DESIGN AND FABRICATION OF A SOLAR WATER HEATING SYSTEM
Abstract
Due to the epileptic power supply in Nigeria, other energy sources are being sought. This project involves the design and fabrication of an efficient solar water heating system. The materials for the components were then selected with consideration to the design calculations, machinability, market availability and cost of the materials.
The system was then constructed using the selected materials. The system consists of a storage tank of 30 litres capacity, a flat-plate collector with a single layer of glass on top, and a flow channel. The thermosiphon water flow principle and the pump assist water flow principle was applied to the system and an average flow rate of 0.15 litres /min was recorded.
The system was tested for three days, the temperature of hot water and heat absorbed increased from 390c and at 9:00 am on the first days of testing and it peaked at 500c at 1. 00p.m and dropped to 400c 315KJ at 3.00 pm 4pm. This trend was seen to be recurrent for the other two days in which the test was carried out.
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