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将传统的分供能源(SP)系统作为基准,以一次能源消耗量、年总费用和碳排放量构成的综合指标为优化目标,根据相关约束条件建立线性优化模型,分析评价了含有机朗肯循环(ORC)的冷热电联供(CCHP)能源系统在不同建筑类型的应用。对上海5种典型建筑进行研究,计算结果表明,相对于分供系统,商业和办公建筑等在使用CCHP系统后可提高能源系统的综合性能,但由于这种建筑的特点是热电比低、用电量大,内燃机在过渡季节会有大量过剩的余热无法合理利用,加入ORC系统后,能源系统的综合性能会有明显的改善;对于酒店和医院等热电比高、用热(冷)量大等特点的建筑,ORC系统的加入,对原有CCHP系统的综合性能影响较小。
Taking the traditional SP system as a benchmark, a comprehensive index of primary energy consumption, annual total cost and carbon emissions is taken as the optimization objective, a linear optimization model is established according to the relevant constraints, Cycle (ORC) CCHP energy system in different building types. The study on five typical buildings in Shanghai shows that the CCHP system can improve the overall performance of energy systems relative to sub-systems, commercial and office buildings. However, due to the low thermal-electric ratio Large amount of electricity, internal combustion engine in the transition season will have a lot of excess heat can not be reasonable use of ORC system, the comprehensive performance of energy systems will be significantly improved; for hotels and hospitals and other high thermal power, with large amount of heat And other characteristics of the building, ORC system to join, the original CCHP system has little effect on the overall performance.