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化工学报  2012 

喷淋溶液对无霜空气源热泵系统特性的影响

DOI: 10.3969/j.issn.0438-1157.2012.z2.036, PP. 193-198

Keywords: 空气源热泵,溶液喷淋,无霜

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Abstract:

基于对空气源热泵结霜机理的研究,从抑制结霜的两个条件出发,提出了无霜空气源热泵新系统。选取适用于该系统的喷淋溶液,搭建了实验台。通过实验验证,证明此系统具有可行性。"防霜"模式运行时,送风温差比常规系统高1.5℃,供热量高6%,且送风参数稳定,运行过程中,压缩比基本保持不变,压缩机和系统稳定性高。选用甘油水溶液作为喷淋溶液时,为保证防霜效果,甘油质量分数应在31%~65%;单位迎风面积喷淋流量应在0.53~0.64t·(h·m2)-1。

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