Investigation on Thermal Energy Storage Characteristics of Thermocline Tank with Mixture Filler Materials

Jing Xiao Han; Yong Ping Yang; Jia Rui Wu; Hong Juan Hou

doi:10.4028/www.scientific.net/AMM.687-691.3512

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 687-691Investigation on Thermal Energy Storage...

Investigation on Thermal Energy Storage Characteristics of Thermocline Tank with Mixture Filler Materials

Abstract:

An experimental setup for indirect contact sensible heat TES was built. Air was chosen as the heat transfer fluid to flow inside the tubes and carry heat, while the mixture in the tank contacts the outside of the tubes. The results were also compared with pure sand filler material. It can be found that and the TES efficiency of mixture increased by 18% compared with pure sand, what’s more, its temperature gradient along the radical direction was also lower, while its temperature gradient along the axial direction was higher, so the mixture was better. Under various air inlet temperature (60-70°C), TES performances were similar, but for real power generation, further work on optimism temperature range was needed. Air velocity was also important to TES tank, lower velocity can not only increase the TES efficiency, but also enlarge the thermocline temperature gradient.

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Periodical:

Applied Mechanics and Materials (Volumes 687-691)

Pages:

3512-3515

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.687-691.3512

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Online since:

November 2014

Authors:

Jing Xiao Han*, Yong Ping Yang, Jia Rui Wu, Hong Juan Hou

Keywords:

Filler, Mixture, Sand, Solar Energy, Thermal Energy Storage, Thermocline

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* - Corresponding Author

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