SIMULINK MODEL FOR A HEAT-EXCHANGER

Abstract

The main purpose of the dynamic analysis is to study the behavior of the phase-change heat-exchanger as component of the whole refrigeration system. The matter of modification of the operating conditions has been treated very often in the last few years because the refrigeration systems "on the field" are stressed by changes in temperature regime, pressure mass flow, heat transfer conditions and, especially, by changes of the thermal load. These regards have imposed the approach of the refrigeration systems from the dynamic point of view of the functioning regime. The major advantage brought by this dynamic approach is that it makes possible the designing and the analysis of a refrigeration system before its physical existence and a constructive and functional optimization which can be made with lower costs