Discussion on Boiler Efficiency Correction Method with Low Temperature Economizer_Air Heater System

2017 International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Ke, Liu^1 ; Xing-Sen, Yang^1 ; Fan-Jun, Hou^2 ; Zhi-Hong, Hu^1

State Grid Shandong Electric Power Research Institute, Jinan

250003, China^1

Zhong Shi Yi Tong Group, Jinan

250003, China^2

关键词: Boiler efficiency;    Condensed water;    Correction method;    Exhaust gas temperatures;    Flue gas temperatures;    Gas temperature;    Low temperatures;    Reference values;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/63/1/012002/pdf
DOI  :  10.1088/1755-1315/63/1/012002

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper pointed out that it is wrong to take the outlet flue gas temperature of low temperature economizer as exhaust gas temperature in boiler efficiency calculation based on GB10184-1988. What's more, this paper proposed a new correction method, which decomposed low temperature economizer-air heater system into two hypothetical parts of air preheater and pre condensed water heater and take the outlet equivalent gas temperature of air preheater as exhaust gas temperature in boiler efficiency calculation. This method makes the boiler efficiency calculation more concise, with no air heater correction. It has a positive reference value to deal with this kind of problem correctly.