空气载能空调房间输入(火用)算法及系统(火用)成本应用分析

2019-07-19 06:12龚光彩尹丹
湖南大学学报·自然科学版 2019年1期
关键词:经济性

龚光彩 尹丹

摘   要:通过分析辐射孔板的传热特性,结合金属辐射板和对流型空气处理末端的(火用)分析方法,提出了空气载能辐射空调房间的输入(火用)计算方法,并且基于(火用)成本分析法,建立了空气载能辐射空调系统的(火用)成本分析模型.在满足人体热舒适要求的前提下,以单位(火用)成本为评价指标,对空气载能辐射空调系统、毛细管辐射空调系统和分体式空调加地暖系统进行(火用)成本分析.研究发现:运用于办公建筑时,毛细管辐射空调系统的各单位(火用)成本高出空气载能辐射空调系统1~3倍;运用于住宅建筑时,分体式空调加地暖系统全年的产品(火用)单位成本为空气载能辐射空调系统的1.2倍.研究表明空气载能辐射空调系统的总体(火用)经济性更好,该研究结果对空气载能辐射空调后期在工程上的实际推广应用具有一定的指导意义.

关键词:空气载能;(火用);(火用)成本分析法;(火用)经济性

中图分类号:TU831                              文献标志码:A

文章编号:1674—2974(2019)01—0133—08

Abstract: Based on the heat transfer process of orifice plate and the exergy analysis method of traditional mental radiant panel and convective air-conditioning terminal, the algorithm of room input exergy for air carrying energy radiant air-conditioning system(ACERS) was proposed. The exergy cost analysis model of ACERS was established by exergy cost analysis method. The unit exergy cost of three radiant air-conditioning systems including ACERS, capillary radiant air conditioning system and a combined system of split air conditioning with floor radiant air conditioning,was compared under the premise of thermal comfort. The results show that the unit exergy costs of capillary radiant air conditioning system are 1~3 times higher than that of ACERS in office buildings. The unit product exergy cost for the year of a combined system of split air conditioning with floor radiant air conditioning is 1.2 times higher than that of ACERS in residential building. It is found that the overall exergy economic performance of ACERS is superior to the other two radiant air-conditioning systems, which is of great significance for future engineering application of ACERS.

Key words: air carrying energy;exergy;exergy cost analysis;exergy economic

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