基于反平衡计算的燃煤土暖气热效率评估及改进研究

The improvement for rural area heating based on counter balance thermal efficiency

根据锅炉反平衡热效率计算原理,对家用燃煤土暖气锅炉热效率损失原因进行了评估,给出了应用在燃煤土暖气上的反平衡热效率计算公式。以某45k W家用燃煤土暖气锅炉为例,对其热效率进行了定量计算,讨论了影响热效率的几个设计因素。结果表明:提高燃煤土暖气锅炉热效率应从排烟温度、散热面积、燃料用量和漏煤比率等4个方面加以改进。

Using the theory of counter balance thermal efficiency which is designed mainly for industrial boiler,do some research on the heating system in rural area with showing some reasons for thermal efficiency loss,providing with formulas about rural heating system thermal efficiency calculation.Based on a certain 45 kW rural area heating system,test its thermal efficiency and analysis several design factors which influence its efficiency.The results shows that there are four key factors decide the heating thermal efficiency,which are exhaust gas temperature,cooling area,the amount of fuel ycoal leakage rate respectively.