DIRECT AND INDIRECT LOW TEMPERATURE GEOTHERMAL DISTRICT HEATING SYSTEMS

Size: px
Start display at page:

Download "DIRECT AND INDIRECT LOW TEMPERATURE GEOTHERMAL DISTRICT HEATING SYSTEMS"

Transcription

1 DIRECT AND INDIRECT LOW TEMPERATURE GEOTHERMAL DISTRICT HEATING SYSTEMS Cuansan Dai and Jun Liang Tianjin Geoteal Reseac and Taining Cente, Tianjin Univesity, 30007, Tianjin, P.R.Cina Key Wods: low teeatue geoteal syste, distict eating systes, late eat excange, otiu design ABSTRACT Te selection of diect o indiect use of low teeatue geoteal distict eating systes is based on te quality of geoteal wate. An indiect geoteal eating distict syste is stongly ecoended if te concentation of soe coosion inducing ceicals suc as cloite in geoteal wate is ig. In te ae, a teoetical etod caable of quantitatively evaluating te teodynaic diffeences between diect and indiect geoteal distict eating systes is oosed. Te contents include: te ain factos effecting te diffeence between te two kinds of eating systes; te deteination of a best oeation ode fo an indiect geoteal distict eating syste and te etod of finding otiu design aaetes. Since late and fae eat excanges (PHEs ae coonly used in indiect geoteal distict eating systes; te advantages of using te PHEs wit vaiable late sacing ae also discussed. Fo coaing te teal efoance between diect and indiect geoteal distict eating systes, a concet of elative teal efficiency is oosed. Once te PHEs ae designed in an indiect geoteal distict eating syste; te otiu flowate atio of geoteal wate to ciculating wate can be found toug an equation deived in te ae, wic as been oved in actice.. INTRODUCTION Distict eating systes wit low teeatue geoteal esouces (< 00 C geoteal wate ae diffeent fo tose wit te fossil fuels boiles. Since te wellead teeatue is diffeent fo well to well, te design suly wate teeatue cannot be set to a standad as it is in conventional boile eating systes. Soe featues about te diect and indiect geoteal distict eating systes ave been discussed by Dai (997. In tis ae a fute analysis is esented. To concise te ae, te detailed deivation of soe equations and te assutions uon wic tese ae based on ae not given. Howeve eades ae efeed to te ae by Dai (997.. THE THERMAL PERFORMANCE COMPARISON Te teal efoance coaison between diect and indiect geoteal distict eating systes is based on te sae wellead teeatue, eating load, and outdoo and indoo teeatues.. Teal balance Equations All te equations below ae deived at te teal steady state conditions, i.e. te abient conditions ae eained uncanged. Te tansient eat tansfe o te eat stoage effect of te building wall on te distict eating syste as not been conseed. Te teal balance equation fo te diect eating syste is: Q d G C + C ln( + ( T Ta ( + C GC GC C C C V A α v in wic Q d is te eat tansfeed o eat load fo a diect eat syste. G is te ass flowate of geoteal wate. C is te secific eat caacity of wate at constant essue (kj/kg C; is te teeatue do of geoteal wate flowing toug te consue s in-building equient (T - T do. T is te suly teeatue of geoteal wate; T do is te outlet teeatue of geoteal wate used fo a diect eating syste. T a is te outdoo teeatue. C v is te secific voluetic eat load caacity of building (W/ 3 C. V is te total volue of a eated building. α and ae eiical constants of eat adiatos in te fo of k α. k is te oveall eat tansfe coefficient of adiatos. is te ean teeatue diffeence between te eat adiato suface and te ai in oos. A is te total eat tansfe aea of eat adiatos. Te above equation can be solved fo by iteation etod, beginning wit a oe initial guess value. Ten te eat load Q d can be obtained. Te indiect eating syste is diffeent fo te diect eating systes as it as PHEs fo te eat tansfeed fo geoteal wate to te ciculating wate. Te teal balance equation can be witten as: wee B B B 3 B Q + BQ B3 C G ( α A G C R C + ( + + ( T P T in wic R is te eat caacity ate atio. P is te teeatue effectiveness based on te stea of geoteal wate. It is a function of Nube Heat Tansfe Unit (Ntu and R (Kays and London, 984. R can be aoxiately given as G /G c since te flus on bot ses ae wates. a (3 3395

2 ex( Ntu ( R fo R R ex( Ntu ( R P ( Ntu, R Ntu fo R + Ntu. Te Relative Teal Efficiency (4 Suose two wells ave te sae wellead aaetes and used fo distict eating wit te sae eating duty. But one is a diect eating syste and te ote is an indiect eating syste. Te geoteal wate flowates sould be diffeent. Te diect geoteal distict eating syste needs less. But ow te diffeence canges, fo exale wit te outdoo teeatue, te eating load facto and te ciculating wate flowate of te indiect eating syste. Te concet of elative teal efficiency is oosed, wic can be witten as: T T o (5 T Tdo in wic T o and T do ae te outlet teeatues fo indiect and diect geoteal distict eating systes, esectively. Fo a secific designed indiect geoteal distict eating syste, an otiu unning condition exists on wic as te best flowate atc of geoteal wate and ciculating wate (Dai, 997. Teefoe fo te indiect eating syste itself sould ave a teal efficiency wic naed as teal efficiency of indiect syste to evaluate te otial unning conditions. We ave: T To (6 T ( To ot Te otiu indiect distict eating syste gives a axiu elative teal efficiency called elative otiu teal efficiency ot. Since it sulies te sae aount of eat as te diect eating syste (Q Q d, ot can be witten as: T ( To ot ( G d ot (7 T Tdo ( G subscit ot eans otiu and d and ae fo diect and indiect eating systes, esectively. Accodingly, te equation (5 can be witten as ot. 3. THE ACCESS OF BEST OPERATION FOR INDIRECT SYSTEMS Note tat te fist at of equation ( is ainly te conseation of te eated building and te PHEs, te second at te teinal eat adiatos, and te tid at te outdoo teeatues. Fute insection of equation ( eveals tat if B and B 3 ae known, te iniu of B is te oint wee te axiu of Q can be acieved. B is a function of P and R. Teefoe, te best oeation oble of tis kind of eating systes becoes tat of finding a suitable flowate of ciculating wate G c o R (G is constant in ode to get te iniu B o te axiu eat Q. Diffeentiating equation ( wit esect to G c and let it equal to zeo, we ave: dp G (8 P dgc Gc wee dp /dg c can be witten in te following fo: dp A P dk G P (9 dgc GC Ntu dgc Gc R above A is te effective eat tansfe aea of PHEs. Te oveall eat tansfe coefficient k of PHEs is: + + k α α c α o k C R + C (0 ( if ignoe te teal oeties diffeence due to te teeatue. wee C + α ( fo odinay PHEs and C ( ϕ Ã fo PHEswit unequal (3 flow coss- section aea in equation (0 α, α c ae te fil convective eat tansfe coefficients of PHEs at te ot and cold ses of PHEs, esectively. is te teal esistance due to fouling. Te owe index is an eiical constant of eat tansfe efoance of PHEs in te fo of Nu CRe P n. ϕ and γ ae te flow cannel coss-section aea atio and te equivalent diaete atio of we cannel se to tat of naow se. Te deivative of k wit esect to G c is + dk α C R (4 dgc G ( C R + C Substitution into equation (9 and using equation (0 we get finally a diffeential equation, P R P P Ntu + (5 Ntu ( R + C / C R Te above equation can be silified by using te following definitions, Ntu P ε (6 P Ntu wee ε, is te sensitivity of effectiveness to Ntu, and R P ε (7 P R is te sensitivity of effectiveness to te eat caacity ate atio R. Tese definitions ae te sae as descibed by Kovaik (989. Consequently, equation (5 can be witten as: R 0. 5P + ε (8 ( R + C / C ε Equation (8 is a nonlinea equation of R. Even toug it is difficult to exibit te solution of tis equation in exlicit fo, nueical analysis oves a eans to find a solution. Note tat te igt se of te above equation is a geneal function of te eat tansfe units Ntu, te caacity ate atio R and te aangeent of a eat excange. It can be calculated wit te sae ocedue as te teeatue effectiveness. 3396

