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首页> 外文期刊>International Journal of Heat and Mass Transfer >Prediction of critical heat flux for subcooled flow boiling
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Prediction of critical heat flux for subcooled flow boiling

机译：过冷沸腾临界热通量的预测

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摘要

A theoretical critical heat flux (CHF) prediction model is developed for the subcooled flow boiling based on the liquid sublayer dryout mechanism. The model is tested over a large data bank (about 2482 points), which is characterized by covering almost the entire physics scope, showing a general good accuracy. Parametric trends of the CHF in terms of mass flux, pressure, subcooling, channel diameter and ratio of heated length to diameter are studied with the aim of not only indicating the trends, but also giving the theoretical interpret. The model also shows good adaptation to non-uniform heating, twist tape insert and non-water (nitrogen and refrigerant ll3) system.
机译：基于液体亚层干燥机理，为过冷流沸腾建立了理论临界热通量（CHF）预测模型。该模型在大型数据库（约2482点）上进行了测试，其特点是几乎覆盖了整个物理范围，显示出总体良好的准确性。研究了CHF在质量通量，压力，过冷度，通道直径和加热长度与直径之比方面的参数趋势，其目的不仅是要指出趋势，而且要提供理论解释。该模型还显示出对非均匀加热，扭曲带插入物和非水（氮气和制冷剂ll3）系统的良好适应性。

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