Faz deǧişim malzemeli isi deǧiştirici üzerine parametrik bir çalişma

Abstract

In this work a phase change material unit which consist of shell and tube heat exchanger in which tubes are vertical and filled with a phase change material that melts at 23°C is used. First a numerical method for the design of phase change material cooler is presented then a numerical solution is obtained and compared with results of published analytical solution. The volume of phase change material heat exchanger is taken constant and a parametric study such as tube pitch, fans speed and phase change material is made. For all four cases of tube arrangement, it is found that as the tube pitch doubled in the direction of the flow, the total melting time decreased about 38%.