A homogeneous flow model for adiabatic helical capillary tube

被引:0
作者
Khan, Mohd Kaleem [1 ]
Kumar, Ravi [1 ]
Sahoo, Pradeep K. [1 ]
机构
[1] Indian Inst Technol Roorkee, Dept Mech & Ind Engn, Roorkee, Uttar Pradesh, India
来源
ASHRAE TRANSACTIONS 2008, VOL 114, PT 1 | 2008年 / 114卷
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中图分类号
O414.1 [热力学];
学科分类号
摘要
A mathematical model has been developed to predict the performance of a helical capillary tube under adiabatic flow conditions. The proposed model can predict the length of the adiabatic helical capillary tube for a given mass flow rate or the mass flow rate through a given length of capillary tube. The effect of parameters like condensing pressure, degree of subcooling, pitch of helix and the coil diameter has been studied for the flow of refrigerant R-134a through the adiabatic helical capillary tube. A capillary tube selection chart has been developed, using the proposed model, to predict the mass flow rate of refrigerant R-134a through a capillary of size 1.07 mm diameter and 2 m length.
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页码:239 / 249
页数:11
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