The Study on Performance Characteristics of Superheating the Suction Vapor in $NH_3$ Refrigeration System

$NH_3$ 냉동장치의 과열도 변화에 의한 성능 특성 연구

  • 권일욱 (조선대학교 대학원 기계공학과) ;
  • 하옥남 (조선대학교 기계공학과)
  • Published : 2004.08.01

Abstract

Since the use of CFC and HCFC refrigerants are to be restricted due to the depletion of ozone layer, this experiment applies the NH$_3$ gas to study the performance characteristics from the superheat control for improving the energy efficiency. The experiments are carried out for the condensing pressure of refrigeration system from 14.5 bar to 16.0 bar by 0.5 bar and for superheat temperature from $0^{\circ}C$ to 1$0^{\circ}C$ by 1$^{\circ}C$ at each condensing pressure. As a result of experiment, when the superheat temperature is 1$^{\circ}C$ at each condensing pressure, the refrigeration system has the highest performance.

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References

  1. Refrigeration and Air Conditioning, 2nd ed. Stoecker,W.F.
  2. Technical Report Du Pont Alternative Refrigerants, Applications Testing of HCFC-123 and HFC-134a E.I.du Pont de Nemours & Co. Ltd.
  3. Scientific Assessment of Ozone Depletion ODPs, GWPs, and future chlorine/bromine loading Soloman,S.;Wuebbles,D.
  4. The Society of Air-conditioning and Refrigerating Engineers of Korea, Proceedings of the SAREK '99 Summer Annual Conference (Ⅰ) A study on performance characteristic of new alternative refrigerant replacing HFC-134a Han,J.S.;Youn,J.G.;Won,S.P.
  5. Res. Found. Inform. Bull. Effect of Ammonia, Refrig.
  6. Refrigerating Engineering Yun,J.I.
  7. Refrigeration v.61 Electronic expansion valve and control Higuchi,K.
  8. Heat Transfer Cengel,Y.A.