基于全生命周期评价的冷热电联供系统优化研究  

RESEARCH ON OPTIMIZATION OF COMBINED COOLING,HEATING AND POWER SYSTEM BASED ON FULL LIFE CYCLE EVALUATION

作　　者：许小刚[1,2] 嵇晓鹏 王惠杰 Xu Xiaogang;Ji Xiaopeng;Wang Huijie(Department of Power Engineering,North China Electric Power University,Baoding 071003,China;Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology,Baoding 071003,China)

机构地区：[1]华北电力大学动力工程系,保定071003 [2]河北省低碳高效发电技术重点实验室,保定071003

出　　处：《太阳能学报》2024年第5期360-368,共9页Acta Energiae Solaris Sinica

摘　　要：天然气与太阳能互补是提高能源利用率和实现节能减排的有效方法,该文构建一种光-气-储互补的冷热电联供(CCHP)系统。基于全生命周期理论,以一次能源节约率、总污染物减排率为目标函数,建立冷热电联供系统优化模型,应用遗传算法对系统变工况运行下的容量配置进行优化;将物质回收阶段纳入全生命周期评价,并在运输阶段考虑燃料运输。结果表明:经优化后,CCHP系统电跟随(FEL)策略可实现较好的节能减排效益。分供(SP)系统在物质回收阶段对环境的影响微乎其微,CCHP系统燃料运输能耗量远低于SP系统。The complementarity between natural gas and solar energy is an effective way to improve energy efficiency and achieve energy conservation and emission reduction.This article constructs a light-gas-storage complementary combined cooling,heating and power(CCHP)system with complementary Based on the whole life cycle theory,taking the primary energy saving rate and total pollutant emission reduction rate as the objective functions,the optimization model of the combined cold,heating and power system is established,and the genetic algorithm is applied to optimize the capacity configuration under variable working conditions of the system.Incorporate the material recovery phase into the life cycle assessment and consider fuel transportation during the transportation phase.The results show that after optimization,the electric following(FEL)strategy of CCHP system can achieve better energy saving and emission reduction benefits.The separated production(SP)system has little environmental impact during the material recovery stage,and the CCHP system consumes much less fuel transportation than the SP system.

关 键 词：冷热电联供系统 生命周期评估 能源消耗 污染物排放 

分 类 号：TK019[动力工程及工程热物理]