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The Allahabad Farmer Vol. LXVIII, January - 2013 No. 2Comparison between Two Models of Solar Cooker byUsing Different Parameters Time and Temperaturein Roasting of GroundnutsVerma Rekha* and Parvez Razia**ABSTRACTSolar energy has the greatest potential of all the sources of renewable energy.The power intercepted from the sun is thousands times larger than the presentconsumption rate on the earth of all commercial energy sources (Sukhatme1999). The present study "Comparison between two models of solar cooker byusing different parameters time and temperature in roasting of groundnuts"was undertaken with the objective of to compare the identified models of solarcookers in three seasons (summer, winter and rainy) and two metals (Aluminumand Stainless steel) for different parameters time and temperature in roasting ofgroundnuts. The study was conducted at Department of Family ResourceManagement College of Home Science and Women's Development AllahabadAgricultural Institute-Deemed University Allahabad U.P. India during Jan 2006to Jan 2009. Average sunshine hours 8.5 per day and sunny days about 250days/yr. Similar statement was given by MNES (2003) that the daily averagesolar energy incident at many places ranges between five to seven kWH/m2 andthere were as many as 250 to 300 clear sunny days each year. It was concludedfrom the average time and temperature of both solar cooker models (BSC andPSC) gave better performance during summer in comparison to other seasonsand also Al cooking pots were best in roasting of groundnuts. Better performanceof Box solar cooker than Parabolic solar cooker in preparation of roasting ofgroundnuts.*Assistant Professor, ** Associate ProfessorFamily Resource Management, Ethelind School of Home Science, SHIATS, Allahabad – 211007 (U.P.)30
Verma Rekha and Parvez RaziaINTRODUCTIONSolar energy has the greatest potential of all the sources of renewable energy. Thepower intercepted from the sun is thousands times larger than the present consumptionrate on the earth of all commercial energy sources (Sukhatme 1999). Thus, in principle,solar energy could supply all the present and future energy needs of the world continuouslyRai, G.D. (2006) was found in India, energy consumed for cooking, shares majorportion of the total energy consumed in a year. In India about 70 per cent of people livein villages. One of the most important activities of villages with regard to energyconsumption is in household activities. Singh and Sahay (2001) conducted a study atCIAE Bhopal and reported that household activities consumed 78.6 per cent energyinputs of a village. Most of the energy in rural home is for cooking. In a study of energyuse pattern in a typical village of Bhopal district, Ganguli and Pandey (2001) foundthat nearly 74 per cent of the energy used in the village was for cooking alone.Box Solar Cooker: Box cookers cook at moderate to high temperatures andoften accommodate multiple pots. Worldwide, they are the most widespread. A box solarcooker is a slow cooking device useful for small families. It can cook four dishes at atime and save around three LPG cylinders in a year if used regularly. (Anonymous2003).Parabolic Solar Cooker: A parabolic solar cooker cooks fast at high temperaturesbut requires frequent adjustment and supervision for safe operation. A common pressurecooker is used for cooking. The parabolic solar cooker is a fast cooking device useful forhome. It can cook all type of food including chapattis for about 10 to 15 persons; eachdish is cooked in about half an hour. The cooker can save around 5 to 10 LPG cylindersdepending upon its use in homes or small establishments in one year. (Anonymous2003).Utilization of solar energy is of the great importance in India, since it lies in atemperate climatic region of the world where sunlight is in abundance for a major part ofthe year. Many advanced and developing countries including India are developing severalcooking devices based on solar energy. The domestic cooking devices are solar cooker,solar oven, solar steam cookers etc. The solar cooking devices have long life (10-15years) and require easy installations. In our Country energy consumed for cooking sharesa major portion of the total energy consumed in a year, which is mostly, received fromconventional and commercial energy resources.Keeping these facts in view the present study was undertaken to compare theidentified models of solar cookers in three seasons (summer, winter and rainy) and two31
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