新型户式空调动态冰蓄冷系统的实验研究  

Experimental Research of Home Dynamic Ice-storage System

作　　者：孔凡红[1] 郑茂余[1] 雷帮伟 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [2]中国交通第三航务工程勘察设计研究院,上海200032

出　　处：《建筑节能》2007年第11期7-10,共4页BUILDING ENERGY EFFICIENCY

摘　　要：由于民用建筑空调用电量峰谷差很大,小型冰蓄冷系统的研究使用取得了很大进展,但是仍存在一个严重的缺点影响它的广泛应用。提出了一种新型的冰蓄冷系统即户式盘管直接蒸发动态冰蓄冷系统,在盘管上加纵向肋片。对蓄冰、脱冰、储冰及融冰取冷工况进行实验研究,对各部分特性的实验数据进行分析并得出重要结论:周期性的蓄冰、脱冰避免了热阻的逐渐增加,致使蒸发温度降低;片状冰具有较大的表面积,热交换性能好,释冷速率高且稳定。本蓄冷系统占地面积小、结构简单紧凑、蓄冷取冷方便,在盘管上加纵向肋片的方法解决了盘管无法脱冰的难题,提高了制冷机组的性能系数和蓄冰率。The reduction in electricity consumption of ice-storage system in daytime leads to financial saving for building＇s owners and extension saving for power plant and national economy. Great advancements have been made in domestic ice-storage systems due to the bigger peak-to-valley difference of electricity using in residential buildings. However, there is still a serious shortcoming that affects their widespread applications. A new-style ice-storage system with a new method to remove ice was proposed, domestic direct evaporative dynamic ice-on-coil storage system that adds axial fins on coils. The processes of ice making, ice-moving, ice-depositing and ice-melting were studied and the experimental data were analyzed. The result shows that periodic ice-moving avoids the increased heat resistance that makes evaporating temperature decrease and due to a better heat exchanger ability caused by the larger surface area of sheet ice, the chilled water temperature was low and steady. This domestic ice-storage sys：：em is space-saved, compactly constructed and convenient to deposit and release cooling, and the axial fin-added coils can solve the problem of ice-moving and improve the COP of refrigerating unit and ice-packing factor.

关 键 词：直接蒸发动态冰蓄冷 纵向肋片 蓄冰率 脱冰 释冷速率 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]