3 4. THE OPTIMUM DESIGN OF PHEs AND HEAT RADIATORS Tee ae two eat tansfe aeas tat ae needed to be deteined in te equation (. One is te eat tansfe aea of te late eat excange, A, wic is included in te teeatue effectiveness P. And te ote is tat of te teinal eat excange, A. Wen te flow aangeent of te PHE is selected, P is a function of te nube of eat tansfe units Ntu and te eat caacity ate atio R, noted as P (Ntu, R (see equation (4.Te oveall eat tansfe coefficient in Ntu is also a function of A wen te ass flowate of geoteal wate and R ae constants. On eaanging te equation (, te eat tansfe aea of teinal adiato A can be obtained: + GC Q A B B Q (9 3 α Te uose is to find te iniu total initial caital cost of te late eat excange and te teinal eat adiatos. Suose te costs of te late eat excange and te adiatos ae linea functions of tei eat tansfe aeas, esectively. Tis eans lage te size of PHE, te ceae e unit eat tansfe aea will be wen a and a ae ositive. COST a + b A (0 COST a + b A ( So te otiu oble becoes tat of finding te iniu total cost of COST t. COST t COST + COST a + a + b A + b A ( wee COST and COST ae te costs of PHEs and te teinal eat adiatos, esectively. b and b ae te costs of te PHE and te teinal eat adiatos e unit eat tansfe aea, esectively. Te unning cost due to uing te two flus toug te eat excanges is not conseed in te ae. Since te estiation of eat load always coesonds to a secific outdoo teeatue, te eat load Q and T a sould be given in ais. Te ai values can be given in two ways. One is as taking te eak loading eat (te axiu eat deand and te lowest outdoo teeatue, and te ote using te tie accuulated aveage eat load wit te aveage outdoo teeatue. Howeve, Q can not exceed C (T -T a, te teoetical axiu eat tat can be dawn fo te geoteal wate wile its disosal teeatue eaces te abient teeatue. In geneal te disosal teeatue is aound 40 C, in tun, te eat extacted fo te geoteal wate is C (T -40, wic sould be a little bit oe tan te eat deand. Tis does not include te case wee geoteal wate afte te PHE is used fo ote eating o bating uoses. In tose cases te outlet teeatue of geoteal wate is about 45 C instead of 40 C. Wen te aveage eat deand is acceted in te design of a eating scee, a eak loading set suc as te back-u boile o te eat u is equied. But in any case, te otiu esults sould be val because usually te eak eat deand can be acieved by egulating te inlet teeatue of te flu flow toug te boile o te eat u. Geneally, te tie eiod of tese eaking sets being loaded is sot. 5. RESULTS AND DISCUSSION Te given calculation exale was based on a eal geoteal eating oject in Tianjin. Te wellead teeatue is 9.5 C. Te oduction ate is about 50 3 /. Ote aaetes ae sown in Table. 5. Coaison of Results fo Diect and Indiect Heating Systes Wit inceasing outdoo teeatue, te elative otiu teal efficiency inceases as sown in te Figue. Te iniu equied geoteal wate flowates fo indiect eating syste (otiu oeation state and fo diect eating syste wit te inceasing outdoo teeatue is sown in te Figue. Cuves fo tee eating load factos of,.0 (oiginal design and. ave been sown in te figue. It can be seen tat wit inceasing te outdoo teeatue and deceasing te eating load facto, te elative otiu teal efficiency inceases. Te consevative design o te lowe eating load facto of an indiect eating oject can ake it to un at ig elative teal efficiency. Howeve, te caital costs would be ig. Te consevative design eans bot te eat tansfe aeas of te PHEs and te eat adiatos sould be lage. Te benefit by inceasing te eat tansfe aea of one se alone is liited. Te elative teal efficiency at diffeent ciculating wate flowates is sown in te Figue 3. Te dased line in te Figue 3 is te best oeation state of te indiect eating syste at diffeent eating load factos. Te ove eating load facto uges te indiect eating syste unning at ig ciculating wate flowate, even wit tis te elative teal efficiency is low. 5. Te Best Oeation of Indiect Heating Systes Te designed eat tansfe aeas of PHEs, A, and of te eat adiatos, A, ae 9 and 30000, esectively. As descibed in te section, wen te geo-wate flowate is fixed, te best oeation oble is to find te best eat caacity atio R o te ciculating wate flowate wen ignoing te secific eat caacity diffeence due to te cange of teeatue. Let te left and igt ses of equation (8 to be denoted as H and F, esectively. In te Figue 4, H and F ae lotted against R. Te value of R at wic H and F ae equal, i.e. te connect oint of H and F is te best oeation ode to be deteined. Fou kinds of situations ae conseed. One is te oiginal designed situation sown as te oint A. Point B is te situation of te owe index,, inceasing, o te eat tansfe efoance of PHEs is bette. Point C indicates te fouling eat esistance facto being doubled. Point D eans tat double late sacing of te PHEs is acceted at te cold ciculating watese. It can be seen tat te ige te eat tansfe efoance of te PHE (te lage is te close (R ot to one, because te unbalance of te two ses flow esults in an aaent sacifice of deceasing te oveall eat tansfe coefficient of te PHE (oint B. Te incease of te fouling eat esistance uges te PHE unning at ig flowate of ciculating wate, i.e. te lowe (R ot (oint C. Te PHE wit te unequal coss-sectional aea of flow cannels as te lowest (R ot in 3397

