Analysis of Sustainable Hot Water Supply for Domestic Application in Yenagoa, Bayelsa State

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Author(s) Ainah Priye Kenneth | Afa John Tarilanyo | Kelvin Benjamin Ayibapreye
Pages 65-72
Volume 4
Issue 2
Date February, 2015
Keywords Ergonomics, Anthropometry, Furniture, Body Dimension, Library, University, Nigeria.

Due to the high cost of tariff of the public grid system, the maintenance and running cost of the isolated generators, it was necessary to look at an alternative source of providing hot water supply for domestic and other applications. The enormous potential of solar radiation in Nigeria is a viable option for the use of photo voltaic and solar thermal systems to convert the solar energy to solve our growing energy needs. The paper therefore, is aimed at analyzing and designing a solar thermal system for an average domestic building hot water requirement for a family of five using the parameters of an evacuator tube solar collector in Yenagoa city, Nigeria. From the analysis, the hot water requirement for the building load was estimated at 30 litres for rainy and 20 litres for dry season. Due to the high solar intensity the load was increased to 50 litres to maintain the average temperature. The assumed constant temperature of the main water supply was 18°C and 22°C (rainy and dry seasons). With a collector area of 2.1m 2 and the hot water supply temperature at 65°C, and the load of the building was estimated to be 29.5MJ for the rainy seasons and 54MJ for the dry seasons. From the design it was observed that the design results satisfied the maximum temperature limit of the storage tank and satisfied the hot water need for a household.
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