“…The result showed that the thermal efficiency reached 69.1%; however, challenges are to compensate for the high pressure drop. Chadge et al [12] experimentally and numerically modified the simple solar water heater with Vtrough reflectors and compare the experimental results with simulation using Ansys software. The authors concluded that the efficiencies were 79.5%, 91%, and 84%; while using V-trough reflector at an inclination of 65, 70, and 75; respectively with absorber plate compared to traditional solar water collector during typical days of experimentation.…”