地源热泵空调系统制冷工质替代研究
摘要:从臭氧层破坏和全球温室效应等角度出发,通过对工质替代的意义较全面的分析,提出了替代工质的筛选原则,并建立制冷剂综合性能评价指标体系,同时分析适用于地源热泵的HFC 替代工质.
关键词:空调系统;替代制冷工质;指标体系
中图分类号:TU 82 文献标识码:B 文章编号:100627140 (2004) 0220072204
Research on Alternative Refrigerant in GSHP Air Conditioning Units
GUO Hui , HUANG Hua2jun , PENGMeng2long
(School of Traffic &Transportation Engineering ,Central South University ,Changsha 410075 ,China)
Abstract :According to Montreal Protocol Amendment , refrigerants R - 22 still used in air conditioning systems will be universally banned by 2030 for their ozonosphere depletion and global greenhouse effect . Hence , research on refrigerant alternative for GSHP units is too urgent to be delay. Through analysis of the meaning and prospect of refrigerant alternative , the filtrating principle of refrigerant alternative is put forward , and index system of evaluation to performance of alternative refrigerants is dealt with , and finally several ideal alternative refrigerants for GSHP units are analyzed.
Key words :air conditioning system; refrigerant alternative ; index system of evaluation
地源热泵是以大地为热源对建筑进行空调的技术,工作条件优于常规空调机组和风冷热泵机组,是建筑空调系统冷热源发展的方向. 但是,该制冷系统制冷剂R222 对大气臭氧的消耗作用和存在温室效应,根据《蒙特利尔议定书》修正协议,即将在全球范围内禁用. 因而,地源热泵空调系统制冷剂R222 的替代研究不容延缓. 目前R222 替代工质的研究主要集中在对基本热物性和循环性能方面,结合制冷系统的替代研究很少. 本文通过对制冷剂替代分析,提出地源热泵机组替代工质的筛选原则,分析了替代工质的各项性能评价指标,并按照递阶层次结构建立制冷剂性能评价指标体系.
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