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Direct contact thermal energy storage system using Na2CO3·10H2O solution

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  • Mulyono, Panut

Abstract

The volumetric coefficient of heat transfer and the energy storage capacity in a direct contact thermal energy storage system using Na2CO3·10H2O solution as thermal energy storage medium have been investigated. Hot kerosene was used as a heat transfer fluid. The experiments were carried out by bubbling hot kerosene from the bottom of a column containing Na2CO3·10H2O solution. The column used in this experiment was made from glass of 3 mm in thickness with the inside diameter of 7 cm and 100 cm in height. The effects of kerosene flow rate and kerosene bubble diameter to the volumetric coefficient of heat transfer and the storing rate of energy have been studied. The volumetric coefficient of heat transfer was strongly affected by the flow rate of the kerosene. The effect of the kerosene flow rate on the storing rate of energy was relatively high, while the effect of the bubble diameter was small.

Suggested Citation

  • Mulyono, Panut, 2004. "Direct contact thermal energy storage system using Na2CO3·10H2O solution," Energy, Elsevier, vol. 29(12), pages 2573-2583.
    • Handle: RePEc:eee:energy:v:29:y:2004:i:12:p:2573-2583
    DOI: 10.1016/j.energy.2004.03.032
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    Cited by:

    1. Guo, Shaopeng & Zhao, Jun & Wang, Weilong & Yan, Jinyue & Jin, Guang & Wang, Xiaotong, 2017. "Techno-economic assessment of mobilized thermal energy storage for distributed users: A case study in China," Applied Energy, Elsevier, vol. 194(C), pages 481-486.
    2. Mawire, A. & McPherson, M. & van den Heetkamp, R.R.J. & Taole, S.H., 2010. "Experimental volumetric heat transfer characteristics between oil and glass pebbles in a small glass tube storage," Energy, Elsevier, vol. 35(3), pages 1256-1263.

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