Determination of Condensation Heat Transfer Coefficient inside a Horizontal Pipe at High Pressure using Experimental Analysis

Abstract

It is observed that simultaneous flow of liquid and vapor result in different flow regimes due to wetting characteristics of the liquid and interfacial shear and momentum exchange between the liquid and vapor based on the counteracting forces of gravity and vapor shear. In addition, flow regimes are also affected by channel cross section, orientation and based on whether the flow is external or internal flow. Two phase flow in a horizontal tube has widespread applications, particularly in the condensers and evaporators of refrigeration and air conditioning systems. The paper discusses the experimental analysis to evaluate the two phase heat transfer coefficient and pressure drop and an attempt is made to compare the experimental results with the existing correlations.