摘要
依据制冷主机系统寿命周期费用最小的原则,建立了考虑全年供冷负荷变化的区域供冷系统中不同类型制冷主机之间设计容量分配的优化模型.实例计算结果表明:在电价和蒸汽价格确定的情况下,对于冷负荷一定、采用电制冷主机和吸收式制冷主机作为冷源的某区域供冷系统,两种制冷主机之间的设计容量分配存在最优值;电价与蒸汽价格的变化均影响制冷主机设计容量的优化分配,但电价的影响很大,蒸汽价格的影响相对较小;蒸汽的供应量是否有限制,既影响制冷主机设计容量的优化分配,又影响区域供冷系统中制冷主机系统的寿命周期费用.
According to the principle of minimizing the life cycle cost of chiller systems, this paper proposes an optimal model considering the variation of all-year cooling load to distribute the design capacity among different types of chillers in the district cooling system. The results of a case study show that （ 1 ） for a district cooling system with both the electrical and the absorption chillers as the cooling sources, if the electricity and steam prices are both determinate and the cooling load are constant, there is an optimal distribution of design capacity between the two kinds of chillers; （2） both the electricity price and the steam price influence the optimal distribution of design capacity, especially the former; and （3） the limitation of steam supply is an important factor affecting the optimal distribution of design capacity and the life cycle cost of chiller systems.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第2期117-121,127,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
广东省自然科学基金资助项目(06300189)
