根据德国标准以及不确定度分析原理，采用焚烧炉-余热锅炉效率计算方法，构建焚烧炉-余热锅炉效率不确定度计算模型。以某垃圾处理量为935 t/d的焚烧炉-余热锅炉为研究对象，分析焚烧炉-余热锅炉毛效率及燃料效率，并对焚烧炉-余热锅炉效率测试的不确定度进行了评定。结果表明：在进行垃圾焚烧电站锅炉设计及性能试验时，建议采用焚烧炉-余热锅炉毛效率作为设计及评定依据；省煤器出口烟气体积流量、炉渣热灼减率、过热蒸汽流量、湿炉渣量占垃圾处理量百分比和省煤器出口烟气温度5个参数的测量不确定度所占焚烧炉-余热锅炉效率不确定度权重值为98.4%，对试验不确定度影响较小的参数，可以降低测试精度要求，以提高测试效率。

According to the German FDBR standard and the principle of uncertainty analysis,the calculation method of furnaceboiler efficiency was introduced,and the calculation model of furnaceboiler efficiency uncertainty was constructed.Taking a certain furnaceboiler with 935 t/d waste treatment capacity as the research object,the gross efficiency and fuel efficiency of furnaceboiler were analyzed,and the uncertainty of efficiency test of furnaceboiler was evaluated.The results show that the gross efficiency of furnaceboiler should be used as the basis of the design and evaluation in the boiler design and performance test of municipal solid waste (MSW) incineration power plant.The measurement uncertainty of flue gas volume flow at economizer outlet,loss of ignition (LOI) of slag,superheated steam flow,percentage of wet furnace slag in garbage treatment capacity and flue gas temperature at economizer outlet accounts for 98.4% of the uncertainty weight value of furnaceboiler efficiency.The parameters that have little influence on the uncertainty of the test can reduce the testing accuracy requirements and improve the testing efficiency.

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