Experimental Setup Design for Investigation of Flow Boiling Heat Transfer Characteristics of R-134a in Helically Coiled Tubes with Smooth and Corrugated Surfaces

Abstract

Helically coiled tubes with two-phase flow are widely used instruments in numerous fields such as heating and cooling, energy production industry, chemical plants, etc.In academy and industry, optimum design considering the geometrical parameters and optimum working conditions of the heat exchangers are tried to find out in order to enhance the thermal performance, since the energy used is limited and valuable.In this study, an experimental setup for the investigation of flow boiling heat transfer characteristics in shell and helically coiled tube heat exchangers is presented and the procedure of the system is introduced.This paper can be considered as a guide for the researchers willing to design an experimental setup to investigate heat transfer characteristics of any fluids in helically coiled tubes or similar ones.