DEVELOPMENT AND EVALUATION OF DUAL AXIS SOLAR FRESNEL SYSTEM FOR COOKING APPLICATION.
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Date
2019-12-21
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
The study entitled “Development and evaluation of dual axis solar Fresnel system for cooking application” was undertaken with the objective to design and develop solar Fresnel system for domestic cooking and to study of techno economic feasibility of the system. The study was conducted in Department of Unconventional Energy Sources & Electrical Engineering, Dr. PDKV, Akola. In many countries people rely on wood and biomass for heating house and cooking. The energy and fossil fuel demand over the world is increasing exponentially while fossil fuel reserves have started depleting. The solar energy is used for cooking and space heating for domestic and commercial purpose. Solar cooking is one of the promising options to resolve such cooking and space heating problem hence in this research work an attempt has been made to design dual axis solar Fresnel system, which comprised of Fresnel lens, solar panel, solar tracker, control panel and cooking pot of 2-liter capacity. The performance of the system was evaluated in the term of water boiling test winter and summer season. The system successfully operated from 10 A. M. to 6 P. M. during water boiling test and food material were cooked viz, tea, rice, egg, mung dal, tur dal and chicken etc. Three type of oil were used having oil code 66, 68 and 15W40 for heat supply on indirect mode to the cooker. Among these the thermal performance of oil type 66 was found to be best as it achieved maximum temperature of 135 ̊C in winter and 145 ̊C in summer season, respectively. During the test run three types of flow rates were maintained as 0.5, 1 and 1.5 lpm in which the maximum heat achieved at flow rate of 1.5 lpm. also, three type of focal length were used for the performance was evaluated at focal length 1450, 1650 and 1850 mm for testing maximum temperature at focal point on heat exchanger to supply heat in cooking pot. Among the other focal length 1850 mm was found best and concentration point temperature achieved in winter and summer season were 249 and 255 °C, respectively. The food material like use tea, rice, eggs, mung dal, tur dal and chicken were cooked in the system took 20, 25, 30, 45, 60 and 75 min, respectively for completely cooking. The maximum and minimum efficiency of indirect solar cooker by Fresnel lens was found to be 27.62 and 12.09 per cent, respectively and could be further improved by using advance heat absorbing materials. The maximum and minimum steam temperature inside cooker was found to be 122 and 120 ̊ C which sufficient to cook the food material. The maximum average energy efficiency of indirect solar cooker was found to be 37 percent which showed that heat energy could be utilized efficiently during test run. The optimize input parameter viz, oil type, focal length and flow rate were found to be 66, 1.5 lpm and 1850 mm, respectively. Based on optimized parameter maximum cooking pot efficiency, temperature of oil and temperature of water in cooking pot were found to be 25.50 per cent, 108.60 ⁰C and 102.261 ⁰C, respectively. It is conducted that the dual axis solar Fresnel lens system was found to be economical having the payback period 2 years, 11 months & 3 days and the system can be integrated in present energy scenario for cooking application where sunshine is available in abundance & throughout the year.
Description
Dual axis tracking system has been developed foe indirectly cooking system application in agriculture utility. The system is suitable for cooking application. System saves the electricity and use solar energy for cook food large scale family and community.
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Citation
DERE, AMARDEEP JANRAO. (2019). Development and evaluation of dual axis solar fresnel system for cooking application. Department of Unconventional Energy Sources and Electrical Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. Ph. D. 2019. Print. xx, 212p. (Unpublished).