模拟1毫米圆形水平微管的微蒸发器

César Manuel Valencia-Castillo, Giuseppe Zummo, Luca Saraceno, Felipe Noh-Pat, Pedro Cruz-Alcántar
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引用次数: 0

摘要

流沸腾进入微通道是电子设备冷却解决方案的一个很好的选择。数值模拟允许在制造前进行正确的设计。本文给出了单个水平圆形1毫米管的稳态一维模拟结果。通过制冷剂的流动,可以区分两个区域:过冷液流和两相流。采用了典型的过冷流体流动方程和关系式;而两相流的理论模型已被采用。这里介绍的结果是使用全氟己烷的结果,全氟己烷用于配制用于冷却电子设备的制冷剂FC-72。对于测试参数的范围,可以得出以下结论:1)从选择泵的角度来看,应优先选择最高过冷液位和进口压力;Ii)为避免出现临界热流密度情况,应优先选用最低进口压力;(三)选择合适的进口压力与选择泵的观点与临界热流密度条件相反,存在矛盾。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Simulación de un micro-evaporador para un micro-tubo horizontal circular de 1-mm
Flow boiling into micro-channels is a good option of cooling solutions for electronic devices. Numerical simulations allow designing correctly before manufacturing. In this paper, the results of a steady-state one-dimensional simulation are presented for a single horizontal circular 1-mm tube. Through the refrigerant flows, two regions are distinguished: subcooled liquid flow and two-phase flow. Typical equations and correlations have been used for subcooled liquid flow; while one theoretical model has been used for two-phase flow. The results presented here are those by using perfluorohexane, which is used in the formulation of FC-72, a refrigerant for cooling electronic devices. For the range of tested parameters, the next conclusions come: i) from the point of view of choosing the pump, the highest subcooled level, and inlet pressure should be preferred; ii) in order to avoid the critical heat flux condition, the lowest inlet pressure should be preferred; iii) there is a contradiction for choosing the right inlet pressure because is opposite for the point of view of pump selection and critical heat flux condition.
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