以PR方程结合vdW混合法则,利用修正的二元交互作用系数kij差值模型,对HFC/HC三元混合工质进行了推算,并与文献给出的5种三元混合工质(HFC32/HFC125/HFC134a、HFC290/HC600a/HFC32、HFC125/HFC143a/HFC134a、HFC32/HC290/HFC227ea、HFC32/ HFC125/HC290)的实验值和REFPROP 8.0数据库中的12种三元混合工质(R404A、R407A、R407B、R407C、R407D、R407E、R417A、R422A、R422B、R422C、R422D、R425A)的计算值进行了对比验证,结果表明该模型具有较高的预测能力和计算精度,其中压力计算平均偏差为1.29％,组分计算平均偏差为0.0053.
参考文献
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