Design and Development of a Photovoltaic-Powered DC Vapour Compression Refrigerator with an Incorporated Solar Tracking System

M. G. Sobamowo, B. Y. Ogunmola, Sikiru O. Ismail, I. A. Ogundeko

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Abstract

In this work, the design and development of a photovoltaic-powered dc vapour
compression refrigeration system for developing countries such as Nigeria is presented. The effects of the variations of compressor speeds on the performance of the refrigerator were investigated. From the field performance test results of the system, at the compressor speeds of 2000, 2500, 3000 and 3500 rpm, the cooling rates were found to be 0.231, 0.485, 0.667 and
0.800oC/min, respectively. Also, it was found that the PV- DC refrigerator achieved the same results at the compressor speed of 3500 rpm as ac refrigerator of the same size connected to electricity from the national grid. There was a significant improvement in the performance of the refrigerator with the use of a solar tracker. The system was tested in a region in Nigeria with an
atmospheric temperature range of 25-33oC and lowest solar insolation range 4000-4500 Wh/m2. This therefore shows that its applicability to different climatic regions in Africa is quite enormous and it could be used for perishable food storage, improvement in the health services and living conditions in remote and rural areas that are unable to access electricity from the grid.
Original languageEnglish
Pages (from-to)19-28
JournalInternational Journal of Mechanical Computational and Manufacturing Research
Volume1
Issue number1
Publication statusPublished - 2012

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