Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery

Kim Choon Ng, Xiaolin Wang, Yee Sern Lim, Bidyut Baran Saha, Anutosh Chakarborty, Shigeru Koyama, Atsushi Akisawa, Takao Kashiwagi

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

The efficacy of a four-bed adsorption chiller has been studied experimentally with respect to a simple but yet effective passive heat and mass recovery schemes. It substantially improves the adsorption chiller COP by as much as 30% over a broad range of cycle time with a wide heat source, coolant and chilled water temperatures. Two schemes have been considered here: Firstly, only the mass recovery is achieved by pressure equalization between the concomitantly cooled adsorber and heated desorber, exploiting the intrinsic vapor-uptake potential by pressure swing that remains in the adsorbent at the end of a half-cycle. Secondly, when both the heat and mass recovery schemes are employed at a rating point of maximum cooling capacity, the chiller COP could increase further to as much as 48%. These improvements are performed without additional hardware changes to the adsorption chiller.

Original languageEnglish
Pages (from-to)3343-3348
Number of pages6
JournalInternational Journal of Heat and Mass Transfer
Volume49
Issue number19-20
DOIs
Publication statusPublished - Sep 1 2006

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beds
recovery
Adsorption
Recovery
heat
adsorption
cycles
water temperature
ratings
coolants
heat sources
adsorbents
Coolants
Adsorbents
hardware
Vapors
vapors
Cooling
Hardware
cooling

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Energy(all)
  • Mechanical Engineering

Cite this

Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery. / Ng, Kim Choon; Wang, Xiaolin; Lim, Yee Sern; Saha, Bidyut Baran; Chakarborty, Anutosh; Koyama, Shigeru; Akisawa, Atsushi; Kashiwagi, Takao.

In: International Journal of Heat and Mass Transfer, Vol. 49, No. 19-20, 01.09.2006, p. 3343-3348.

Research output: Contribution to journalArticle

Ng, Kim Choon ; Wang, Xiaolin ; Lim, Yee Sern ; Saha, Bidyut Baran ; Chakarborty, Anutosh ; Koyama, Shigeru ; Akisawa, Atsushi ; Kashiwagi, Takao. / Experimental study on performance improvement of a four-bed adsorption chiller by using heat and mass recovery. In: International Journal of Heat and Mass Transfer. 2006 ; Vol. 49, No. 19-20. pp. 3343-3348.
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