AMMONIA IN SMALL CAPACITY REFRIGERATION AND HEAT PUMP SYSTEMS
Ammonia has been used as refrigerant in large systems continuously since the beginning of the era of refrigeration. In small systems, it has hardly been used at all since the introduction of the halogenated hydrocarbons around 1930. Lately, with the search for alternatives with less influence on global warming, the use of ammonia in small systems has come into focus again.In the present paper, we will describe the work done at the Royal Institute of Technology with the aim of developing a prototype of a domestic water to water heat pump with a heating capacity of around 6 kW. It has been shown that such a system can be designed to operate with less than 100 g of ammonia. The main obstacle for introducing this technology commercially is the lack of components. Particularly, there seem to be no hermetic or semi-hermetic compressor available in this size range.
B.Palm
Royal Institute of Technology, Department of Energy Technology, SE 100 44 Stockholm, Sweden
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）