ETLURCALWERMETALLURGICALPOWER55ls2llfI5Ill130th(271104)130thTK2298B1006-67(2012)04005502EffectofVaryingWaterSupplyTemperatureof130thGas-firedBoileronExhaustGasTemperatureLIUJun-ming,LIUJin-jinXIEHua-dong,ZHOULeilzHIronSteelGroupCoLcdwu,Shandong271104,dAbstractTakingforexamplethe130thgas-firedboilerofLaiwuIron&SteelGroupCo,theeffectofwatersupplytemperatureOnexhaustgastemperatureoftheboilerWagbrieflyintroducedTherelationshipbetweenwatersupplytemperatureandboilerthermalefficiencyWaspresentedKeywords]watersupplytemperatureexhaustgastemperaturethermalefficiency185lO05l130th2130th1023'Lp()J=-t(I)v-()hAtr=oAtw=Ob,(2)(2)(1)fi0x(1--ator)++xaqo,(3)()0t-t,k-()tk()(3)dtqkk25302012456METALLURGICALPOWER1524050(3)k?3130th111100100oC102oC(54)__14(1)(2)(3)[11995[M1994[31()[M200320120228(1985)200720111205(1965)