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本文应用热力学经济分析方法,即热力学第二定律分析法和经济分析相结合的方法,给出了综合考虑能量消耗费用和设备投资费用的,并直接以经济费用表示的供热系统的锅炉房系统、供热管网系统、热用户系统的费用衡算方程,以及各系统进出口热流(火用)、物质(火用)的(火用)单价的确定方法。为供热系统的评价和分析提供了一种既能考虑能量在质量上的差异,又能考虑经济费用的新方法,也为供热系统的优化设计提供了理论依据。
This article applies the thermodynamic economic analysis method, that is, the combination of thermodynamic second law analysis method and economic analysis, and gives a boiler room system that comprehensively considers the energy consumption costs and equipment investment costs, and directly represents the heating system with the economic cost. The cost-accounting equations for heating and distribution network systems, thermal user systems, and methods for determining the exergy prices of the heat flow (exergy) and material (exergy) of each system’s inlet and outlet. For the evaluation and analysis of the heating system, it provides a new method that can not only consider the difference in energy quality, but also consider the economic cost, and also provides a theoretical basis for the optimization design of the heating system.