Solar energy is becoming an alternative for the limited fossil fuel resources. One of the simplest and most direct applications of\r\nthis energy is the conversion of solar radiation into heat, which can be used inWater Heating Systems. Ogun State in Nigeria was\r\nused as a case study.The solar radiation for the state was explored with an annual average of 4.775kWh/m2 recorded.The designed\r\nsystem comprised storage tanks and the collector unit which comprises wooden casing, copper tube, and aluminium foil. Test\r\nresults for the unlagged and lagged storage tanks for water temperature at various angles of inclination (2.500Ã?°ââ?¬â??20.000Ã?°) were on\r\nthe average 27.800Ã?°C and 28.300Ã?°C, respectively, for the inlet temperature and 60.100Ã?°C and 63.000Ã?°C for the outlet temperature,\r\nrespectively.The efficiency of the SolarWaterHeating System was 72.500%and the power saved 2.798kW.The cost of the unit is put\r\nat 1121,400 ($145) as at August 2012. The unit developed can be applied for the purpose of reducing the cost of energy, dealing with\r\nenvironmental challenges, and improving the use of energy, hence serving as a climate mitigation process as this can be extended\r\nfor water heating for domestic and other industrial purposes.
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