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浙江大学学报(工学版)
能源与机械工程     
联合循环机组热经济学H&S方法建模及性能评价
李鸿坤,陈坚红,盛德仁,李蔚
浙江大学 热工与动力系统研究所,浙江 杭州 310027
Thermoeconomic analysis and performance evaluation of gas steam combined cycle power plant based on H&S model
LI Hong kun, CHEN Jian hong, SHENG De ren, LI Wei
Institute of Thermal Science and Power Systems, Zhejiang University, Hangzhou 310027, China
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摘要:

为了更有效地对能量系统进行成本计算和性能分析,针对与负熵结合的E&S模型存在耗散组件的燃料产品定义在热力学范畴不合理以及对生产性组件进行双重惩罚的问题,建立基于H&S理论的燃气蒸汽联合循环热经济学成本模型.详述H&S模型的优势;分析组件的热经济学成本组成,提出耗散成本的概念;改进传统的相对成本差及经济系数评价指标,以某典型的9FA单轴燃气蒸汽联合循环机组为例,建立基于H&S理论的热经济学成本模型并进行评价指标的计算验证.结果表明,计算得到的组件生产效率合理,有效地解决了耗散组件的产品定义问题,公平地评价生产性组件的性能.性能评价结果认为,对于凝结水泵和燃烧室,需要减少由于不可逆引起的负熵成本;对于压气机和汽轮机组,改进的方向是降低投资成本.

Abstract:

Traditional E&S model could not define the fuel and product of dissipative components conceivably in thermodynamics viewpoint. The productive components were overcharged. A new model was established for gas steam combined cycle power plant based on structure theory of thermoeconomics and H&S theory in order to conduct the cost calculation and performance analysis of energy systems more reasonably and effectively. The composition of each component's thermoeconomic cost was analyzed and the concept of dissipative cost was proposed. The traditional evaluation indexes of relative cost difference and exergyeconomic coefficient were improved based on the H&S model. The typical 9FA single shaft gas steam combined cycle generating unit was used to verify the effectiveness and accuracy of the model. Results show that the structure theory of thermoeconomics based on H&S model can reasonably deal with dissipative components' definition of fuel and product. The productive components can be fairly evaluated. For the condensate pump and the combustion chamber, it is necessary to reduce negentropy cost caused by irreversibility. For the air compressor and the steam turbine, the direction of improvement is to reduce non energy cost.

出版日期: 2016-03-31
:  TM 611  
通讯作者: 陈坚红,男,副教授. ORCID: 0000 0003 0957 6914.     E-mail: power@zju.edu.cn
作者简介: 李鸿坤(1991-),男,硕士生,从事电厂故障诊断和热力系统优化的研究. ORCID: 0000 0001 7094 4793. E-mail:lhk@zju.edu.cn
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李鸿坤,陈坚红,盛德仁,李蔚. 联合循环机组热经济学H&S方法建模及性能评价[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.01.017.

LI Hong kun, CHEN Jian hong, SHENG De ren, LI Wei. Thermoeconomic analysis and performance evaluation of gas steam combined cycle power plant based on H&S model. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.01.017.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.01.017        http://www.zjujournals.com/eng/CN/Y2016/V50/I1/116

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