Browse > Article
http://dx.doi.org/10.5916/jkosme.2011.35.4.429

Characteristics of On-off Control and Hot-Gas Bypass Control in an Industrial Cooler  

Baek, Seung-Moon (부경대학교 대학원)
Moon, Choon-Geun ((주) 대일)
Kim, Eun-Pil (부경대학교 냉동공조공학과)
Jeong, Seok-Kwon (부경대학교 냉동공조공학과)
Yoon, Jung-In (부경대학교 냉동공조공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.35, no.4, 2011 , pp. 429-435 More about this Journal
Abstract
In this study the operational characteristics of the temperature control system between an on-offemployed cooler and a bypass type cooler is analyzed. Currently an on-off controller employed coolerwhich is the industry's leading type on the market for industrial coolers is used. The new type cooler isused a bypass controller at discharge gas. The COP of the bypass controlled cooler with discharge gas is at least 8% higher than the on-off controlled cooler. The maximum COP difference is about 20%. Based on the results, the bypass control with discharge gas shows the possible temperature control with high precision.
Keywords
Industrial cooler; On-off type controller; Hot-gas bypass controller; Operating characteristics; Temperature control;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 백승문, 최준혁, 변종영, 문춘근, 이호생,정석권, 윤정인 "핫가스 바이패스 유량에 따른 산업용 냉각기의 온도제어 특성", 한국마린엔지니어링학회, vol. 33, no. 8, pp. 55-62, 2009.   과학기술학회마을   DOI
2 이승우, 염한길, 박길종, "Hot Gas를 이용한 오일쿨러의 성능평가", 한국정밀공학회지 vol. 26, no. 3, pp. 73-80, 2009.   과학기술학회마을
3 염한길, 이승우, 박길종, "가스 바이패스 사이클을 적용한 오일쿨러 연구" 기계와 재료, vol. 22 no. 1, pp. 54-64, 2010.   과학기술학회마을
4 Yaqub. M, Zubair S. M. and Khan S. H., "Second-law-based thermodynamic analysis of hot-gas by pass, capacitycontrol schemes for refrigeration and air-conditioning systems", Energy-The International Journal vol. 20, no. 6, pp. 483-493, 1995.   DOI   ScienceOn
5 Yaqub. M, Zubair S. M. and Jameelur- Rehman Khan., "Performance evaluation of hot-gas bypass capacity control scheme for refrigeration and air-conditioning systems," Energy, vol. 25, pp. 543-561, 2000.   DOI   ScienceOn
6 J. I. Yoon, S. T. Oh, S. M. Baek, J. H. Choi, J. Y. Byun, S. K. Jeong and C. G. Moon, "Temperature control of industrial water cooler using hot-gas bypass," WCSET Bali-2009, pp. 377-381, 2009.