4 ode to balance te fil eat tansfe coefficients of cold and ot ses (oint D. Te dased lines in te Figue 4 ae te values of H at constant Ntu. Te benefit fo te otial oeation of a geoteal distict eating syste is not aaent as sown in te Table. Tee is not uc diffeence fo te eat suly Q by te syste in a quite we ange of eat caacity atio R. But it does not ean tat te esult is eaningless. On te contay, since te eat load Q is always canging wit te outdoo teeatue, te flowate of geoteal wate sould be egulated accoding to te ule oosed. Otewise, te ciculation u is doing a at of useless wok, wic ay not attact te use s attention. It is teoetically oved tat te best flowate atio is about, wic is coonly oosed in actice (Haison et al 990. Te deceasing of R is elful to ovecoe te isdistibution oble of te flu flow in diffeent bances of a eating netwok, and only a sligt decease of te eat load Q as been obtained duing tis ocess. Howeve, uing owe would be a oble if R wee too low. To incease R is unfavoable fo bot te efficiency of eat utilization and te ydaulic stability of a geoteal eating syste. REFERENCES Dai C. (997. Teal Analysis of Indiect Geoteal Distict Heating Systes, Geoteics, vol. 6, Haison, R., Motie, N. D. and Saason, O. B. (990. Geoteal Heating, Pegaon Pess. Kays, W. M. and London, A. L. (984. Coact Heat Excanges, McGaw-Hill, New Yok. Kovaik, M. (989. Otial Heat Excanges, Tans. ASME, vol., Te Best Design of PHEs and Heat Radiatos Fist of all, te eating load is fixed as Q equals 6.0 MW. Te conventional design etod is to design PHEs and te eat adiatos seaately at given disosing teeatue of geo-wate. Since te suly and etun teeatues cannot be given befoe te PHEs ave been designed, te conventional design etod is not suitable fo tis case. Substituting Equation (9 into Equation (, a new equation fo te total cost is obtained, wic as A as te only indeendent vaiable. Te iniu value of COST t can be deteined, teefoe, by finding te solution of te diffeential equation wit esect to A diectly. Te otiu value of A ot is obtained by a nueical etod. Te equation is given by: dp da + C + Q P C P b ( + Q b (3 Figue 5 sows te best design values of A and A against te cange of cost atio e unit eat tansfe aea of te eat adiato to PHEs. Table. Paaete set in te exale PHE aangeent : ass - ass countecuent PHE Heat efoance o 0.4 : Nu 0.35 Re P Heat adiato efoance : k α, α.05, 0.35 Heat loss caacity of te : 000 W/ C building, C v V Flowate of geo-wate : 50 3 /ou Well ead teeatue, T : 9.5 C Outdoo teeatue, T a : -9 C Heat deand (T 8 C : 6.0 MW Cost of PHE e : 50 USD (Titaniu Cost of adiato e : 7.5 USD (Cast ion 6. CONCLUSIONS Te best design and oeation etod of te indiect geoteal distict eating systes and tei efoance coaison wit te diect eating systes wee oosed in te ae. Te effects of soe teal aaetes on te design and oeation of low teeatue geoteal distict eating systes ave been sown in foula and Figues, wic is elful fo te enginees and tecnicians to undestand te geneal beavios of a low teeatue geoteal eating syste and its design. 3398

5 ot Heating load facto T a ( C Figue. Relative otiu teal efficiency against te outdoo teeatue at diffeent eating load factos H and F D Paaetes fo Point A,B, C and D A (,, C B (.3,, C C (,, C D (,, 4 C C A H B Ntu F R G ( 3 / Indiect Syste Diect Syste Heating load facto T a ( C..0 Figue. Te iniu equied geo-wate flowates fo indiect eating syste (otiu oeation state vs. te outdoo teeatue Figue 4. Te left se H and igt se F of Equation (8 against te eat caacity atio R Table. Calculation esults fo equation (8 R Ntu H F Q (MW * * Te otiu oint A in Figue Heating load facto G c ( 3 / Figue 3. Te elative teal efficiency at diffeent ciculating wate flowates A ( A A b /b Figue 5. Otiu A and A wit te canging of cost atio of adiatos to PHEs e unit eat tansfe aea b /b (at R A ( 3399

Essential Question How can you find the surface area and the volume of a cone? 3 in. π

Essential Question How can you find the surface area and the volume of a cone? 3 in. π 11.7 Suface Aeas and Volumes of Cones Essential Question How can you find te suface aea and te volume of a cone? Finding te Suface Aea of a Cone Wok wit a patne. Constuct a cicle wit a adius of 3 inces.

More information

5.10. Area and Perimeter INSERT

5.10. Area and Perimeter INSERT 5.10 Aea and Peimete INSERT A Peimete We egin tis section y eviewing te definition of a polygon, and te definition of peimete. Definition A polygon is a closed geometic figue, wit at least tee sides, in

More information

Point Pollution Sources Dimensioning

Point Pollution Sources Dimensioning Point Pollution Sources Diensioning Georgeta CUCULEANU 1 ABSTRACT In tis paper a etod for deterining te ain pysical caracteristics of te point pollution sources is presented. It can be used to find te

More information

Geometry Supplement for Math 60 Perimeter, Area, and Volume

Geometry Supplement for Math 60 Perimeter, Area, and Volume Geomety Suppement fo Mat 60 Peimete, Aea, and Voume Geomety comes fom te Geek wods geo meaning eat and meton meaning measue. Today we wi ean about ow to measue cetain featues of two- and tee-dimensiona

More information

Investigation of a hydraulic impact. a technology in rock breaking

Investigation of a hydraulic impact. a technology in rock breaking Investigation of a ydaulic imact a tecnology in ock beaking Matin Genet * Laboatoie de Mécanique et de Tecnologie, 61 av. du Pésident Wilson, 94235 Cacan Cedex, Fance D. Wenyi Yan Senio Lectue Deatment

More information

Passive Cooling of Glazing Surfaces Using Solar Chimneys

Passive Cooling of Glazing Surfaces Using Solar Chimneys Intenational Confeence on Renewable Enegies and Powe Quality (ICREPQ 16 Madid (Spain, 4 t to 6 t May, 2016 Renewable Enegy and Powe Quality Jounal (RE&PQJ ISSN 2172-038 X, No.14 May 2016 Passive Cooling

More information

Quality and pricing of delivery services in the e-commerce sector 1

Quality and pricing of delivery services in the e-commerce sector 1 Quality and icing of delivey sevices in te e-commece secto Claie Bosenbege 2, Helmut Ceme 3, Pilie De Donde 4 and Denis Joam 5 INTRODUCTION In most uoean counties, te national univesal ostal sevice ovides

More information

Total surface area: the area of the lateral faces combined with the area of both bases

Total surface area: the area of the lateral faces combined with the area of both bases Capte 9: Measuement and te Metic System Section 9.: Volume and Suface Aea Total Suface Aea of a Cylinde and a Pism Lateal aea: te aea of te egions bounded by te lateal faces of a pism Total suface aea:

More information

MODELING OF VENTILATION AIR HEAT RECOVERY AND ITS IMPACT IN HIGH-PERFORMANCE GREEN BUILDINGS

MODELING OF VENTILATION AIR HEAT RECOVERY AND ITS IMPACT IN HIGH-PERFORMANCE GREEN BUILDINGS MODELING OF VENTILATION AIR HEAT RECOVERY AND ITS IMPACT IN HIGH-PERFORMANCE GREEN BUILDINGS Sa Nuenbege and Andew Lau College of Engineeing, Te Pennylvania State Univeity, Univeity Pak, PA ABSTRACT A

More information

Performance Analysis of the V-BLAST Algorithm: An Analytical Approach

Performance Analysis of the V-BLAST Algorithm: An Analytical Approach Pefoance Analysis of te V-BLAST Algoit: An Analytical Appoac S. Loyka, F. Gagnon Abstact An analytical appoac to te pefoance analysis of te V-BLAST algoit is pesented in tis pape, wic is based on te analytical

More information

COMPARATIVE STUDY OF SPECIFIC HEAT CAPACITIES OF SOME VEGETABLE OILS OBTAINED BY DSC AND MICROWAVE OVEN

COMPARATIVE STUDY OF SPECIFIC HEAT CAPACITIES OF SOME VEGETABLE OILS OBTAINED BY DSC AND MICROWAVE OVEN Jounal of Temal Analysis and Caloimety, Vol. 79 (2005) 283 287 COMPARATIVE TUDY OF PECIFIC HEAT CAPACITIE OF OME VEGETABLE OIL OBTAINED BY DC AND MICROWAVE OVEN J. C. O. antos 1*, M. G. O. antos 2, J.

