Namrata Sengar, Prabha Dashora, Sunita Mahavar, R.C. Punia
The paper presents a mathematical formalism for studying energy distribution in solar hot boxes for global solar radiation. Formalism has been developed as a general case for a flat plate tilted collector with off-south orientation considering a number of parameters. It has been applied to a hot box solar cooker kept horizontally in nontracked south facing mode. The wall height and the wall inclination have been incorporated in the development of the mathematical model along with a number of parameters such as tilt of the collector, transmissivity-absorptivity, aperture area, base plate area, hour angle, angle of incidence, solar and surface azimuth angle, solar insolation etc. for the estimation of rate of heat absorbed by the collector considering the global solar radiation. This formalism may prove to be a simple and an efficient tool in the design and development of improved solar hot box cookers with better efficiency and cost-effectiveness.
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