Investigating the Energetic and Exergetic Performance of a Solar Based Cooling-Heating-Low Temperature Refrigeration System

A novel trigeneration system powered by helically coiled tubes embedded solar collector is proposed. A study using ANSYS-FLUENT simulation was conducted to investigate the impact of coil torsion and coil curvature ratio. The EES software examined the system from energy and exergy perspectives, which showed that coil curvature ratio has positive impact on temperature of solar fluid, whereas coil torsion has negative effect. At 0.032 coil torsion, temperature increased by 28.9% as curvature ratio increased from 0.063 to 0.095 at 1,200 W/m2. From solar exergy supplied, 13.29% is produced exergy, 1.98% is lost exergy, and 84.73% is the exergy destroyed.