More information

Balanced Binary Trees

Balanced Binary Trees Balanced Binary Trees 1 Binary searc trees provide O(log N) searc times provided tat te nodes are distributed in a reasonably balanced manner. Unfortunately, tat is not always te case and performing a

More information

Overall stability of multi-span portal sheds at right-angles to the portal spans

Overall stability of multi-span portal sheds at right-angles to the portal spans Overall stability of multi-span portal seds at rigt-angles to te portal spans SCI s Senior Manager for Standards, Carles M King, explains te approac for design of long-span portal seds. 1. Introduction

More information

Planck + Einstein on -Day Fundamental Physical Constants in a Relativistic Perspective and The Design of a Black Hole Gun!

Planck + Einstein on -Day Fundamental Physical Constants in a Relativistic Perspective and The Design of a Black Hole Gun! Plank + Einstein on -Day Fundamental Pysial Constants in a Relatiisti Pesetie and Te Design of a Blak Hole Gun! Esen Gaade Haug Nowegian Uniesity of Life Sienes Ma 7, 06 Abstat Tis ae sow ow we an maniulate

More information

EECS 556, 2003, Noll Exam #1: 4

EECS 556, 2003, Noll Exam #1: 4 EECS 556 003 o Exa #: 4 3. Fite esig: a. Si tae te oute ouct *. b. Use δ [ δ ]'*[ δ ]. c. Hee we foow te fo of fequec saig escibe i sectio 4.3. of te text. We sae at te x 7 x7 ocatios a ivese DFT to get

More information

Calculation of Theoretical Torque and Displacement in an Internal Gear Pump

Calculation of Theoretical Torque and Displacement in an Internal Gear Pump TECHNICAL REPORT Calculation of Teoretical Torque and Displacement in an Internal Gear Pump Y. INAGUMA Tis paper describes numerical determination of teoretical torque (ideal torque) and teoretical stroke

More information

Perimeter, Area, and Circumference

Perimeter, Area, and Circumference 51 CHAPTER 9 Geomety B C E A 5x x M x D F To contuct a golden ectangle, one in wic te atio of te lengt to te widt i equal to te atio of te lengt plu te widt to te lengt, egin wit a quae ABCD. Wit te point

More information

Soil-structure interaction of seismically isolated bridge structure during very strong ground motion

Soil-structure interaction of seismically isolated bridge structure during very strong ground motion IABSE-JSCE Joint Confeene on Advanes in Bide Enineein-III, Ast 1-, 15, Daa, Banlades ISBN: 978-984-33-9313-5 Ain, Oi, Biyan, Ueda eds wwwiabse-bdo Soil-stte inteation of seisially isolated bide stte din

More information

Optimization Model of Oil-Volume Marking with Tilted Oil Tank

Optimization Model of Oil-Volume Marking with Tilted Oil Tank Open Journal of Optimization 1 1 - ttp://.doi.org/1.36/ojop.1.1 Publised Online December 1 (ttp://www.scirp.org/journal/ojop) Optimization Model of Oil-olume Marking wit Tilted Oil Tank Wei Xie 1 Xiaojing

More information

Effect of Twisted-tape Inserts on Heat Transfer in a Tube

Effect of Twisted-tape Inserts on Heat Transfer in a Tube Effect of Twisted-tae Inserts on Heat Transfer in a Tube Watcarin Nootong, Smit Eiamsa-ard and Pongjet Promvonge, * Deartment of Mecanical Engineering, Faculty of Engineering, King Mongkut s Institute

More information

ANALYSIS OF WORK ROLL THERMAL BEHAVIOR FOR 1450MM HOT STRIP MILL WITH GENETIC ALGORITHM

ANALYSIS OF WORK ROLL THERMAL BEHAVIOR FOR 1450MM HOT STRIP MILL WITH GENETIC ALGORITHM Journal of Teoretical and Applied Information Tecnology 3 t September 2. Vol. 43 No.2 5-2 JATIT & LLS. All rigts reserved. ANALYSIS OF WORK ROLL THERMAL BEHAVIOR FOR 45MM HOT STRIP MILL WITH GENETIC ALGORITHM

More information

OD DVOSTRUKO ZASTAKLJENOG PROZORA DO DVOSTRUKE FASADE INDIKATORI PRENOSA TOPLOTE STACIONARNOG STANJA

OD DVOSTRUKO ZASTAKLJENOG PROZORA DO DVOSTRUKE FASADE INDIKATORI PRENOSA TOPLOTE STACIONARNOG STANJA OD DVOSTRUKO ZASTAKLJENOG PROZORA DO DVOSTRUKE FASADE INDIKATORI PRENOSA TOPLOTE STACIONARNOG STANJA FROM DOUBLE-GLAZED WINDOW TO DOUBLE-SKIN FACADE STEADY STATE HEAT TRANSFER INDICATORS Gabriel NĂSTASE

More information

Prestack considerations for the migration of oblique reflectors

Prestack considerations for the migration of oblique reflectors Petack igation of obique efecto Petack conideation fo te igation of obique efecto Jon C. Bancoft and Cae P. Uenbac ABSTRACT A eo-offet tacked ection tat contain an obique efecto can be igated uccefuy by

More information

Study of Steam Export Transients in a Combined Cycle Power Plant

Study of Steam Export Transients in a Combined Cycle Power Plant Study of Steam Export Transients in a Combined Cycle ower lant Alfonso Junquera Delgado Departamento Mecánico, Empresarios Agrupados c\ Magallanes 3 Madrid 8003 ajd@empre.es Almudena Travesí de los Santos

More information

Physics Engineering PC 1431 Experiment P2 Heat Engine. Section B: Brief Theory (condensed from Serway & Jewett)

Physics Engineering PC 1431 Experiment P2 Heat Engine. Section B: Brief Theory (condensed from Serway & Jewett) Pysics Engineering PC 1431 Experiment P2 Heat Engine Section A: Introduction Te invention of steam engine played a very significant role in te Industrial Revolution from te late 1700s to early 1800s. Te

More information

Concentric Dual-tubing Steam Injection: A New Model for Predicting Steam Pressure in the Annulus

Concentric Dual-tubing Steam Injection: A New Model for Predicting Steam Pressure in the Annulus Jounal of Industial Intelligent Infomation Vol., No. 4, ecembe 014 Concentic ual-g Steam Injection: A New Model fo Pedictg Steam Pessue te Hao Gu, Lsong Ceng, Sijun Huang, Suang Ai, Saolei Wei epatment

More information

Heat production by sacred lotus flowers depends on ambient temperature, not light cycle

Heat production by sacred lotus flowers depends on ambient temperature, not light cycle Jounal of Expeimental Botany, Vol. 49, No. 324, pp. 1213 1217, July 1998 Heat poduction by saced lotus flowes depends on ambient tempeatue, not ligt cycle Roge S. Seymou1,3, Paul Scultze-Motel1 and I.

