Enhancement of Heat Transfer Rates by Coiled Wires During Forced Convective Condensation Of R-22 Inside Horizontal Tubes

摘要

In this work, heat transfer augmentation by coiled wire inserts during forced convection condensation of R-22 inside horizontal tubes has been studied. The test-condenser con- sisted of four separate coaxial double pipe test sections assembled in series. It was a counter flow heat exchanger where R-22 condensed inside the inner tube by rejecting heat to the coolant flowing in the annulus.