Exergy Analysis of a Domestic Type Solar Parabolic Dish Cooker

An experimental investigation of parabolic dish solar cooker for exergy analysis is presented in this study. The experiments were carried out using 3 litres of water as cooking fluid. Commercially available parabolic dish domestic concentrator (SK14) was used to focus the solar radiations whereas a blackened cooking vessel was used as a receiver. The average ambient temperature recorded for the experiment was 305.8 K and the mean ambient velocity of air was recorded as 2.03 m/s. The exergy efficiency varied from 1.79 to 2.47% for average solar radiation of 750 W/m2. The Therefore, performance is acceptable and recommended to use as affordable way of cooking using solar energy.