基于热经济学代数模式的太阳能-燃煤机组性能分析  

Performance Analysis of Solar-aided Coal-fired Power Plant based on the Algebraic Mode of Thermoeconomics

作　　者：韩中合[1] 肖坤玉 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,保定071003

出　　处：《汽轮机技术》2016年第1期5-9,共5页Turbine Technology

基　　金：中央高校基本科研业务专项资金项目(13XS38)

摘　　要：采用热经济学的代数模式,以太阳能辅助某600MW超临界燃煤机组为例。建立了太阳能-燃煤机组系统性能分析评价模型,以系统中的损率、效率和热经济学参数为指标,对太阳能-燃煤机组系统的耗散状态进行研究,并分析了太阳能设计辐射强度以及太阳能单价对该机组发电成本和太阳能集热系统热经济系数的影响,将相关数据绘制成曲线图加以分析。结果表明,引入太阳能辅助能源后,机组的效率为42.51%,煤耗从281.7g/(k W·h)降至268.5g/(k W·h),发电成本降为0.3449元/(k W·h),为太阳能-燃煤机组系统的应用提供了科学性的理论支持。The algebraic mode of thermoeconomics is applied to hybrid system which is integrated concentrated solar heating system with a 600MW supercritical coal-fired power plant. Models which can evaluate the performance of solar aided coalfired power generation system were built, the system performances were analyzed with exergy loss, exergy efficiency and the thermoeconomics parameters as indexes and the influence of the radiation intensity and the unit cost of the solar collector field on the generation cost of the power plant and the thermoeconomics coefficient of the solar system were calculated and analyzed. The results showed that the total exergy efficiency is 42.51%, the total coal consumption decreases from 281.7 g,/（kW h） to 268.5 g/（ kW h） and generation cost is 0. 3449 yuan/（ kW h）. The results can be a scientific theoretical support for the application of solar aided coal-fired power generation system.

关 键 词：太阳能 热经济学 炯损率 炯经济系数 

分 类 号：TK919[动力工程及工程热物理]