Experimental investigation of a silica gel-water adsorption refrigeration cycle - the influence of operating conditions on cooling output and COP

Elisa C. Boelman, Bidyut B. Saha, Takao Kashiwagi

Research output: Contribution to journalConference articlepeer-review

167 Citations (Scopus)

Abstract

This paper is the second part of a study on the use of adsorption refrigeration cycles driven by waste heat of near-ambient temperature. Experiments were conducted with several heat transfer fluid operating temperatures (hot, cooling, and chilled water), flow rates, and adsorption-desorption cycle times, and good qualitative agreement was obtained with the simulated results. Both experiments and simulation showed that the silica gel-water adsorption cycle is well suited to near-environmental-temperature heat sources and small regenerating temperature lifts, which help reduce the heat losses intrinsic to batched cycle operation. The chiller was operational with a hot water inlet temperature (Thot in) of 50°C (122°F), and the highest experimental values of the coefficient of performance (COP) (more than 0.4) were obtained with Thot in = 50°C (122°F) in combination with cooling water at 20°C (68°F).

Original languageEnglish
Pages (from-to)358-366
Number of pages9
JournalASHRAE Transactions
Volume101
Issue numberPt 2
Publication statusPublished - Dec 1 1995
Externally publishedYes
EventProceedings of the 1995 ASHRAE Annual Meeting - San Diego, CA, USA
Duration: Jun 24 1995Jun 28 1995

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

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