A Study on the COP Improvement of Absorption Chillers by Recovering Heat from the Condenser

응축기 배열회수에 의한 흡수식 냉동기의 고효율화에 관한 연구

  • Park, Chan-Woo (Department of Computer Based Applied Mechanical Engineering, Iksan National College)
  • 박찬우 (국립익산대학 컴퓨터응용기계과)
  • Published : 2006.09.01

Abstract

In order to utilize the condensation heat of refrigerants in condenser on the absorption chiller system, the solution cooled condenser (SCC) was proposed using the weak solution of absorber as a cooling medium. The increase of COP with the increase of UA of the solution cooled condenser was approximately 0.009 in maximum with single effect one, and is about maximum 0.008 in occasion of double effect one with series flow compared to that without. In the case of heat exchanger, effectiveness is about 0.85, it's increments are 0.008 and 0.0072, respectively. And solution cooled condenser is more effective device in the single effect absorption system than double effect system for the principle of operation. On the other hand, as the solution split ratio increases when the value of UA is fixed, COP is increased and as the solution split ratio increases when the value of UA is fixed, COP is increased. If the flow rate of cooling water or the value of UA is reduced in order to increases the heat recovery of solution cooled condenser, heat recovery of solution cooled condenser is increased a little but COP is decreased as the system pressure is increased.

Keywords

References

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