非能量费用影响下的冷热电联供产品成本符号(火用)分析

以符号(火用)经济学为基础构建了冷热电联供系统的产品成本分配模型.该模型同时考虑了能量费用和非能量费用,通过计算产品形成过程中的能量(火用)耗和非能量投入来获得最终成本.实例分析表明,该模型不仅能给出详细的各股(火用)流价值,而且能正确评估非能量费用的参与程度,从而客观反映了冷热电3种产品的经济成本.通过对大型冷热电联...

Symbolic exergoeconomics analysis of CCHP products cost including non-energy charge

An allocation model of CCHP(combined cooling heating and power) products cost based on the symbolic exergoeconomics method(SEM)are presented.The model takes into account both the non-energy and the energy cost,and obtains the final cost by calculating the exergy consumption and the non-energy cost input during formation of products.It is observed that the model can show the cost of each exergy flow and evaluate the participation degree of non-energy cost as well,which reflect the cold,heat and electricity product cost objectively.The comparison between two cold productions,one from macro-CCHP and the other from electricity chiller,shows that the former contributes to energy conservation and pollution reduction remarkably though its total cost is higher than the latter.Sensitivity analysis of coal price,depreciation period and loan interest rates shows that the main risks of cold product come from investment market,while the main risk of electricity product and heat product comes from raw material market.