More information

BIOLOGICALLY INSPIRED MULTIFUNCTIONAL COMPOSITE PANEL WITH INTEGRATED CIRCULATORY SYSTEM FOR THERMAL CONTROL

BIOLOGICALLY INSPIRED MULTIFUNCTIONAL COMPOSITE PANEL WITH INTEGRATED CIRCULATORY SYSTEM FOR THERMAL CONTROL BIOLOGICALLY INSPIRED MULTIFUNCTIONAL COMPOSITE PANEL WITH INTEGRATED CIRCULATORY SYSTEM FOR THERMAL CONTROL A. D. Williams, M. E. Lyall, L. E. Underwood, and B. J. Arritt Air Force Researc Laboratory,

More information

APPENDIX C2: Design of Canard Aircraft

APPENDIX C2: Design of Canard Aircraft APPENDIX 2: Design of anard Aircraft Tis appendix is a part of te book General Aviation Aircraft Design: Applied Metods and Procedures by norri Gudundsson, publised by Elsevier, Inc. Te book is available

More information

Math GPS. 2. Art projects include structures made with straws this week.

Math GPS. 2. Art projects include structures made with straws this week. Number of Plants Mat GPS. List te measurements in order from greatest to least., inces,5 feet mile 75 yards Greatest. Art projects include structures made wit straws tis week. Number of Projects, p Total

More information

Path Loss Propagation Model for Gombi Town Adamawa State Nigeria

Path Loss Propagation Model for Gombi Town Adamawa State Nigeria 86 IJCSNS Intenational Jounal of Copute Science an Netwok Secuity, VO. No.6, June 0 at oss opagation Moel fo Gobi own Aaawa State Nigeia +Salangwa, D. A. & Jeoe, G. +Depatent of ysics, Aaawa State Univesity,

More information

Revision Topic 12: Area and Volume Area of simple shapes

Revision Topic 12: Area and Volume Area of simple shapes Revision Topic : Area and Volume Area of simple sapes You need to learn ALL of te following area formulae: Rectangle Triangle W L b Area = lengt widt Area = base eigt = ½ b Parallelogram Trapezium a b

More information

The Vapor Compression Cycle in Aircraft Air-Conditioning Systems

The Vapor Compression Cycle in Aircraft Air-Conditioning Systems FLECS_N_Vaor-Cycle Aircraft Design and Systems Grou (AERO Deartment of Automotive and Aeronautical Engineering Hamburg University of Alied Sciences (HAW Berliner or 9 D - 20099 Hamburg e Vaor Comression

More information

Calculation Methodology of Translucent Construction Elements in Buildings and Other Structures

Calculation Methodology of Translucent Construction Elements in Buildings and Other Structures MATEC Web of Conferences 96, 005 (08) ttps://doi.org/0.05/matecconf/0896005 XXVII R-S-P Seminar 08, Teoretical Foundation of Civil Engineering Calculation Metodology of Translucent Construction Elements

More information

Modeling Fracture and Cracking Resistance of Palm Nuts (Dura Variety)

Modeling Fracture and Cracking Resistance of Palm Nuts (Dura Variety) Modeling Factue and Cacking Resistance of Palm Nuts (Dua Vaiety) S.I. Manuwa Depatment of Agicultual Engineeing, Fedeal Univesity of Technology Akue, Nigeia Abstact Compessive stength of palm nuts (dua

More information

Unusual Diamagnetism in Semiconductor Nano-Objects

Unusual Diamagnetism in Semiconductor Nano-Objects Psics Psics Pocedia Pocedia 3 9 33 37 www.elsevie.co/locate/pocedia 4t Intenational Confeence on Naow Gap Seiconducto and Sstes Unusual Diaanetis in Seiconducto Nano-Objects L. M. Tu and O. oskobonikov*

More information

青藜苑教育 Example : Find te area of te following trapezium. 7cm 4.5cm cm To find te area, you add te parallel sides 7

青藜苑教育 Example : Find te area of te following trapezium. 7cm 4.5cm cm To find te area, you add te parallel sides 7 青藜苑教育 www.tetopedu.com 00-6895997 3095457 Area of simple sapes Revision Topic : Area and Volume You need to learn ALL of te following area formulae: Rectangle Triangle W L Area = lengt widt Area = b base

More information

Prediction of steel plate deformation due to triangle heating using the inherent strain method

Prediction of steel plate deformation due to triangle heating using the inherent strain method J Mar Sci Tecnol (005) 10:11 16 DOI 10.1007/s00773-005-00-5 Prediction of steel plate deformation due to triangle eating using te inerent strain metod Cang Doo Jang 1, Tae Hoon Kim, Dae Eun Ko 3, Tomas

More information

Applying Trigonometric Functions. ENTERTAINMENT The circus has arrived and the roustabouts must put

Applying Trigonometric Functions. ENTERTAINMENT The circus has arrived and the roustabouts must put 5-4 OJETIVE Use trigonometry to find te measures of te sides of rigt triangles. pplying Trigonometric Functions ENTERTINMENT Te circus as arrived and te roustabouts must put up te main tent in a field

More information

Math Practice Use a Formula

Math Practice Use a Formula 9.4 Volumes of Prisms How can you find te volume of a prism? ACTIVITY: Pearls in a Treasure Cest Work wit a partner. A treasure cest is filled wit valuable pearls. Eac pearl is about centimeter in diameter

More information

234 The National Strategies Secondary Mathematics exemplification: Y7

234 The National Strategies Secondary Mathematics exemplification: Y7 234 Te National Strategies Secondary Matematics exemplification: Y7 Pupils sould learn to: Deduce and use formulae to calculate lengts, perimeters, areas and volumes in 2-D and 3-D sapes As outcomes, Year

More information

Gas Flow into Rotary Valve Intake and Exhaust Mechanism in Internal Combustion Engine

Gas Flow into Rotary Valve Intake and Exhaust Mechanism in Internal Combustion Engine World Academy of Science, Engineering and Tecnology Vol:7, No:4, 13 Gas Flow into Rotary Valve Intake and Exaust Mecanism in Internal Combustion Engine R. Usubamatov, Z. A. Rasid International Science

More information

16.1 Volume of Prisms and Cylinders

16.1 Volume of Prisms and Cylinders Name Class Date 16.1 Volume of Prisms and Cylinders Essential Question: How do te formulas for te volume of a prism and cylinder relate to area formulas tat you already know? Explore G.11.D Apply te formulas

More information

20.1 Heights and distances

20.1 Heights and distances 20 Heigts an istances INTROUTION In tis capter, we will learn te practical use of trigonometry in our ay-to-ay life. We will see ow trigonometry is use for fining te eigts an istances of various objects,

More information

Influence of the mass flow ratio water-air on the volumetric mass transfer coefficient in a cooling tower

Influence of the mass flow ratio water-air on the volumetric mass transfer coefficient in a cooling tower International Journal of CemTec Researc CODEN (UA): IJCRGG, IN: 974-49, IN(Online):455-9555 Vol.11 No.1, pp 167-173, 18 Influence of te mass flow ratio water-air on te volumetric mass transfer coefficient

More information

To find the volume of a pyramid and of a cone

To find the volume of a pyramid and of a cone - Volumes of Pyramids and Cones Common Core State Standards G-GMD.A. Use volume formulas for... pyramids, cones... to solve problems. G-MG.A. Use geometric sapes, teir measures, and teir properties to

More information

An Indian Journal. Full Paper. Trade Science Inc.

