Thermodynamic analysis of absorption refrigeration cycles by parabolic trough collectors

The purpose of this study is to numerically investigate the performance a solar physical surface absorption cooling system, in which activated carbon/methanol used as working pair, placed inside parabolic-shaped collector. governing mathematical model issue based on equations conservation mass, energy, and thermodynamics process. are discretized using fully implicit finite difference method, Fortran computer program was simulated. A comparison with results previous laboratory numerical studies validated model. At each point bed, temperature, pressure, mass refrigerant absorbed during absorption/discharge process were calculated. In addition, effects bed diameter, amount radiation, source pressure evaporator condenser investigated coefficient specific power system. According built conditions capacity system equal 0.12 45.6 W/kg, respectively.