Dynamic Modeling and performance analysis of an air conditioning system using Matlab/Simscape

Abstract

This study aims to utilize Simscape/MATLAB tool potential to investigate the dynamic behavior of an air conditioning system and analyze the effects of many parameters on the performance of the system. Each component has a set of adjustable parameters that enables simulation of the real-time operation. The responses of the system to the variations in set point temperature and insulation levels are investigated and discussed. Improving the insulation level and increasing the set point temperature resulted in increased stopping periods and in decreasing the cooling load, thus reducing the energy consumed by the compressor and fans, and providing more suitable operating conditions. It was found that improving the level of insulation by replacing Ultra-High Performance Concrete with Foamed Concrete in the construction of the walls and the roofs and replacing the single-glazed windows with double-glazed ones resulted in energy savings up to 61.7%. It was also found that raising the set point value from 18 °C to 26 °C led to savings in energy consumption up to 23.4%. The results illustrated that Simscape is an efficient simulation tool and provides a comprehensive insight into the performance characteristics of air conditioning systems.