Waste heat driven multi-bed adsorption chiller: Heat exchangers overall thermal conductance on chiller performance

Bidyut Baran Saha, Ibrahim Ibrahim El-Sharkawy, Shigeru Koyama, Jong Boong Lee, Ken Kuwahara

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The results of an analytic investigation on the influence of the thermal conductance of a sorption element (adsorber/desorber), evaporator, and condenser on the performance of a three-bed silica-gel-water adsorption chiller are presented with consideration given to the thermal capacitance ratio of the adsorbent and metal of the adsorber/desorber heat exchanger. The analysis was performed by using a cycle-simulation model developed by the authors. The chiller is driven by exploiting waste heat at a temperature 60 and 95°C with a cooling source at 30°C for air conditioning purpose. The results show that the cycle performance is strongly affected by the thermal capacitance ratio and sorption element thermal conductance due to several sensible heating/cooling requirements resulting from batched cycle operation. The model is somewhat sensitive to the thermal conductance of the evaporator, and the thermal conductance of the condenser is the least sensitive parameter.

Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalHeat Transfer Engineering
Volume27
Issue number5
DOIs
Publication statusPublished - Jun 1 2006

Fingerprint

waste heat
Waste heat
heat exchangers
Heat exchangers
beds
Adsorption
adsorption
evaporators
condensers
sorption
cycles
capacitance
Evaporators
cooling
air conditioning
Sorption
silica gel
Capacitance
adsorbents
Cooling

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Waste heat driven multi-bed adsorption chiller : Heat exchangers overall thermal conductance on chiller performance. / Saha, Bidyut Baran; El-Sharkawy, Ibrahim Ibrahim; Koyama, Shigeru; Lee, Jong Boong; Kuwahara, Ken.

In: Heat Transfer Engineering, Vol. 27, No. 5, 01.06.2006, p. 80-87.

Research output: Contribution to journalArticle

Saha, Bidyut Baran ; El-Sharkawy, Ibrahim Ibrahim ; Koyama, Shigeru ; Lee, Jong Boong ; Kuwahara, Ken. / Waste heat driven multi-bed adsorption chiller : Heat exchangers overall thermal conductance on chiller performance. In: Heat Transfer Engineering. 2006 ; Vol. 27, No. 5. pp. 80-87.
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