Journal of Advanced Marine Engineering and Technology

  • 제34권2호
  • /
  • Pages.282-288
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  • 2010
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
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전자팽창밸브 개도에 따른 가변속 수냉각기의 용량제어 특성

Characteristics of Capacity Control of Variable Speed Water Cooler with the Electronic Expansion Valve Open/Close Degree

  • 백승문 (부경대학교 냉동공조공학과) ;
  • 문춘근 (주식회사 대일) ;
  • 김현우 (부경대학교 냉동공조공학과) ;
  • 정석권 (부경대학교 냉동공조공학과) ;
  • 윤정인 (부경대학교 냉동공조공학과)
  • 투고 : 2010.03.11
  • 심사 : 2010.03.24
  • 발행 : 2010.03.31
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초록

본 연구는 전자팽창밸브의 개도변화에 따른 가변속 수냉각기의 용량제어 특성에 관한 논문이다. 인버터에 의한 가변속 압축기를 사용한 냉각기를 최적으로 제어하기 위한 선행 연구이며 압축기 회전수별로 제어대상인 전자팽창밸브를 조절하여 증발기 출구의 과열도를 일정한 값으로 제어함으로써 최적의 냉각능력을 얻을 수 있는 과열도 값을 찾는 것을 목표로 하였다. 본 실험의 결과 압축기 회전속도가 일정할 때 팽창 밸브의 개도변화에 따라서 냉각능력이 최대가 되는 지점의 개도량을 실험을 통해서 파악할 수 있었다.

The paper presents the characteristics of capacity control of variable speed water cooler with the electronic expansion valve open/close degree. It is a preliminary study on the optimum control of the water cooler system using a variable speed compressor controlled by inverter. The electronic expansion valve controlled by the variation of compressor speed maintains the constant degree of superheat at the evaporator outlet, which aims to find the degree of superheat obtaining the optimum refrigeration effect. The investigation indicates that there is a point achieving the maximum cooling capacity by the variation of the electronic expansion valve open/close degree with constant compressor speed.

키워드

참고문헌

  1. S. M.Beak, J. H. Choi, J. Y. Byun, C. G. Moon, H. S. Lee, S. K. Jeong. J. I. Yoon, "Characteristics of temperature control by hot-gas bypass flow rate on industrial water cooler", The Korean Society of Marine Engineering, vol.33, no. 8, pp. 55-62, 2009.(in Korean). https://doi.org/10.5916/jkosme.2009.33.8.1129
  2. J. H. Choi, S. M. Baek, B. J. Jin, W. J. Choi, C. G. Moon, H. S. Lee and J. I. Yoon, "Performance characteristics of cooler controled capacity using hot-gas bypass", ICHMT CONV-09 Tunisia, pp. 502-505, 2009.
  3. H. S Yang, H. S. Kim, J. H. Kim, S. B. Kim and J. S. Kim, "Control of refrigerating compressor capacity using inverter", Korean Journal of Air-Conditioning and Refrigeration Engineering, vol. 5 no. 2, pp. 94-101, 1993. (in Korean).
  4. Y. T. Lee, and Y. C. Kim, "Performance characteristics of an inverter heat pump with various expansion devices", Proceedings of the Air-Conditioning and Refrigeration Engineering 1998 Conference, pp. 8-13, 1998.(in Korean).
  5. Hua, Li, J. I. Yoon, and S. K. Jeong, "Dynamic characteristics of refrigeration system for control evaporator superheat and cCompressor capacity", The Korean Society for Power System Engineering, KSPSE The 2004 Spring Conference, pp. 170-174, 2004.(in Korean).
  6. D. S. Yang, G. B. Lee and M. S. Kim, and Y. M. Cho "A Study on the capacity modulation of a variable speed vapor compression system using superheat at the compressor discharge", Proceedings of the SAREK 2004 Winter Annual Conference, p. 99, 2004.(in Korean).

피인용 문헌

  1. The characteristics of capacity control using a variable speed compressor in an industrial cooler vol.15, pp.2, 2011, https://doi.org/10.9726/kspse.2011.15.2.037
  2. Precise Temperature Control of Oil Coolers with Hot-gas Bypass Manner for Machine Tools Based on PI and Feedforward Control vol.23, pp.2, 2011, https://doi.org/10.6110/KJACR.2011.23.2.111
  3. Comparison of System Performances of Hot-gas Bypass and Compressor Variable Speed Control of Water Coolers for Machine Tools vol.24, pp.1, 2012, https://doi.org/10.6110/KJACR.2012.24.1.001
  4. Effects of seawater flow rate and evaporation temperature on performance of Sherbet type ice making machine vol.297, pp.1757-899X, 2018, https://doi.org/10.1088/1757-899X/297/1/012069