Measured and predicted upward flow boiling heat transfer coefficients for hydrocarbon mixtures inside a cryogenic plate fin heat exchanger
Measured and predicted upward flow boiling heat transfer coefficients for hydrocarbon mixtures inside a cryogenic plate fin heat exchanger
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低温板翅式换热器内碳氢化合物混合物的上流沸腾传热系数的测量和预测
DOI：
10.1016/j.ijheatmasstransfer.2018.02.007
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发表时间：
2018-08
影响因子：
5.2
通讯作者：
Xu XW
中科院分区：
文献类型：
--
作者：
Li Rixin;Liu Jinping;Liu Jiayao;Xu Xiongwen;Liu Jinping;Xu Xiongwen;Liu Jinping;Xu XW
板翅式换热器 (PFHE) 内烃混合物的沸腾在石化厂的许多低温过程中最为普遍。然而，关于 PFHE 中沸腾混合物的实验数据很少，也缺乏预测方法。本文建立了一个实验装置，利用单级低温循环来测量穿孔 PFHE 内碳氢化合物混合物的沸腾传热系数 (HTC)。混合物的组分包括甲烷、乙烯、丙烷和异丁烯。在不同的操作条件下进行了27组实验，获得了261个沸腾HTC的数据点。实验条件涵盖质量通量3.69~19.38kgm−2s−1、压力1.35~5.22bar、蒸汽质量0.05~0.77，代表了广泛的实际工业条件。相应的热通量范围仅为55.7至3837.3Wm−2。实验沸腾HTC变化范围为21.4到1055.7Wm−2K−1，并且它是热通量的强函数。此外，利用现有的实验数据评估了十二种现有的相关性。结果表明，Chen型相关性预测的HTC与实验结果不一致，推荐一种由小通道相关性发展而来的新相关性。
Boiling of hydrocarbon mixtures inside plate fin heat exchangers (PFHEs) is most prevalent in many cryogenic processes of petrochemical plants. However, there is very little experimental data and a lack of prediction methods regarding boiling mixtures in PFHEs. This paper established an experimental setup that utilized a single-stage cryogenic cycle to measure the boiling heat transfer coefficients (HTCs) for hydrocarbon mixtures inside a perforated PFHE. The components of the mixtures include methane, ethylene, propane and isobutene. Twenty-seven sets of experiments were conducted under various operating conditions and 261 data points of the boiling HTC were obtained. The experimental conditions cover the mass fluxes of 3.69–19.38 kg m−2s−1, pressures of 1.35–5.22 bar and vapor qualities of 0.05–0.77, which are representative of a wide range of actual industrial conditions. The corresponding heat fluxes only range from 55.7 to 3837.3 W m−2. The experimental boiling HTC varies from 21.4 to 1055.7 W m−2K−1, and it is a strong function of the heat flux. Moreover, twelve existing correlations were assessed by using the present experimental data. The results show that the HTCs predicted by Chen type correlations were not consistent with the experimental results, and a new correlation developed from mini-channel correlations was recommended.
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影响因子：
3.8
作者：
T. Tran;M. W. Wambsganss
通讯作者：
T. Tran;M. W. Wambsganss
多流板翅式换热器层型热设计与优化综述
影响因子：
15.9
作者：
Wang Zhe;Li Yanzhong
通讯作者：
Li Yanzhong
影响因子：
--
作者：
KANDLIKAR, SG
通讯作者：
KANDLIKAR, SG
DOI：
10.1016/s0140-7007(96)00004-7
发表时间：
1996-09
期刊：
International Journal of Refrigeration-revue Internationale Du Froid
影响因子：
--
作者：
J. Thome
通讯作者：
J. Thome
影响因子：
2.1
作者：
Dongsheng Chen;Yu-mei Shi
通讯作者：
Dongsheng Chen;Yu-mei Shi