Development of Ejector Cycle for Solar Air-Conditioning System Powered by Stored Thermal Energy Part 2. CFD Analysis for Ejector Design
Abstract
From the viewpoints of addressing the issue of global warming and depletion of fossil energy resources, utilization of renewable energy, which can reduce CO2 emission, is important. On the other hand, demands for air-conditioning are increasing in many developing countries. Therefore, an air-conditioning system that works with renewable energy is currently developed. Figure 1 shows the schematic diagram of the ejector refrigeration cycle, which was produced by Chan et al. (2008). This cycle can provide cooling (at evaporator) by using solar thermal energy (at generator) with drastically small consumption of electricity (at pump). Furthermore, this system can utilize lower temperature thermal energy sources such as solar thermal energy, or exhaust heat at low temperature of 60.