Design and Development of Heat Storage Device for Solar Cooker

Solar cookers can be used to save fuel and make the cooking of food environmentally friendly. Only and intermittent solar energy is available during the day. Thus, for indoor solar cooking demands thermal energy storage is very important and guarantees continuity of use. The overall system is designed for 1 kg of rice to be cooked theoretically in 45 minutes, which takes 421 watts from the energy stored by the sun. In view of the many losses, the energy transfer to water has been somewhat reduced and the temperature has reached 355 K, as demonstrated by the experimental result. Even if it contains low energy, energy from the TES is reduced to the environment, when it is discharged in the isolated tank. The experiment and analytical calculation differ; however, because the model has not taken into account the basic losses and variations of sun radiation. After the solar collector is lifted the TES is discharged, but it is instantly placed on the isolated tank and loaded by the water pot. Thus, after 40 minutes, the maximum water temperature is 355 K.