Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Type 2 Absorption Cycle to Transport Energy in the Long Distance for District Cooling Application

지역냉방 적용을 위한 LNG냉열 장거리 수송용 제 2종 흡수식 시스템

  • Cho Young Kyong (Department of Mechanical Engineering, Kyung Hee University) ;
  • Kim Jin-Kyeong (Department of Mechanical Engineering, Kyung Hee University) ;
  • Oh Min Kyu (Department of Mechanical Engineering, Kyung Hee University) ;
  • Kang Yong Tae (School of Mechanical and Industrial System Engineering, Kyung Hee University)
  • 조영경 (경희대학교 기계공학과) ;
  • 김진경 (경희대학교 기계공학과) ;
  • 오민규 (경희대학교 기계공학과) ;
  • 강용태 (경희대학교 기계산업시스템공학부)
  • Published : 2005.03.01
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Abstract

The objective of this paper is to develop a new energy transport system for district cooling application by using type 2 absorption cycle. Cold energy from the LNG storage system is utilized as the cooling source of the condenser and the rectifier. The pressures of the system, UAs of the evaporator and the desorber, and the inlet temperatures of the refrigerant to each component are considered as the key parameters. The results show that UA of the evaporator is more dominant parameter on COP than that of the desorber and the optimum system pressure for the demand side is estimated as 525 kPa. For the present system, it is recommended that the refrigerant inlet temperature of the evaporator be lower than $4.3^{\circ}C$ for long-distance transportation. It is concluded that the cold energy from the LNG storage system can be effectively applied to the long-distance transportation system for district cooling application with the type 2 absorption cycle. The optimum operation conditions are also predicted from the parametric analysis.

Keywords

References

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