浸没燃烧式LNG气化器传热计算初探

doi:10.11949/j.issn.0438-1157.20181138

摘要/Abstract

摘要：

对浸没燃烧式LNG气化器（SCV）传热计算方法进行了研究，通过分段计算，校核现有传热计算模型对浸没燃烧式LNG气化器传热计算的适用性。管外传热利用流体横掠管束Zukauskas模型，管内段传热利用Dittus-Boelter模型、Shah （1982）模型、Kandlikar（1990）模型和Kew and Cornwell （1997）模型分别进行计算，结果表明，Kandlikar（1990）模型和Kew and Cornwell （1997）模型对LNG管内沸腾换热的计算结果偏差较小，分别为38.46%和38.33%。

Abstract:

In this paper, the heat transfer calculation method of the (SCV) is studied. Through subsection calculation, the applicability of the existing heat transfer calculation model to the heat transfer calculation of the submerged combustion LNG vaporizer is explored. Zukauskas model of fluid transverse swept tube bundle is applied to calculate the external heat transfer of the tube. As for the internal heat transfer of the tube, Dittus-Boelter model, Shah (1982) model, Kandlikar (1990) model and Kew and Cornwell (1997) model are utilized. The results show that the calculated results of Kandlikar (1990) model and Kew and Cornwell (1997) model have a small deviation in the calculation of boiling heat transfer in the LNG pipe, which are 38.46% and 38.33% respectively.

中图分类号:

TQ051.5

许婧煊, 林文胜, 阮斌辉. 浸没燃烧式LNG气化器传热计算初探[J]. 化工学报, 2018, 69(S2): 147-152.

XU Jingxuan, LIN Wensheng, RUAN Binhui. Preliminary study on heat transfer calculation of submerged combustion LNG vaporizer[J]. CIESC Journal, 2018, 69(S2): 147-152.

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