燃气轮机耦合聚光光伏光热冷热电联供系统性能评价与优化研究  

Performance Evaluation and Optimization of a Combined Cooling,Heating and Power System Based on Gas Turbine Coupled Concentrating Photovoltaic/Thermal

作　　者：楚尚玲 张衡[1,2] 陈海平[1,2] 高丹[1,3] CHU Shangling;ZHANG Heng;CHEN Haiping;GAO Dan(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China;Beijing Key Laboratory of Pollutant Monitoring and Control in Thermoelectric Production Process,North China Electric Power University,Beijing 102206,China;National Institute of Energy Development Strategy,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206 [2]华北电力大学热电生产过程污染物监测与控制北京市重点实验室,北京102206 [3]华北电力大学国家能源发展战略研究院,北京102206

出　　处：《动力工程学报》2024年第12期1948-1959,共12页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(52006063)。

摘　　要：基于天然气的稳定、连续、热值高、运输便捷和太阳能的清洁、环保、可再生的优势互补,提出了一种微型燃气轮机耦合低倍聚光光伏/光热(LCPV/T)的冷热电联供系统。建立了以一次能源节约率、二氧化碳减排率、年度总成本节约率和[火用]效率为目标的优化模型,并采用强度帕累托进化(SPEA-II)优化算法与优劣解距离法(TOPSIS)和权熵法结合的决策方法综合求解模型,获得Pareto最优解。结果表明:当LCPV/T面积为48.09 m^(3),LCPV/T体积流量为50 L/h,低温水源热泵容量为80.41 kW,高温水源热泵容量为250.03 kW,燃气锅炉容量为400.11 kW,余热回收锅炉换热效率为96.07%时,冷热电联产(CCHP)系统综合性能最好。优化后,系统全年平均一次能源节约率、二氧化碳减排率、年度总成本节约率和(火用)效率相较于优化前分别提升7.11%、6.46%、4.35%和5.64%。Due to the complementary advantages of natural gas,such as stability,continuity,high calorific value and convenient transportation,and solar energy,such as clean,environmental protection and renewable,a micro-gas turbine coupled low-concentrating photovoltaic/thermal(LCPV/T)CCHP system was proposed.An optimization model was established with the objectives of primary energy saving rate,carbon dioxide emission reduction rate,annual total cost saving rate,and exergy efficiency,and the strength Pareto evolutionary algorithmⅡ(SPEA-Ⅱ)optimization algorithm was used to solve the model comprehensively with the decision-making method combining the technique for order preference by similarity to an ideal solution(TOPSIS)and weight entropy method to obtain Pareto optimal solution.Results show that the comprehensive performance of the CCHP system is best when the LCPV/T area is 48.09 m^(3),the LCPV/T flow rate is 50 L/h,the capacity of the low-temperature water source heat pump is 80.41 kW,the capacity of the high-temperature water source heat pump is 250.03 kW,the capacity of the gas-fired boiler is 400.11 kW,and the heat transfer efficiency of the waste heat recovery boiler is 96.07%.After optimization,the average annual primary energy saving rate,carbon dioxide emission reduction rate,annual total cost saving rate and the exergy efficiency of the system improved by 7.11%,6.46%,4.35%and 5.64%compared with the pre-optimization,respectively.

关 键 词：聚光光伏光热 冷热电联供系统 性能评价 TRNSYS软件 多目标优化 

分 类 号：TK519[动力工程及工程热物理—热能工程]