Solar/waste heat driven two-stage adsorption chiller: The prototype

B. B. Saha, A. Akisawa, T. Kashiwagi

Research output: Contribution to journalArticlepeer-review

237 Citations (Scopus)


Nowadays, adsorption heat pumps receive considerable attention as they are energy savers and environmentally benign. In this study silica gel-water is taken as the adsorbent refrigerant pair. To exploit solar/waste heat of temperatures below 70°C, staged regeneration is necessary. A new two-stage non-regenerative adsorption chiller design and experimental prototype is proposed. Experimental temperature profiles of heat transfer fluid inlets and outlets are presented. The two-stage cycle can be operated effectively with 55°C solar/waste heat in combination with a 30°C coolant temperature. In this paper the physical adsorption of silica gel. working principle and features of a two-stage chiller are described.

Original languageEnglish
Pages (from-to)93-101
Number of pages9
JournalRenewable Energy
Issue number1
Publication statusPublished - Feb 17 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment


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