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A numerical analysis of cooling water temperature of two-stage adsorption chiller along with different mass ratios

Authors
Journal
International Communications in Heat and Mass Transfer
0735-1933
Publisher
Elsevier
Publication Date
Volume
38
Issue
8
Identifiers
DOI: 10.1016/j.icheatmasstransfer.2011.05.011
Keywords
  • Reheat Two-Stage Chiller
  • Cop
  • Adsorption Cycle
  • Silica Gel/Water
Disciplines
  • Ecology

Abstract

Abstract This paper deals with the performance investigation of a silica gel/water based on two-stage, four-bed adsorption chiller with different mass allocation between upper and lower beds employing the re-heat scheme. The innovative chiller is powered by waste heat or renewable energy source of temperature between 50 °C and 90 °C with a coolant of inlet temperature 30 °C for air conditioning purpose. The performance of the four-bed adsorption chiller employing the re-heat scheme is compared with that of the two-stage conventional chiller with the re-heat scheme using equal mass allocation. Results show that cooling capacity can be improved with the optimum allocation of adsorbent mass to the upper beds than that of lower beds. Besides, it is observed that the cooling capacity can be improved up to 10.78% while the cooling water temperature is at 20 °C.

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