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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

TOWARDS ENERGY EFFICIENT LATENT HEAT STORAGE TANKS WITH HEAT TRANSFER FLUID CHANNELS AND FINITE INLET POWER

Get access (open in a dialog) DOI: 10.1615/IHTC16.ctm.023248
pages 3781-3788

Résumé

In this research, latent heat storage tanks are modelled with a water flow with a finite total heat capacity. Because of the finite heat capacity of the water flow, the Phase Change Material (PCM) will not melt uniformly. This is in contrast to the case were large water flows induce a constant wall temperature for the PCM. In this paper, we show that increased charging efficiencies can be obtained for high flow lengths and reduced PCM layer thicknesses. Additionally, both storage and charging performance increase for lower water volume fractions. Further, we show that multiple stage design enables improved charging performance and reduced pumping power requirements.