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:100520930(2006)0320368207:TK16:A:2005212228;:2006209213:(1962),,,().,(,,100084):,.:,43%52%;,,116;,,011m3/h;,.:;;;;,,.,..,,,20002004,482108m3169108m3[1],.,2004114%[1,2],.20042005,,,..,30%50%[3].200427%,45108m3,200321%,51108m3[1].,,,,,.,,,.,.,[4]14320069JOURNALOFBASICSCIENCEANDENGINEERINGVol.14,No.3September2006,,;Rahima[5].,,,,.1111:,(),.112,1Fig.1Thepictureofthehomegascookstovetested1,,.1,JZ22T20/T22/T22B,416kW,410kW,.,,20mm016mm;,22mm4mm);,26mm116mm.113:(0100);;,B,4m3/h,0104m3/h,3%.114,200512.1618.,,.215kg,,,..,,,100.,.115,,5963No.3:2Fig.2Relationshipcurvesbetweenthermalefficiencyandflowrateofnaturalgasforthegascookstove,15.12,,1,2;35,,3,5,4.,4,,,2.,,.2U2200Pa;HP26890N,(,0)36103MJ/m3,,3419MJ/m3;,96%,91%,,91%;:119/m3;0148/.5060%[6],,45%.:=(t2-t1)CpGw/(QdGg)(1):t1,;t2,100;Cp:4118kJ/(kg);Qd,3419103kJ/m3;Gw:215kg;Gg,m3.:D=(t2-t1)CpGw/(3600d)(2):D,kWh;d,0191;(1).():Ggd=3600D/(fdQd)(3):fd,0145;(1)(2).132;3,3;4.073Vol.131Table1Thetestresultsofrelationshipbetweenthermalefficiencyandflowrateofnaturalgasforasmallwaterboiler()12345/1514141414/min5413331223121311915/m30104501047010530105801072/m3/h0105001085011370126601455/%56165418481644143518/01090109011001110114//01660168017601841104//017201750184019211142Table2Thetestresultsofrelationshipbetweenthermalefficiencyandflowrateofnaturalgasforapressurecooker()12345/1515131414/min6911391222101111915/m30105601055010570106501071/m3/h0104901084011550135101448/%45144613451739163613/01110110011101120113//01820180018101941102//019001880190110311133Table3Thetestresultsofrelationshipbetweenthermalefficiencyandflowrateofnaturalgasforastir2friedhollowware()12345/1415151515/min5815281018101211814/m30104801043010470104801063/m3/h0104901092011570123801450/%53165912541253104014/01090108010901090112//01690163016901700192//0176016901760177110133112:.,,,.,,,;,173No.3:3Fig.3Relationshipcurvesbetweenthermalefficiencyandwatertemperatureforpressurecooker,2,011m3/h,.,,,;,.,1160,1131147.3124Fig.4Relationshipcurvesbetweentimetoboilwaterandflowrateofnaturalgas:48%,43%,52%.2,,,,.,,,,;,,,,.,,,9.3133,.7,,.3,,,,4050,,,.,,,,,,,,,,.,60,.,,23,30%.314,37%,,,.40%,,,.13,5,.3154,,.011m3/h,273Vol.13,012m3/h,;,,,.3164352%,[7](55%)[829](5560%).:550,;(414KW),32cm12kg.:,;;26cm;13kg.,,.,()3040%,,.4(1),,4352%,3040%,,,17%;(2),,;,,011m3/h,;,1160,113,1147.,,,25%,67,;(3)011m3/h,,012m3/h,.,;(4),,,,;,,.[1].(2005)[M].:,2005NationalBureauofStatistics.Chinastatisticalyearbook(2005)[M].Beijing:ChinaStatisticalPress,2005373No.3:[2].2004[J].,2005,13(7):14220WangLimin.FocusontheenergymarketofworldandChina[J].InternationalOilEconomy,2005,13(7):14220[3],,,.2020[M].:,2004WangJinnan,CaoDong,YangJintian,etal.EnergyandenvironmentChina2020[M].Beijing:ChinaEnvironmentalSciencePress,2004[4],,.[J].,2004,23(1):59266LiuJie,LiYongan,LiuXueting.Testmethodofheatingefficiencyofhomegascookstoves[J].ResearchandExplorationofLaboratory,2004,23(1):59266[5]RahimaAkterLucky,IjazHossain.EfficiencystudyofBangladeshicookstoveswithanemphasisongascookstoves[J].Energy,2001,26(3):2212237[6].2[M].:,2003YangSunhu.Generatingelectricityequipmentofgas2steamcombinationcycleanditsoperation[M].Beijing:ChinaelectricityPress,2003[7]GB1641021996.[S]GB1641021996.Homegascookstoves[S][8].[M].:,1999YuanGuoting.Architecturegasdesignhandbook[M].Beijing:ChinaArchitectureIndustryPress,1999[9].[M].:,2000XiangYouqian.Commondatahandbookofgasandthermalengineering[M].Beijing:ChinaArchitectureIndustryPress,2000ThermalEfficiencyTestofaHomeGasCookstoveinActualConditionLIZhaojian,JIANGYi(DepartmentofBuildingScience,SchoolofArchitecture,TsinghuaUniversity,Beijing100084,China)AbstractSometestsweremadeinordertofindouttherelationbetweentheflowrateofnaturalgasandthethermalefficiencyofhomegascookstove.Theinfluencesofthewatertemperatureandthesizeofpantothethermalefficiencyhavealsobeentested.Theresultsshowthattheaveragethermalefficienciesofthegascookstoveinboilingwatervaryfrom43%to52%.Theflowrateofnaturalgashasamoresignificanteffectonthethermalefficiencyinasmallerpanthaninalargerpan.Thelowertheflowrateofnaturalgasis,thehigherthethermalefficiencyofthesmallpanis.Theratioofthemaximumthermalefficiencytotheminimumthermalefficiencyis116forthesmallpan.Therelationshipcurvebetweenflowrateofnaturalgasandthethermalefficiencyofbigpanissaddleshapewiththemaximumofthermalefficiencyataflowrateofnaturalgasof011m3/h.Theprimaryenergyconsumptionofboilingwaterwithagascookstoveinbigfireconditionismorethanwithaelectricitywaterboiler.Keywords:homegascookstove;combustion;thermalefficiency;test;energysaving473Vol.13