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首页> 外文期刊>International Journal of Heat and Mass Transfer >Comparison of the CHF data for water and refrigerant HFC-134a by using the fluid-to-fluid modeling methods
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Comparison of the CHF data for water and refrigerant HFC-134a by using the fluid-to-fluid modeling methods

机译：使用流体到流体建模方法比较水和制冷剂HFC-134a的CHF数据

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摘要

CHF experiments in tubes and annulus cooled with HFC-134a have been performed. The HFC-134a and water CHF data have been compared by applying the Ahmad and the Katto modeling parameters. For the mass fluxes from 710 to 3500 kg m~(-2) s~(-1) in the tubes, the HFC-134a and water CHF data fall close to the same curve on the plane of the dimensionless CHF vs. the Ahmad and the Katto modeling parameters. For the mass fluxes below 600 kg m~(-2) s~(-1) in an annulus, the dimensionless CHFs as a function of the Ahmad and the Katto modeling parameters show a large difference between the HFC-134a and the water. The Katto and the Ahmad modeling parameters cannot be correlated with the dimensionless CHF data for HFC-134a and water on the same curve in the low mass flux and high quality conditions.
机译：已经在用HFC-134a冷却的管和环中进行了CHF实验。通过应用Ahmad和Katto建模参数比较了HFC-134a和水CHF数据。对于管中710至3500 kg m〜（-2）s〜（-1）的质量通量，HFC-134a和水的CHF数据在无量纲CHF与Ahmad平面上的曲线接近相同以及Katto建模参数。对于环空中低于600 kg m〜（-2）s〜（-1）的质量通量，无量纲CHF作为Ahmad和Katto建模参数的函数，表明HFC-134a与水之间存在较大差异。在低质量通量和高质量条件下，Katto和Ahmad建模参数无法与HFC-134a和水在同一条曲线上的无量纲CHF数据相关。

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