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Dynamic heat transfer analysis of liquefied natural gas ambient air vaporizer under frost conditions.

Author(s) : LIU S., JIAO W., REN L., et al.

Type of article: Article

Summary

Liquefied natural gas (LNG) ambient air vaporizer (AAV) is a cryogenic heat exchanger, which utilizes ambient air to evaporate LNG in gas terminal stations. The moist air around the AAV fin tube may freeze during the long-time operation, leading to a worse heat transfer performance. Study on the dynamic heat transfer performance of AAV is required for its optimal design and operation. This paper presents a coupled dynamic heat transfer model, which incorporates the cryogenic frost formation and flow boiling heat transfer of LNG. The model was demonstrated in the heat transfer analysis of a typical star-fin type AAV. The model results were validated by the test data of a commercial HAI848F type AAV. The dynamic heat transfer performance of AAV under frost conditions was also studied.

Details

  • Original title: Dynamic heat transfer analysis of liquefied natural gas ambient air vaporizer under frost conditions.
  • Record ID : 30020680
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 110
  • Publication date: 2017/01/05
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2016.09.016

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