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High density polyethylene spheres with PCM for domestic hot water applications: Water tank and laboratory scale study

Navarro, Lidia, Barreneche, Camila, Castell, Albert, Redpath, David A.G., Griffiths, Philip and Cabeza, Luisa (2017) High density polyethylene spheres with PCM for domestic hot water applications: Water tank and laboratory scale study. Journal of Energy Storage, 13 . pp. 262-267. [Journal article]

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URL: http://www.sciencedirect.com/science/article/pii/S2352152X1730083X

DOI: 10.1016/j.est.2017.07.025

Abstract

Renewable energy is a potential alternative energy provider with fewer CO2 emissions. However, the mismatch between energy supply and demand is the main disadvantage. Therefore, thermal energy storage becomes an essential technology for enhancing renewable energy efficiency and providing energy supply to the end user. In solar thermal energy systems, hot water tanks are widely used as sensible heat storage technology. Moreover, water storage usually requires large volumes and their improvement has been studied in terms of shape and arrangement. Latent heat storage materials are a potential technology for implementation in water storage tanks in order to reduce their volume and to enhance their efficiency. In this paper, the incorporation of shape high density polyethylene spheres with PCM into domestic hot water tanks is studied. Undesired results obtained in the water tank set-up lead the authors to analyse the PCM leakage in the laboratory. Laboratory analysis pointed out that the PCM-spheres must be thermally cycled and cleaned before their implementation in real application of domestic hot water in order to stabilize the PCM content inside the PCM- spheres

Item Type:Journal article
Keywords:Thermal energy storage (TES) Water tank Phase change materials (PCM) Encapsulation Stabilization
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute > Centre for Sustainable Technologies (CST)
Built Environment Research Institute
ID Code:38503
Deposited By: Professor Philip Griffiths
Deposited On:04 Sep 2017 15:35
Last Modified:17 Oct 2017 16:31

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