An Indian Journal. Full Paper. Trade Science Inc. Tade Science Inc. July 006 Volume 1 Iue 1 CTAIJ, 1(1), 006 [8-1] Specific Heat Capacity Of Some Mineal, Syntetic And Semi-Syntetic Automotive Lubicant Oil Afte Temal Degadation Coeponding Auto Joé Calo

More information

High Directivity Microstrip Coupler Using Variable Width Structure

High Directivity Microstrip Coupler Using Variable Width Structure IOS Jounal of Eletonis and Communiation Engineeing IOS-JECE e-issn: 78-834,p- ISSN: 78-8735.Volume 9, Issue 4, Ve. V Jul - Aug. 04, PP 4-8.iosjounals.og Hig Dietivity Miostip Couple Using Vaiable Widt

More information

HCR OF HEAT PUMP ROOM AIR CONDITIONER IN CHINA. Beijing , China

HCR OF HEAT PUMP ROOM AIR CONDITIONER IN CHINA. Beijing , China OF HEA PUMP ROOM AIR CONDIIONER IN CHINA Baolong Wang 1, Wenxing Si 1, uan Cen 1 1 Department of Building Sciencesingua University, Beijing 100084, Cina ABSRAC Definition of eating/cooling capacity ratio

More information

4.2 Using Similar Shapes

4.2 Using Similar Shapes LESSON 4.2 Using Similar Sapes Proportionalit 7.5. Generalize te critical attributes of similarit, including ratios witin and between similar sapes. ESSENTIL QUESTION How can ou use similar sapes to find

More information

Annex 16. Methodological Tool. Tool to determine project emissions from flaring gases containing methane

Annex 16. Methodological Tool. Tool to determine project emissions from flaring gases containing methane CDM Met Panel Twenty-fourt meeting Page 1 Metodological Tool Tool to determine project emissions from flaring es containing metane I. DEFINITIONS, SCOPE, APPLICABILITY AND PARAMETERS Definitions For te

More information

arxiv: v1 [q-bio.pe] 14 Sep 2016

arxiv: v1 [q-bio.pe] 14 Sep 2016 Feuay 7, 8 :4 Poceedings Tim Size: 9in x 6in axiv:69.434v [q-io.pe] 4 Sep 6 A EPIDEIOLOGICAL ODEL OF VIRAL IFECTIOS I A VARROA-IFESTED EE COLOY: THE CASE OF A EE-DEPEDET ITE POPULATIO SIZE SARA ERARDI,

More information

Ground Improvement Using Preloading with Prefabricated Vertical Drains

Ground Improvement Using Preloading with Prefabricated Vertical Drains DISCUSSION of: Ground Improvement Using Preloading wit Prefabricated Vertical Drains Full Reference: Dar, A.S., Siddique, A., Ameen, S.F., (211). Ground Improvement using Pre-loading wit Prefabricated

More information

Goal: Measure the pump curve(s)

Goal: Measure the pump curve(s) Pump Performance Tes;ng Goal: Measure te pump curve(s) Head versus flow rate: Efficiency versus flow rate: Maximum ead at = 0 Maximum flow rate at = 0 η η = 0 wen = 0 and = 0 Maximum efficiency Pump tes;ng

More information

The Disk Method. 456 CHAPTER 7 Applications of Integration

The Disk Method. 456 CHAPTER 7 Applications of Integration 56 CHAPTE 7 Applictions of Integtion Section 7 Volume: Te Disk Meto Fin te volume of soli of evolution using te isk meto Fin te volume of soli of evolution using te wse meto Fin te volume of soli wit known

More information

A snapshot of SO 2 concentrations in Australian wines

A snapshot of SO 2 concentrations in Australian wines A snapshot of SO 2 concentations in Austalian ines Sulfu dioxide (SO 2 ) is a pesevative idely used in foods and beveages. In inemaking, SO 2 is a vey common additive, due to its antioxidant and antimicobial

More information

10 Fingers of Death: Algorithms for Combat Killing Roger Smith and Don Stoner Titan Corporation

10 Fingers of Death: Algorithms for Combat Killing Roger Smith and Don Stoner Titan Corporation 10 Fingers of Deat: Algoritms for Combat Killing Roger Smit and Don Stoner Titan Cororation Good sooting games need good killing algoritms. Tis gem rovides a series of combat algoritms tat can be used

More information

2. The differential pressure across control valves must not vary too much

2. The differential pressure across control valves must not vary too much 2. Te differential pressre across control valves mst not vary too mc Common roblems roblems, typical indicating tat condition nmber two is not met: - Continos oscillation of room temperatre. - Room temperatres

More information

Status, Caste, and the Time Allocation of Women in Rural India

Status, Caste, and the Time Allocation of Women in Rural India Status, Caste, and te Time Allocation of Women in Rual India By Mukes Esaan, Baat Ramasami, and Wilima Wada * June 9 ABSTRACT We ague tat omen may be disinclined to paticipate in maket ok in te ual aeas

More information

FABRICATION AND TESTING OF A HIGH-TEMPERATURE PRINTED CIRCUIT HEAT EXCHANGER

FABRICATION AND TESTING OF A HIGH-TEMPERATURE PRINTED CIRCUIT HEAT EXCHANGER FABRICATION AND TESTING OF A HIGH-TEMPERATURE PRINTED CIRCUIT HEAT EXCHANGER Mingui Cen, Xiaodong Sun *, Ricard N. Cristensen Te Oio State University 201 W 19 t Ave, Columbus, OH 43210 cen.3370@osu.edu,

More information

1/1 FULL SIZE 3/4 QUARTER SIZE 1/2 HALF SIZE EXTRA LARGE SIZE EXTRA LONG SIZE

1/1 FULL SIZE 3/4 QUARTER SIZE 1/2 HALF SIZE EXTRA LARGE SIZE EXTRA LONG SIZE STERILE CONTAINER SYSTEMS BIO-BARRIER 1/1 FULL SIZE 3/4 QUARTER SIZE 1/2 HALF SIZE EXTRA LARGE SIZE EXTRA LONG SIZE Aygün Bio-Barrier model sterilization container systems are designed wit mecanical valves

More information

A Simple Additive Re-weighting Strategy for Improving Margins

A Simple Additive Re-weighting Strategy for Improving Margins A Simple Additive Re-weigting Stategy fo Impoving Magins abio Aiolli and Alessando Spedti Depatment of Compte Science, Coso Italia 4, Pisa, Italy e-mail: aiolli, peso @dinipiit Abstact We pesent a sample

More information

Russell James Department of Scientific and Industrial Research Taupo-ldairakei, New Zealand

Russell James Department of Scientific and Industrial Research Taupo-ldairakei, New Zealand MEASUREMENT OF STEAM-TJATER FLOWS FOR THE TOTAL FLOW TURBIlJE Russell James Department of Scientific and Industrial Researc Taupo-ldairakei, New Zealand Hot water geotermal fields discarge steam-water

More information

1/1 FULL SIZE 3/4 QUARTER SIZE 1/2 HALF SIZE EXTRA LARGE SIZE EXTRA LONG SIZE

1/1 FULL SIZE 3/4 QUARTER SIZE 1/2 HALF SIZE EXTRA LARGE SIZE EXTRA LONG SIZE BIO-BARRIER 1/1 FULL SIZE 3/4 QUARTER SIZE 1/2 HALF SIZE EXTRA LARGE SIZE EXTRA LONG SIZE Aygün Bio-Barrier model sterilization container systems are designed wit mecanical valves bot in bottom and lid

