[问]:国外常用的锅炉热效率计算方法与我国常用的方法有何不同?两者之间怎样进行换算? [答]:锅炉热效率的定义是工质的吸热量与燃料带入炉内的热量之比。国内在计算燃料所带入炉内的热量时,是按燃料的工作质低位发热量Q_D~Y为基准进行的。而国外则按燃料的工作质高位发热量Q_G~Y为基准进行。国外锅炉制造厂所提供的锅炉热效率的值有两个,一个是计算热效率,另一个是考 [Q]: What is the difference between the commonly used calculation methods of boiler thermal efficiency in foreign countries and the methods commonly used in China? How to convert between the two? [A]: The definition of boiler thermal efficiency is that the heat absorption of working fluid and fuel are brought into the furnace The ratio of calories. Domestic calculation of fuel into the furnace heat, according to the fuel quality of work low heat Q_D ~ Y as a benchmark. While foreign countries are based on the work of high-quality fuel heat Q_G ~ Y as a benchmark. There are two boiler thermal efficiency values ​​provided by foreign boiler manufacturers, one is the calculation of thermal efficiency, the other is the test