Design and Development of Efficient Domestic Electric Cum Solar Oven

Abstract

An improved design is proposed to investigate the characteristic study of an electric cum solar oven (ECSO) using circular cover in which both solar energy and electricity have been utilized as energy source for different food items. The newly designed solar oven has been fabricated by employing indigenous raw materials and it provides more reliable performance than the previously used solar oven for cooking of agricultural products and conventional food items. The new observations show that the cooking process of products is dependent on both the circular shape and climate conditions. The electrical heating has been used in combination with the solar energy to enhance the oven heating during the periods of lesser sunshine. The base of the oven was made up of the electric heating plate that is controlled by timer and an electric thermostat is used to control the heating of the oven. The performance and parameters obtained from the newly designed solar oven are found to be excellent than that obtained from previously known solar ovens for cooking of various edibles. It is shown that this newly designed solar oven can be efficient for cooking and preservation of all edible stuffs and appearance of cooked food products. The performance of the solar cooker has been checked under the local climate conditions of Faisalabad city to observe its efficiency with satisfactory results.

The Efficiency of a Solar Cooker in Pakistan’s Quetta Region

“…The output power is calculated as: (14) …where M w is the mass of water, c w is the specific heat of water, and ΔT is the temperature difference from ambient to 95ºC. The input power is: (15) The equation for the efficiency of solar cooker becomes: (16)…”

“…A black stone instead of an absorber tray was used to store solar energy. Hence they solved the problem of late evenings [16]. Different types of storage materials have been tested.…”

Fuzzy logic-based water heating control methodology for the efficiency enhancement of hybrid PV–PEM electrolyser systems

“…The sun provides about 5:4*10 24 joules/year of energy to the earth which presents 30,000 times the current global energy consumption [1]. Because of the solar energy intermittency, it has been stored essentially in batteries or injected directly in the electrical networks.…”