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The impact of work input to sorption cycles.

Author(s) : BERLITZ T., CERKVENIK B., HELLMANN H. M., et al.

Type of article: Article, IJR article

Summary

This article is centred around absorption cycles which use a compressor, and, consequently, an input of a significant amount of mechanical work in addition to heat. In most publications cycles of this kind are discussed in terms of one single COP as usual in the refrigeration industry. This, however, is wrong from a thermodynamic, and misleading from a technical and economical point of view. In order to highlight the need for a strict thermodynamic approach, a fundamental difference between distinct kinds of work input, namely "recoverable work", "dissipative work and "heat transformation work" is discussed in the first part of the paper. In the second part it is shown how the input of both work and heat into a energy conversion system had to be handled with both mechanical and thermal COP. The method is thermodynamically sound and straightforward, technically feasible and easy to apply, and most quickly transferred into economical terms. In the third part, a practical example of a compression-absorption hybrid is investigated.

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Format PDF

Pages: 88-99

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Details

  • Original title: The impact of work input to sorption cycles.
  • Record ID : 2001-1754
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 24 - n. 1
  • Publication date: 2001/01

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