More information

TORQUE CONVERTER MODELLING FOR ACCELERATION SIMULATION

TORQUE CONVERTER MODELLING FOR ACCELERATION SIMULATION UNIVERSITY OF PITESTI SCIENTIFIC BULLETIN FACULTY OF MECHANICS AND TECHNOLOGY AUTOMOTIVE series, year XVII, no.1 ( 3 ) TORQUE CONVERTER MODELLING FOR ACCELERATION SIMULATION 1 Ciobotaru, Ticuşor *, 1 Vînturiş,

More information

Numerical Simulation of Stresses in Thin-rimmed Spur Gears with Keyway B. Brůžek, E. Leidich

Numerical Simulation of Stresses in Thin-rimmed Spur Gears with Keyway B. Brůžek, E. Leidich Numerical Simulation of Stresses in Tin-rimmed Spur Gears wit Keyway B. Brůžek, E. Leidic Tis paper contains an investigation of te key on a stress distribution in a tin-rimmed spur gear. A stress analysis

More information

László Mester. The new physical-mechanical theory of granular materials

László Mester. The new physical-mechanical theory of granular materials László Mester Te new pysical-mecanical teory of granular materials 9 - - Contents Introduction 3 Granular material as a distinct state of matter 4 Pysical properties of te granular material in relation

More information

Installation the DELTABEAM Frame

Installation the DELTABEAM Frame Tese installation instructions are intended to be used togeter wit te project s erection metod statement were te instructions may be complemented. If tere are differences between te erection metod statement

More information

We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors

We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors We are IntecOpen, te world s leading publiser of Open Access books Built by scientists, for scientists 3,500 108,000 1.7 M Open access books available International autors and editors Downloads Our autors

More information

Finding Minimum Values of Distances and Distance Ratios in ATS Spectrum Management

Finding Minimum Values of Distances and Distance Ratios in ATS Spectrum Management MP93 MITRE PRODUCT Fining Minimm Vales of Distances an Distance Ratios in ATS Spectm Management D. Leone C. Monticone D. Rica E. Snow Fank Bo Decembe 8 Te contents of tis mateial eflect te views of te

More information

2 2D 2F. 1pc for each 20 m of wire. h (min. 45) h (min. 45) 3AC. see details J, E

2 2D 2F. 1pc for each 20 m of wire. h (min. 45) h (min. 45) 3AC. see details J, E TEXTILE AIR DIFFUSERS - - INSTRUCTIONS AIR FOR MOUNTING 1 1D 1F see details A, B, C 2 2D 2F see details A, B, C (min. 32) min. every 0 mm 1pc for eac 20 m of wire min. every 0 mm 1pc for eac 20 m of wire

More information

International Plant Protection Convention Page 1 of 10

International Plant Protection Convention Page 1 of 10 International Plant Protection Convention Draft ISPM: Revision to Annex 1 and Annex 2 to ISPM 15 (Regulation of wood packaging material in international trade) 2006-010A&B [1]Draft revision of Annex 1

More information

EMPIRICAL MATHEMATICAL MODELS OF THE DEPENDENCE OF THE SPECIFIC CUTTING FORCE ON THICKNESS OF CUT IN TURNING

EMPIRICAL MATHEMATICAL MODELS OF THE DEPENDENCE OF THE SPECIFIC CUTTING FORCE ON THICKNESS OF CUT IN TURNING . Sten VELCHEV,. Ivn KOLEV, 3. Ksii IVANOV EMPIRICAL MATHEMATICAL MODELS OF THE DEPENDENCE OF THE SPECIFIC CUTTING FORCE ON THICKNESS OF CUT IN TURNING -3. DEPARTMENT OF MACHINE TOOLS & MANUFACTURING,

More information

Description of Danish Practices in Retail Trade Statistics.

Description of Danish Practices in Retail Trade Statistics. Description of Danis Practices in Retail Trade Statistics. 1. Statistical units and reporting units Units and population Te enterprises in te Retail Trade Index are all legal units. In te Central Business

More information

FACTORS DETERMINING UNITED STATES IMPORTS OF COFFEE

FACTORS DETERMINING UNITED STATES IMPORTS OF COFFEE 12 November 1953 FACTORS DETERMINING UNITED STATES IMPORTS OF COFFEE The present paper is the first in a series which will offer analyses of the factors that account for the imports into the United States

More information

SUBJECT Temecula Valley Wine Country Community Plan GPA01077 Ord Amd No Charge your time to these case numbers

SUBJECT Temecula Valley Wine Country Community Plan GPA01077 Ord Amd No Charge your time to these case numbers RVERSDE COUNTY PLANNNG DEPARTMENT Caolyn Syms Luna Diecto DATE August 29 203 TO Clek of the Boad of Supevisos FROM Planning Depatment Riveside Office SUBJECT Temecula Valley Wine County Community Plan

More information

CO-ROTATING FULLY INTERMESHING TWIN-SCREW COMPOUNDING: ADVANCEMENTS FOR IMPROVED PERFORMANCE AND PRODUCTIVITY

CO-ROTATING FULLY INTERMESHING TWIN-SCREW COMPOUNDING: ADVANCEMENTS FOR IMPROVED PERFORMANCE AND PRODUCTIVITY CO-ROTATING FULLY INTERMESHING TWIN-SCREW COMPOUNDING: ADVANCEMENTS FOR IMPROVED PERFORMANCE AND PRODUCTIVITY Paul G. Andersen, Coperion Corporation, Ramsey, NJ Frank Lecner, Coperion GmbH, Stuttgart,

More information

Fixation effects: do they exist in design problem solving?

Fixation effects: do they exist in design problem solving? Environment and Planning B: Planning and Design, 1993, volume 20, pages 333-345 Fixation effects: do tey exist in design problem solving? A T Purcell, P Williams, J S Gero, B Colbron Department of Arcitectural

More information

Volumes of Pyramids. Essential Question How can you find the volume of a pyramid?

Volumes of Pyramids. Essential Question How can you find the volume of a pyramid? 11.6 Volumes of Pyramids Essential Question How can you find te volume of a pyramid? Finding te Volume of a Pyramid Work wit a partner. Te pyramid and te prism ave te same eigt and te same square base.

More information

STRUCTURE OF EARNINGS STATISTICS 2010

STRUCTURE OF EARNINGS STATISTICS 2010 Office for Strategy and Studies inistry for Econoy and Eployent STRUCTURE OF EARNINGS STATISTICS 010 QUALITY REPORT (Coission Regulation (EC) Nº 698/006, of ay te 5t, Ipleenting Council Regulation 530/1999,

More information

Analysing the energy consumption of air handling units by Hungarian and international methods

Analysing the energy consumption of air handling units by Hungarian and international methods Analysing te energy consumption of air andling units by Hungarian and international metods László Kajtár 1, Miklós Kassai 2,* 1,2 Budapest University of Tecnology and Economics (BUTE), Budapest, Hungary

More information

Red Green Black Trees: Extension to Red Black Trees

Red Green Black Trees: Extension to Red Black Trees Red Green Black Trees: Extension to Red Black Trees Seyfeddine Zouana*, Djamel Eddine Zegour Laboratoire de la Communication dans les Systèmes Informatiques, Ecole nationale Supérieure d'informatique,

More information

Measured Adiabatic Effectiveness and Heat Transfer for Blowing From the Tip of a Turbine Blade

