輻射空調(diào)末端及CO-,2-熱泵的研究.pdf

1、Y1530514輻射空調(diào)末端及C02熱泵的研究STUDYoNRADIATIONTERMINALANDHEATPUMPOFCOz碩士學(xué)位論文學(xué)科專業(yè)：工程熱物理研究生：汪琳琳指導(dǎo)教師：馬一太教授李敏霞副教授天津大學(xué)機(jī)械工程學(xué)院二零零七年六月ABSTRACTInrecentyears，duetoincreasingofbuildingenergyconsumptiontheenvironmentalpollutionisalsogrowin

2、g，themainpartofwhichiStraditionalrefrigerantMoreover，withtheimprovementoflivingstandards，peopleproposehigherdemandaboutcomfortoftheACConsequentlyusingnewcomfortterminalofACandpollutionfreeandenergy—savingofACsystembecome

3、hotissuesTllisthesismainlystudiesradiationterminalandC02transcriticalwaterwaterheatpumpsystem，includingfloorheatingandcooledceilingBycombiningofnumericalsimulationandexperiment，itcanprovidevaluablebasisforapplicationNume

4、ricalsimulationusingCFDestablishesthephysicalandmathematicalmodelForgivinginitialandboundaryconditions，thisthesissimulatestemperature，velocityandlevelofcomfortOntheexperiment，itonlyconcernsthefloorheatingThroughcomparing

5、analysisresultsofsimulationandexperiment，itconcludestheadvantagesofradiationterminalandprovestheenergysavingandcomfortInadditiononthebasisofheattransfercharacteristicsofradiationterminal，italsosimulatesC02trans—criticalw

6、aterwaterheatpump，andanalysesoveralleffectofsystemaboutheatingandcoolingrespectivelyincludingtherelationshipsofcoPflowofwatersupplytemperatureofwatersupplyandheattransfercapacityItisconcludedthatC02transcriticalwaterwate

7、rheatpumpsystemusinginthismixed—radiationAC，bothforwinterandsummernotonlyprotectingenvironment，butachievinghighercoPsavesenergyAtlast，inthisthesissomeadvicesareputforwardforfurtherimprovementKEYWORDS：floorheating，cooledc