 Effect of rectangular hot water tank position and aspect ratio on thermal stratification enhancementBurak Kurşun and Korhan Ökten Renewable Energy, 2018, vol. 116, issue PA, 639-646 Abstract: Thermal stratification is an important factor increasing the efficiency of hot water storage tanks used for thermal energy storage. In this study, the effects of the position of a rectangular hot water tank and the aspect ratio on the thermal stratification were investigated numerically. In this direction, a numerical analysis was carried out for the different angle of the water tank with the horizontal axis (α) and the different aspect ratio of the water tank (D/H). Numerical analyses were performed at 0–60° range of angle values and 0.5–1 range of aspect ratio values. The results obtained from the analyses indicate that positioning of the hot water tank at different values from α = 0° provides thermal stratification enhancement. Reducing the aspect ratio of the tank contributes to the thermal stratification only for the angle of α = 0° significantly. In other angle values, the influence of different aspect ratios on the thermal stratification is negligible level. The highest temperature difference in the hot water tank occurred for the angle of α = 45° and aspect ratio of D/H = 0.5. Keywords: Energy storage; Natural convection; Thermal stratification; Water tank (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:116:y:2018:i:pa:p:639-646 DOI: 10.1016/j.renene.2017.10.013 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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