热经济学中计价方法的探讨  

Research About Cost Accouting Strategies for Thremodynamics

作　　者：孙家宁[1] 

机构地区：[1]华南理工大学传热强化与过程节能教育部重点实验室,广东广州510640

出　　处：《能源技术》2003年第3期93-96,99,共5页Energy Technology

基　　金：广东省自然科学基金资助项目 ( 990 6 38)

摘　　要：经济学是以为核算对象的成本核算方法 ,以最小产品成本为目标函数 ,结合一定的经济学评价指标 ,对能量系统进行分析、评价 ,得到改进的途径。文章基于成本方程 ,对费用方程进行了讨论 ,明确了过程损的计价方法 ,提出了有效的经济学系数。用能级概念可以更为全面的描述能流的品质 ,能级匹配是减小系统损失的有效途径。文章将能级的概念引入热经济学计价体系 ,提出了基于能级分析的计价策略和评价指标。以联产模型为实例 ,进行了讨论。Exergy serves as a basis in the costing process when costs are assigned to energy carries in thermoeconomic, which takes minimum cost of products as objective function, aided by some exergoeconomic parameters .In this article a more scientific cost accounting method for exergy destruction was given by an analysis of the exergoconomic cost equation. An exenergy flow could be described accurately not only by exergy but also energy level, which give an effective way to decrease exergy destruction of an energy system when energy level matching principle is carried out. Based on the energy level concept, a new accounting strategy was set up in this paper, considering energy used more rationally, When the energy level of a supplied exergy flow is increased or decreased via an energy transform unit of an energy system, the cost basis is formed Some exergoeconomic parameters were used to evaluate an energy system, taken an simplified cogeneration system as the example to illustrate the proposed accounting methods and the parameters mentioned above. This paper is written mainly for introducing energy level concept to thermoecnonics and to get a new accounting strategy and some effective exergoeconomic parameters, so the applied example was simplified and classical.

关 键 词：能量系统 YONG经济学 Yong费用方程 能级 热电联产 

分 类 号：TK123[动力工程及工程热物理—工程热物理]