Multi-bed regenerative adsorption chiller - improving the utilization of waste heat and reducing the chilled water outlet temperature fluctuation

H. T. Chua, K. C. Ng, A. Malek, T. Kashiwagi, A. Akisawa, B. B. Saha

研究成果: Contribution to journalArticle査読

88 被引用数 (Scopus)

抄録

A multi-bed regenerative adsorption chiller design is proposed. The concept aims to extract the most enthalpy from the low-grade waste heat before it is purged into the drain. It is also able to minimize the chilled water temperature fluctuation so that downstream temperature smoothing device may be downsized or even eliminated in applications where tighter temperature control may be required. The design also avoids a master-and-slave configuration so that materials invested are not under-utilized. Because of the nature of low-grade waste heat utilization, the performance of adsorption chillers is measured in terms of the recovery efficiency, η instead of the conventional COP. For the same waste heat source flowrate and inlet temperature, a four-bed chiller generates 70% more cooling capacity than a typical two-bed chiller. A six-bed chiller in turn generates 40% more than that of a four-bed chiller. Since the beds can be triggered into operation sequentially during start-up, the risk of ice formation in the evaporator during start-up is greatly reduced compared with that of a two-bed chiller.

本文言語英語
ページ(範囲)124-136
ページ数13
ジャーナルInternational Journal of Refrigeration
24
2
DOI
出版ステータス出版済み - 3 2001
外部発表はい

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

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