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Taguchi method for development of mass flow rate correlation using hydrocarbon refrigerant mixture in capillary tube

机译:田口法利用毛细管中的碳氢制冷剂混合物建立质量流量相关性

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摘要

The capillary tube is an important control device used in small vapor compression refrigeration systems such as window air-conditioners, household refrigerators and freezers. This paper develops a non-dimensional correlation based on the test results of the adiabatic capillary tube for the mass flow rate through the tube using a hydrocarbon refrigerant mixture of 89.3% propane and 10.7% butane (HCM). The Taguchi method, a statistical experimental design approach, was employed. This approach explores the economic benefit that lies in studies of this nature, where only a small number of experiments are required and yet valid results are obtained. Considering the effects of the capillary tube geometry and the inlet condition of the tube, dimensionless parameters were chosen. The new correlation was also based on the Buckingham Pi theorem. This correlation predicts 86.67% of the present experimental data within a relative deviation of -10% to +10%. The predictions by this correlation were also compared with results in published literature.
机译:毛细管是在小型蒸气压缩式制冷系统(例如窗户空调,家用冰箱和冰柜)中使用的重要控制装置。本文基于绝热毛细管的测试结果得出了无量纲相关性,该绝热毛细管通过使用89.3%丙烷和10.7%丁烷(HCM)的烃类制冷剂混合物通过管道的质量流量。使用Taguchi方法(一种统计实验设计方法)。这种方法探索了这种性质的研究所具有的经济效益,在这种性质下,仅需进行少量实验即可获得有效结果。考虑到毛细管几何形状和管的入口条件的影响,选择了无量纲参数。新的相关性也基于白金汉Pi定理。这种相关性可在-10%至+ 10%的相对偏差范围内预测当前实验数据的86.67%。还将这种相关性的预测与已发表文献中的结果进行了比较。

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