水合物浆体在水平细管中的流动相变换热

doi:10.3969/j.issn.0438-1157.2014.z1.016

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 101-105.DOI: 10.3969/j.issn.0438-1157.2014.z1.016

水合物浆体在水平细管中的流动相变换热

张鹏, 叶健, 钱文强

上海交通大学制冷与低温工程研究所, 上海 200240

收稿日期:2014-01-22 修回日期:2014-01-28 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 张鹏
基金资助:
国家自然科学基金项目（51176109，51311140169）。

Heat transfer characteristics of clathrate hydrate slurry in horizontal mini-tubes

ZHANG Peng, YE Jian, QIAN Wenqiang

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

Received:2014-01-22 Revised:2014-01-28 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the National Natural Science Foundation of China (51176109, 51311140169).

摘要/Abstract

摘要： 实验测量了质量分数为0~19.2%的TBAB水合物浆体在恒热流条件下在小管径内流动时的流动传热特性。利用数值计算获得管内浆体的沿程温度分布，在此基础上得到水合物浆体在小管径内的强制对流传热特性。结果表明加热功率对小管径管道中的浆体传热特性有较大影响；在层流状态下，流速对传热系数的影响相比紊流时要小。在实验数据基础上总结出了TBAB水合物浆体在小管径管内的对流换热经验关联式。

关键词: 水合物浆体, 换热, 关联式

Abstract: The heat transfer characteristics of tatra-n-butyl ammonium bromide(TBAB)clathrate hydrate slurry (CHS) flowing through the heated mini-tubes under constant heat flux are investigated in the present paper. The inlet and outlet temperature, outer tube wall temperature and flow velocity of TBAB CHS in heated tube were measured. The variation of the temperature along the tube was obtained by solving the continuity, momentum and energy equations. It was found that influence of heating flux on heat transfer was larger in smaller tube. In addition, influence of flow velocity in laminar region is smaller than that in turbulence region. Referring to the results of ice slurry and MPCM slurry, a similar form is adopted to fit experimental data. The empirical heat transfer correlation are quantitatively similar to those of experimental results and the relative errors are within ±20%.

Key words: clathrate hydrate slurry, heat transfer, correlations

中图分类号:

TQ028.8

张鹏, 叶健, 钱文强. 水合物浆体在水平细管中的流动相变换热[J]. 化工学报, 2014, 65(S1): 101-105.

ZHANG Peng, YE Jian, QIAN Wenqiang. Heat transfer characteristics of clathrate hydrate slurry in horizontal mini-tubes[J]. CIESC Journal, 2014, 65(S1): 101-105.

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水合物浆体在水平细管中的流动相变换热

Heat transfer characteristics of clathrate hydrate slurry in horizontal mini-tubes

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