Innovative low-grade heat driven ejector chillers and air conditioners operating with low boiling refrigerants.

Number: pap. C6-006

Author(s) : PETRENKO V. O.

Summary

This paper provides the main results of research and development into the area of low-grade heat driven ejector refrigeration machines (ERMs), using low-boiling point working fluids, that have been carried out in the Odessa State Academy of Refrigeration (OSAR) Ukraine, in the period from 1970 up to date. The guidelines of our R&D activity in the area of ejector refrigeration technologies includes the following main methods of enhancement of ERMs performance characteristics: a) proper selection of environmentally friendly, preferably natural, working fluids; b) optimization of ejector refrigeration cycle and operating conditions; c) optimum design of supersonic ejectors flow profiles and supersonic ejectors constructions, based on one-dimensional modeling and computational fluid dynamics modeling and experimentation; d) development of autonomous ERMs on the basis of the non-conventional and thermally driven feed pumps; e) development of combined, hybrid and multi-purpose systems utilizing different ERMs, etc. On the basis of obtained results, various innovative high-efficiency multipurpose ejector chillers and air conditioners driven by low-grade waste and exhaust heat and solar energy are developed and suggested for effective application in different areas including micro-trigeneration systems, solar air conditioning and cooling systems and other fields.

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Pages: 12 p.

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Details

  • Original title: Innovative low-grade heat driven ejector chillers and air conditioners operating with low boiling refrigerants.
  • Record ID : 30005358
  • Languages: English
  • Source: ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
  • Publication date: 2010/06/07

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