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http://dx.doi.org/10.5916/jkosme.2013.37.1.22

Numerical analysis of LNG vaporizer heat transfer characteristic in LNG fuel ship  

Lee, Dae-Chul (경상대학교 대학원 정밀기계공학과)
Afrianto, Handry (경상대학교 대학원 정밀기계공학과)
Chung, Han-Shik (경상대학교 에너지기계공학과, 해양산업연구소)
Jeong, Hyo-Min (경상대학교 에너지기계공학과, 해양산업연구소)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.1, 2013 , pp. 22-28 More about this Journal
Abstract
The heat transfer characteristics of LNG(Liquefied Natural Gas) vaporizer on the ship was performed by numerical simulation to get the optimum NG(Natural Gas) generating condition. The glycol-water was used for heating in LNG vaporizer, and the cooling water of main engine was used as heating souse for glycol-water. This cooling water temperature increases again after recirculating from the main engine, and then it can be used to heat the glycol-water. The numerical analysis results has good agreement with the experimental results by liquid nitrogen for validation. So CFD technique was used to simulate the heat transfer characteristics of LNG vaporizer on the ship. The numerical results show that the operation condition of LNG vaporizer shows NG temperature of $6^{\circ}C$ in the outlet of LNG vaporizer, and the mass flow rates of LNG and glycol-water were showed 0.111 kg/s and 1.805 kg/s, respectively.
Keywords
LNG; CFD; Vaporizer; Heat transfer; Phase change;
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