General Equation for the Design of Capillary Tubes

[+] Author and Article Information
Tuncay Yilmaz, Saban Ünal

Çukurova University, Department of Mechanical Engineering, 01330 Balcali-Adana, Turkey

J. Fluids Eng 118(1), 150-154 (Mar 01, 1996) (5 pages) doi:10.1115/1.2817493 History: Received November 05, 1993; Revised August 24, 1995; Online December 04, 2007


Capillary tubes are used widely in small refrigeration systems. It is necessary to design the capillary tube, but there does not exist any analytical equation which allows the determination of capillary tube length or mass flow rate for all refrigerants. In this work, an analytical equation is derived which allows to design the capillary tubes. The comparison with existing methods and experimentally obtained values using the refrigerants R12, R22, R113, R114, R134a, and R600a has turned out to be satisfactory.

Copyright © 1996 by The American Society of Mechanical Engineers
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