Condensation frictional pressure drop characteristic of R-600a inside the horizontal smooth and dimpled helical coiled tube in shell type heat exchanger

被引：26

作者：

Solanki, Anand Kumar ^{[1
]}

Kumar, Ravi ^{[2
]}

机构：

[1] Gayatri Vidya Parishad Coll Engn, Dept Mech Engn, Visakhapatnam 530048, Andhra Pradesh, India

[2] Indian Inst Technol, Dept Mech & Ind Engn, Roorkee 247667, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2020年 / 154卷

关键词：

Condensation; Frictional pressure drop; R-600a; Dimpled helical coiled tube; WATER 2-PHASE FLOW; HYDROCARBON MIXTURES; SINGLE-PHASE; STEAM-WATER; R-134A; REFRIGERANT; PERFORMANCE; CFD;

D O I：

10.1016/j.ijthermalsci.2020.106406

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, an experimental study on condensation frictional pressure drop of R-600a inside smooth and dimpled helical coiled tubes were examined. The experiments were performed at saturation temperature of 35 degrees C, and 45 degrees C with mass fluxes of 75, 115, 156 and 191 kg m(-2) s(-1). The effect of vapor quality, mass flux and saturation temperature on the frictional pressure drop were inspected. Moreover, the results obtained from smooth and dimpled helical coiled tube were also compared from those smooth straight tube at same operating condition. The results showed that the dimpled helical coiled tube offers higher frictional pressure drop compared to the smooth straight tube and smooth helically coiled tube. Finally, the correlations have been proposed to predict the frictional pressure drop during condensation of R-600a inside smooth and dimpled helically coil tube that predict the data within +/- 20%.

引用

页数：11

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