Technical and Economic Working Domains of Industrial Heat Pumps: Part 2 - Ammonia-Water Hybrid Absorption-Compression Heat Pumps

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Abstract

The ammonia-water hybrid absorption-compression heat pump (HACHP) is a relevant technology for industrial heat supply, especially for high sink temperatures and high temperature glides in the sink and source. This is due to the reduced vapour pressure and the non-isothermal phase change of the zeotropic mixture, ammonia-water. To evaluate to which extent these advantages can be translated into feasible heat pump solutions, the working domain of the HACHP is investigated based on technical and economic constraints. The HACHP working domain is compared to that of the best possible vapour compression heat pump with natural working fluids. This shows that the HACHP increases the temperature lifts and heat supply temperatures that are feasible to produce with a heat pump. The HACHP is shown to be capable of delivering heat supply temperatures as high as 140 XC and temperature lifts up to 60 K, all with economical benefits for the investor.
Original languageEnglish
Title of host publicationProceedings of 11th IIR Gustav Lorentzen Conference on Natural Refrigerants
Number of pages8
PublisherChinese Association of Refrigeration
Publication date2014
Publication statusPublished - 2014
Event11th IIR Gustav Lorentzen Conference on Natural Refrigerants - Hangzhou, China
Duration: 31 Aug 20142 Sep 2014
Conference number: 11
http://www.gl2014.org/en/index.asp

Conference

Conference11th IIR Gustav Lorentzen Conference on Natural Refrigerants
Number11
CountryChina
CityHangzhou
Period31/08/201402/09/2014
Internet address

Cite this

Jensen, J. K., Ommen, T. S., Markussen, W. B., Reinholdt, L., & Elmegaard, B. (2014). Technical and Economic Working Domains of Industrial Heat Pumps: Part 2 - Ammonia-Water Hybrid Absorption-Compression Heat Pumps. In Proceedings of 11th IIR Gustav Lorentzen Conference on Natural Refrigerants Chinese Association of Refrigeration.