[1] Wang Tao, Lin Wensheng, Gu Anzhong,. Comparison of two schemes for district cooling systemutilizing cold energy of liquefied natural gas [J]. Journal of Southeast University (English Edition), 2010, 26 (2): 316-319. [doi:10.3969/j.issn.1003-7985.2010.02.038]

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Comparison of two schemes for district cooling systemutilizing cold energy of liquefied natural gas()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 2

Page:

316-319

Research Field:

Energy and Power Engineering

Publishing date:

2010-06-30

Info

Title:

Comparison of two schemes for district cooling systemutilizing cold energy of liquefied natural gas

Author(s):

Wang Tao;  Lin Wensheng;  Gu Anzhong

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China

Keywords:

district cooling system;  liquefied natural gas(LNG);  cold energy utilization;  system efficiency

PACS:

TB69

DOI:

10.3969/j.issn.1003-7985.2010.02.038

Abstract:

Two schemes(scheme Ⅰ and scheme Ⅱ )for designing a district cooling system(DCS)utilizing cold energy of liquefied natural gas(LNG)are presented.In scheme Ⅰ〓, LNG cold energy is used to produce ice, and then ice is transported to the central cooling plant of the DCS.In scheme Ⅱ〓, return water from the DCS is directly chilled by LNG cold energy, and the chilled water is then sent back to the central plant.The heat transportation loss is the main negative impact in the DCS and is emphatically analyzed when evaluating the efficiency of each scheme.The results show that the DCS utilizing LNG cold energy is feasible and valuable.The cooling supply distance of scheme Ⅱ is limited within 13 km while scheme Ⅰ has no distance limit.When the distance is between 6 and 13 km, scheme Ⅱ is more practical and effective.Contrarily, scheme Ⅰ has a better economic performance when the distance is shorter than 6 km or longer than 13 km.

References:

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[4] Chow T T, Aub W H, Ya R, et al.Applying district-cooling technology in Hong Kong [J].Applied Energy, 2004, 79(3):275-289.
[5] Yoshiyuki S, Tomoji N, Naoaki I, et al.Verification of energy efficiency of district heating and cooling system by simulation considering design and operation parameters [J].Building and Environment, 2008, 43(4):569-577.
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Memo

Memo:

Biographies: Wang Tao(1986—), male, graduate;Lin Wensheng(corresponding author), male, associate professor, linwsh@sjtu.edu.cn.
Citation: Wang Tao, Lin Wensheng, Gu Anzhong.Comparison of two schemes for district cooling system utilizing cold energy of liquefied natural gas[J].Journal of Southeast University(English Edition), 2010, 26(2):316-319.

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