Extensive Performance Evaluation of Dual Booster Mirror Solar Cooker under Tracking Free Conditions

The aim of this research work is to conduct an extensive performance evaluation of a box type dual Booster Mirror solar cooker under tracking free conditions. To cope up with the need for continuous adjustment of the cooker during the cooking operation the optimal tilt angles of the Booster Mirrors have been calculated through numerical calculations for the location of 34 latitude. To evaluate the Performance parameters of the cooker, tests under tracking free conditions have been carried out and parameters such as, First and Second Figure of Merit, Cooking power, exergy efficiency and the Quality Factor, are evaluated for the BSC. Moreover, the cooker is tested onfield and different types of food items are cooked. The results indicate that orienting the Booster Mirrors at their respective optimal angles provides a viable and convenient alternative to the need for continuous tracking of the sun during cooking hours. With this technique the said cooker can be used for cooking 6.4 kg of 6 different dishes in a single day i-e. from 9:00 Am to 3:00 Pm in two batches. Keywords— Optimal tilt angles, Box Type Solar Cooker, Tracking free conditions