A new model for refrigerant boiling inside a brazed plate heat exchanger (BPHE).
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资源简介：
This paper presents a new model for refrigerant boiling inside Brazed Plate Heat Exchangers (BPHEs) based on a set of 251 experimental data previously obtained by the authors which includes data points relative to HFC refrigerants (HFC236a, HFC134a, HFC410A), HC refrigerants (HC600a-Isobutane, HC290-Propane, HC1270-Propylene), and also a new low Global Warming Potential (GWP) HFO refrigerant (HFO1234yf). The new model includes specific equations for nucleate and convective boiling. The new model was compared against a set of 505 experimental data obtained by different laboratories which includes HFC134a, HFC410A, HFC507A and HCFC22 data points with different plate geometry. The mean absolute percentage deviation between experimental and calculated data is around 20%.
本文提出了一种适用于钎焊板式换热器（Brazed Plate Heat Exchangers, BPHEs）内制冷剂沸腾换热的新型模型，其构建基础为作者团队此前采集的251组实验数据集。该数据集包含氢氟烃（HFC）类制冷剂（涵盖HFC236a、HFC134a、HFC410A）、烃类（HC）类制冷剂（涵盖HC600a-异丁烷、HC290-丙烷、HC1270-丙烯），以及一款新型低全球变暖潜势（Global Warming Potential, GWP）氢氟烯烃（HFO）类制冷剂HFO1234yf的相关实验数据点。该新型模型设置了针对核态沸腾与对流沸腾的专属计算方程。研究团队将所提模型与不同实验室获取的505组实验数据集开展对比验证，该对比数据集包含不同板片几何结构下的HFC134a、HFC410A、HFC507A及HCFC22实验数据点。实验值与模型计算值之间的平均绝对百分比偏差约为20%。
提供机构：
International Institute of Refrigeration (IIR)
创建时间：
2016-10-06
