热管技术回收低温烟气余热的经济性分析和计算

针对酸露点附近的换热问题，采用热管换热技术来减低排烟温度，建立换热和经济性评价的数学模型，计算不同排烟温度下的设备投资和经济收益，并对投资回收期及新增部分经济指标等参数进行分析和讨论。提出一种新的经济性指标来考虑设备的经济性．可为不同排放温度下余热回收设备的选择和设计提供参考。

Economic Analysis and Calculations of Low-Temperature Gas Waste Heat Recovery by Heat Pipe Technology

Considering the heat transfer problems near the acid dew point, the heat pipe heat exchange technology was recommended to reduce the exhaust gas temperature. The mathematical models of heat transfer and economic evaluation, which could be used to calculate the equipment investment and economic benefits under the different exhaust gas temperatures, were established. Additionally, the parameters such as the payback period and the economic indicator of new adding equipment, and so on, were analyzed and discussed. A new economic indicator was introduced to evaluate the equipment economy, which could provide reference for the selection and design of exhaust gas heat recovery equipments under different exhaust gas temperatures.