Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지

Experimental Study for Investigating the Optimum Operating Conditions of a Seawater Ice Machine

해수제빙장치의 최적 운전 조건 탐색을 위한 실험적 연구

  • 이화 ;
  • 주우진 (부경대학교 대학원 냉동공조공학과) ;
  • 정석권 (부경대학교 냉동공조공학과)
  • Received : 2010.03.17
  • Accepted : 2010.09.24
  • Published : 2010.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper investigates the optimum operating conditions to construct total automatic control system with high energy efficiency of a newly developed seawater ice machine. The machine has an electronic expansion valve(EEV) and a variable speed rotating drum with an evaporator installed inside. The coefficient of performance(COP) was used as an index to evaluate energy efficiency of the machine. At first, the opening angle of EEV was adjusted to obtain COP of the machine at a constant speed of the drum. Then, we checked seawater ice product versus opening angles of the EEV. Finally, effect of drum's rotating speed in response to product of seawater ice and seawater ice temperature were considered.

Keywords

References

  1. S. K. Jeong et al., 2005, "Dynamic Analysis of Evaporator for Optimum Control in Refrigeration System", Journal of KSPSE, Vol. 9, No. 1, pp. 82-88.
  2. J. D. Kim, J. E. Jang and J. I. Yoon, 1998, "Expansion Valves Characteristics for Development of Control System on Air Conditioning and Refrigeration System", Journal of KSPSE, Vol. 2, No. 3, pp. 34-40.
  3. C. S. Kim et al., 2003, "Verification of the Standard Refrigeration Cycle by Using the Expansive Valve of Manual type", Proc. of SAREK, pp. 941-947.
  4. J. S. Lee, 2008, "Performance Analysis of a Refrigeration System with Parallel Control of Evaporation Pressure", Journal of KSME, Vol. 32, No. 8, pp. 567-573.
  5. Y. H. Jun et al., 2003, "Cooling Characteristics on EEV Opening Step of 3 Room Air Conditioner", Proc. of SAREK, pp. 472-476.
  6. H. H. Cho, G. C. Ryu and Y. C. Kim, 2004, "Experimental Study on the Performance of CO2 Cycle in the Cooling Mode", Proc. of SAREK, pp. 571-576.
  7. J. D. Kim, H. K. Oh and J. I. Yoon, 1995, "A Study on Dynamic Characteristics of a Refrigeration System by Controlling the Evaporator", Proc. of SAREK, pp. 2012-2021.