采暖热水炉热效率不确定度的分析  

Analysis on Uncertainty in Thermal Efficiency of Gas-fired Heating and Hot Water Boiler

作　　者：张华[1,2] 刘文博[1,2] 何贵龙[1,2] 辛立刚[1,2] 牛犇[1,2] 陈程[1,2] 

机构地区：[1]国家燃气用具质量监督检验中心,天津300384 [2]中国市政工程华北设计研究总院有限公司,天津300074

出　　处：《煤气与热力》2016年第1期37-42,共6页Gas & Heat

摘　　要：对燃气采暖热水炉额定热效率进行不确定度评定和分析。供回水温差的测量不确定度对热效率标准不确定度影响最大。燃气采暖热水炉和燃气热水器的热效率标准不确定度的差异,主要由测试工况下不同的供回水温差造成。The uncertainty in rated thermal efficiency of gas-fired heating and hot water boiler was evaluated and analyzed. The uncertainty in measurement of temperature difference between the supply and return water has the greatest influence on the uncertainty in thermal efficiency standard. The difference of the uncertainty in thermal efficiency between gas-fired heating and hot water boiler and gas instantaneous water heater is mainly caused by different temperature difference between the supply and return water under the test conditions.

关 键 词：燃气采暖热水炉 热效率 不确定度 燃气热水器 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程]