Working principle of box-type solar container heating unit

A solar box cooks because the interior of the box is heated by the energy of the sun. Sunlight, both direct and reflected, enters the solar box through the glass or plastic top. It turns to heat energy when it is absorbed by the dark absorber plate and cooking pots. This paper talks about the recent development of the box-type solar cooker. The paper discusses the principles and classifications of various parameters that affect the performance, energy, and exergy related to the solar cooking system. In line with the sustainable development goals of the UN. With an understanding of basic principles of solar energy and access to simple materials such as cardboard, aluminum foil, and glass, one can build an effective solar cooking device. This paper outlines the basic principles of solar box cooker design and identifies a broad range of potentially. iner with multiple or single glass (or other transparent material) covers [1,3,4]. The box-type of solar cooker is based on the "greenhouse effect," in which transparent glazing allows shorter wavelength solar radiation to pass through but is opaque to much of the longer wavelength radiation. So, the inner walls and bottom of metallic box to be used for making solar cooker are painted black to increase absorption of heat. This box is covered by a thick transparent sheet of glass. When the box with glass cover is placed in the sunlight, the glass cover allows the infra red rays present. There is an urgent need to develop an alternate, acceptable, hygienic, and low-cost method of cooking, which can be met by Box type Solar Cooker (BSC) due to its compact form and low-cost attributes. But its inability to cook during off-peak hours makes it difficult to adopt as an alternative.