供熱工況階躍變化對采暖房間熱舒適性的影響.pdf

1、河北工業(yè)大學碩士學位論文供熱工況階躍變化對采暖房間熱舒適性的影響姓名：周立彪申請學位級別：碩士專業(yè)：供熱、供燃氣、通風及空調工程指導教師：齊承英20081201供熱工況階躍變化對采暖房間熱舒適性的影響iiTHEIMPACTOFSTEPCHANGEDHEATSOURCEONINDOTHERMALCOMFTINAHEATINGROOMABSTRACTThehouseholdheatingmeteringsystemhasbecometheg

2、eneraltrendinChinanowtherearemanyheatingsystemscanbeusedfhouseholdcontrolathomeabroadthemostcommonistheadjustingcontrolsystemwiththermostaticvalveendattheendofthecentralheatingradiatinadditiongasfiredboilerheatingelectri

3、calheatingsystemsarealsomecommon.AccdingtoChinasheatinglevelheatinghabitsoftheresidentsChinasscholarsputfwardanewtypeheatingsystemofhouseholdmeteringachievedcertainresults.Thisissuebasesonthenewsystemmodeldoesresearchont

4、heairflowthetemperaturechangesthethermalcomftwhentheconditionofheatingstepchangesintheroom.Thisissueanalyzethethermalenvironmentthethermalcomftunderthenewsystemofregulationmodeusingsimulationexperimentalcombinedanalytica

5、lapproach.Experimentalpartofthepaperintroducedtheexperimentalsystemsequipmentthelayoutofthethermocouplethepositionchoiceoftheelectronictemperaturecontroldevice.Throughtheexperimentaldatacollectioninstrumentfathermocouple

6、tomonitthemeasuringpointthroughtheanalysistogetthetemperaturedistributiongraphofthelevelverticalcentralaxisintheroomtodopreliminaryanalysisonthetemperaturefieldchangeswhenwarmingcooling.Simulationpartoftheissueputfwardth

7、enumericalmethodsofheattransferprocessintheheatingroomdoesFLUENTsimulationonthenewsystemstepchangeinwkingconditionhasfoundthetemperaturevelocityfieldchangeswhenwarmingcoolingthesimulationresultsiscrect.Atthesametimewilld

8、ocombinedanalysisonsimulationsexperiments.Finallypaperanalyzedthetemperaturechangesthevelocitychangestheunevendegreesofwkingrangeintheroomftheimpactthermalcomftwhenwkingconditionstepchanged.Theresultsshowedthatinthenewcu