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Investigation and comparison of two configurations of a novel open-cycle absorption chiller.

Author(s) : POHL J. P., HELLMANN H. M., GROSSMAN G.

Type of article: Article, IJR article

Summary

The paper studies and compares two basic configutions (open and semi-open) of the dehumidifier-evaporative cooler-regenerator absorption chiller. They are both capable of utilizing low grade heat, since their open designs allow for operation at small differences between the heat source and the heat rejection temperaures. They employ ambient air in conjunction with an absorbent solution for producing chilled water. The machines consist of only three major components and operate at atmospheric pressure. Computer simulations of the two configurations operated under ambient conditions of a typical summer day as well as under US ARI standard outdoor conditions have been conducted using a modified existing computer code. The semi-open configuration proved to be superior for most cases with respect to the COP. However, under typical summer day conditions, the open dehumidifier-evaporative cooler-regenerator cycle performed better for chilled water temperatures above 15 deg C that are common in radiant cooling applications. Here, the COP attains values of about 0.8.

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Pages: 142-149

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Details

  • Original title: Investigation and comparison of two configurations of a novel open-cycle absorption chiller.
  • Record ID : 1998-2889
  • Languages: English
  • Subject: General information
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 21 - n. 2
  • Publication date: 1998/03

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