水環(huán)熱泵在夏熱冬暖地區(qū)應用的節(jié)能性研究.pdf

1、廣州大學碩士學位論文水環(huán)熱泵在夏熱冬暖地區(qū)應用的節(jié)能性研究姓名：白貴平申請學位級別：碩士專業(yè)：供熱、供燃氣、通風及空調(diào)工程指導教師：冀兆良20050428AbstractAtpresent，moreandmoreaaenfionshavebeenpaidtoenergyefficiencyinbuidings，withtheenergyefficiencyofairconditioningasitsfocalpiontComparedw

2、ithconventionalcentralairconditioningsystem，therehasbeenalackofcomparablydeeperresearchintheapplicationofthewater—loopheatpumpsystemtWtJWSforshort)andinitsenergyefficiencyinSummerHotandWinterWarmareasAccordingtosomeexper

3、ts，WIAtPSisonlyapplicabletomildareas；itdoesnothaveanyenergyefficiencyinsoutherncities，suchasGuangzhouButWUPSiswidelyappliedinSummerHotandWinterWarmareasofChinainrecentyears，anditsgreatpotentialshavebeenmanifestedCompared

4、withconventionalcentralair—conditioningsystem，canitreallysavcmoreenergyinsouthernChinaTowardthisissue，thepresentpaperpresentsitsstudiesonandanalysisoftheenergyefficiencyandeconomiccharacteristicsoftheWLHPSwhenitisusedint

5、heseareasInthispapeLtheperformanceoftheunitofWLHPSistestedwithenthalpydifferencemethodinenthalpy—differencelab，andthedegreetowhichsomefactorsaffecttheoperatingefficiencyofWLHPSisanalysed，suchastheflowrateofcoolingwaterth

6、etemperatureofcoolingwatertheairwetbulbtemperature，andtheairflowrateBasedonthecalculationandanalysesofloadcharacteristicofthreetypicalbuildings，asimplifiedcalculationmodelofbuildings’annualenergycomsumptionisestablished，

7、andtheenergyefficiencyandeconomicsoftheWLHPSareanalysedqualitativelyandquantitavelyr111eenergyefficiencyandeconomicsofairconditioningsysternsarecvaluatedbytwofoetorsthataregiveninthepaper：averageenergyconsumptionvalue(AE

8、cv)andenergyeconomycoefficient(EEC)AndhowtodeduceandcalculateAECVandEECisalsopresentedinthepaperTIleresultsofthestudyandanalysisshowthatthefirstinvestmentofWLHPSis507％higherthanofconventionalcentralairconditioningsystem，

9、buttheenergyconsumptionis17％lowerthanthatofthelatceLInthewhole】irespancycletheannualavergeinvestment(includingfimtinvestmentandoperatingcost)ofWLHPSis1145％lessthanthatofconventionalcentralairconditioningsystemTheenergyef

10、ficiencyofWu口SvariesaccordingtothetypesofdifferentbuildingsComparedwithconventionalcentralair—conditioningsystem，thelongertimeinlowcoolingloadrateWLHPSoperates，themoreobviouseriergyefficiencyofWIMPSshowsIncontrastwithcon

11、ventionalcentralairconditioningsystem，WLHPScannotsaveenergywhenitsCOPislowerthan395；butwhenitsCOPisbetween395and439，ithassomeenergypotential，butnoteconomical；andwhenitsCOPishigherthan439itcannotonlYsaveenergybutalsoecono

12、micalAsthedevelopmentoftechnologytheCOPoftheunitinWLHPSisgenerallyover4亂So、WU皿Sisworthbeingappliedwidelyinsomebuildingsinsomeareas試mtheclimateofhotsummerandwarmwinterandinthesituationunderwhichtheindoornoiseisnotneededto