Measured Adiabatic Effectiveness and Heat Transfer for Blowing From the Tip of a Turbine Blade See discussions, stats, and autor profiles for tis publication at: ttps://www.researcgate.net/publication/4554895 Measured Adiabatic Effectiveness and Heat Transfer for Blowing From te Tip of a Turbine

More information

THE REDESIGNED CANADIAN MONTHLY WHOLESALE AND RETAIL TRADE SURVEY: A POSTMORTEM OF THE IMPLEMENTATION

THE REDESIGNED CANADIAN MONTHLY WHOLESALE AND RETAIL TRADE SURVEY: A POSTMORTEM OF THE IMPLEMENTATION ASA Section on Survey Researc Metods THE REDESIGNED CANADIAN MONTHLY WHOLESALE AND RETAIL TRADE SURVEY: A POSTMORTEM OF THE IMPLEMENTATION Julie Trépanier, Statistics Canada Julie Trépanier, Business Survey

More information

We Protect Your Yarn Like No One Else

We Protect Your Yarn Like No One Else FOR FURTHER INFORMATION VISIT WWW.SPINCAN.NET We Protect Your Yarn Like No One Else SPINCAN MANUFACTURING COMPANY REGD OFFICE Sakespeare Sarani, Century Towers, Room no. 501 Kolkata 700 017, India PHONE

More information

Is urban food demand in the Philippines different from China?

Is urban food demand in the Philippines different from China? Singapore Management University Institutional Knowledge at Singapore Management University Researc Collection Scool Of Economics Scool of Economics 0-04 Is urban food demand in te Pilippines different

More information

Variance Estimation of the Design Effect

Variance Estimation of the Design Effect JSM 013 - Survey Researc Metods Section Variance Estimation of te Design Effect Alberto Padilla Banco de México Abstract Sample size determination is a crucial part of te planning process of a survey and

More information

The Violin Bow: Taper, Camber and Flexibility

The Violin Bow: Taper, Camber and Flexibility Te Violin Bow: Taper, Camber and lexibility Colin Goug Scool of Pysics and Astronomy, University of Birmingam, B13 9SN,UK a) (Dated: 11/22/1) An analytic, small-deflection, simplified model of te modern

More information

FIRST COMPARISON OF REMOTE CESIUM FOUNTAINS

FIRST COMPARISON OF REMOTE CESIUM FOUNTAINS 2001 EEE nternational Frequency Control Symposium and PDA Exibition FRST COMPARSON OF REMOTE CESUM FOUNTANS T. Parker*, P. Hetzel', S. Jefferts*, S. Weyers', L. Nelson", A. Bauc', J. Levine* *National

More information

The coin-through-the-rubber trick: an elastically stabilized invagination

The coin-through-the-rubber trick: an elastically stabilized invagination Te oin-toug-te-ubbe tik: an elastially stabilized invagination Fanlong Meng Institute of Teoetial Pysis, Cinese Aademy of Sienes Pone: 86-15001345869 flm@itp.a.n Masao Doi Cente fo Soft Matte Pysis and

More information

Non-contact Respiration Measurement Using Structured Light 3-D Sensor

Non-contact Respiration Measurement Using Structured Light 3-D Sensor SICE Annual Conference August -,, Akita Uniersity, Akita, Jaan Non-contact Resiration Measurement Using Structured Ligt -D Sensor Hirooki Aoki, Masaki Miyazaki, Hidetosi Nakamura, Ryo Furukawa, Ryusuke

More information

Paddy McGinty's Goat

Paddy McGinty's Goat 2 Paddy McGinty's Goat Taditional olk song a. Leslie Helett 5 q 15 4 J â ä he, sue o goat's milk, I mean to have me ill he ound it as a Bill. 9 A & # # no live all oh They â 1 Mis - te Pa - tick - ty,

More information

1 CLEANING THE FILTER.

1 CLEANING THE FILTER. Dul Select Pg. 1 CLENING THE FILTER. Te tier is protected y wire es filter tt ensures long-lsting nd troule-free opertion. Te filter sould e inspected periodiclly nd wsed t te eginning of every seson.

More information

TEMPERATURE FIELD ANALYSIS TO GASOLINE ENGINE PISTON AND STRUCTURE OPTIMIZATION

TEMPERATURE FIELD ANALYSIS TO GASOLINE ENGINE PISTON AND STRUCTURE OPTIMIZATION Journal of Teoretical and Applied Inforation Tecnoloy 0 t February 013. Vol. 48 No. 005-013 JATIT & LLS. All rits reserved. ISSN: 199-8645 www.jatit.or E-ISSN: 1817-3195 TEMPERATURE FIELD ANALYSIS TO GASOLINE

More information

The premium for organic wines

The premium for organic wines Enometrics XV Collioure May 29-31, 2008 Estimating a hedonic price equation from the producer side Points of interest: - assessing whether there is a premium for organic wines, and which one - estimating

More information

Steady State Numerical Analysis of a Joule-Thompson Cryocooler for Cryosurgical Probe

Steady State Numerical Analysis of a Joule-Thompson Cryocooler for Cryosurgical Probe Steady State Numerial Analysis of a Joule-Tompson Cryoooler for Cryosurgial Probe R. V. Topkar 1 and M.. Atrey 1 1 epartment of Meanial Engineering, Indian Institute of Tenology Bombay, Mumbai 400076 Te

More information

EXTERNAL SHOCKS AND POVERTY: HOW RECESSION IN EUROPE, JAPAN, AND CHINA AFFECTS THE INDONESIAN POOR

EXTERNAL SHOCKS AND POVERTY: HOW RECESSION IN EUROPE, JAPAN, AND CHINA AFFECTS THE INDONESIAN POOR External Socks And Poverty: How Recession In Europe, Japan, and Cina Affects Te Indonesian Poor 207 EXTERNAL SHOCKS AND POVERTY: HOW RECESSION IN EUROPE, JAPAN, AND CHINA AFFECTS THE INDONESIAN POOR Arief

More information

ESTIMATION OF OPTO-MECHANICAL PARAMETERS FOR CALIBRATION OF LASER SCANNERS

ESTIMATION OF OPTO-MECHANICAL PARAMETERS FOR CALIBRATION OF LASER SCANNERS ESTIMATIO OF OPTO-MECHAICAL PARAMETERS FOR CALIBRATIO OF LASER SCAERS Qing FU a, Hongchao FA b, *, Aoysis WEHR c, Uwe STILLA b a Institte of Geodesy and Geophysic, Vienna nivesity of technoogy, Gsshasst.7-9/E8-,

More information

Product Consistency Comparison Study: Continuous Mixing & Batch Mixing

Product Consistency Comparison Study: Continuous Mixing & Batch Mixing July 2015 Product Consistency Comparison Study: Continuous Mixing & Batch Mixing By: Jim G. Warren Vice President, Exact Mixing Baked snack production lines require mixing systems that can match the throughput

More information

OXYGEN CONTENT OF COMMERCIAL FROZEN ORANGE

OXYGEN CONTENT OF COMMERCIAL FROZEN ORANGE HGGART: OXYGEN CONTENT OXYGEN CONTENT OF COMMERCIAL FROZEN ORANGE CONCENTRATE R. L. HGGART Florida Citrus Commission Lake Alfred Incorporation air into citrus products du ring processing exposes tem to

More information