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Performances of modern domestic hot-water stores

Author

Listed:
  • Spur, Roman
  • Fiala, Dusan
  • Nevrala, Dusan
  • Probert, Doug

Abstract

Several designs of domestic hot-water (DHW) store, including those with immersed heat-exchangers (HXs), are commercially available. So there is a need for a method that accurately assesses their effectivenesses. In this study, the behaviours of a novel stratified, and two standard, stores were analyzed. The TRNSYS simulation software was enhanced to simulate the functioning of those stores. The resulting mathematical model was validated using measurements obtained from experiments, which required a realistic daily DHW draw-off for testing the DHW systems. Evaluation of a user-related effectivenesses (URE) for each of the three tanks tested showed that the inner configurations of: (i) the tank and (ii) the immersed HX can significantly affect the store's performance. The stratified store was up to 32% more effective than the commonly employed commercially-available store.

Suggested Citation

  • Spur, Roman & Fiala, Dusan & Nevrala, Dusan & Probert, Doug, 2006. "Performances of modern domestic hot-water stores," Applied Energy, Elsevier, vol. 83(8), pages 893-910, August.
    • Handle: RePEc:eee:appene:v:83:y:2006:i:8:p:893-910
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    Cited by:

    1. Kazmi, H. & D’Oca, S. & Delmastro, C. & Lodeweyckx, S. & Corgnati, S.P., 2016. "Generalizable occupant-driven optimization model for domestic hot water production in NZEB," Applied Energy, Elsevier, vol. 175(C), pages 1-15.
    2. Zhang, Xingxing & Shen, Jingchun & Lu, Yan & He, Wei & Xu, Peng & Zhao, Xudong & Qiu, Zhongzhu & Zhu, Zishang & Zhou, Jinzhi & Dong, Xiaoqiang, 2015. "Active Solar Thermal Facades (ASTFs): From concept, application to research questions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 32-63.
    3. Kumar, Naveen & Chavda, Tilak & Mistry, H.N., 2010. "A truncated pyramid non-tracking type multipurpose domestic solar cooker/hot water system," Applied Energy, Elsevier, vol. 87(2), pages 471-477, February.
    4. Wong, L.T. & Mui, K.W. & Guan, Y., 2010. "Shower water heat recovery in high-rise residential buildings of Hong Kong," Applied Energy, Elsevier, vol. 87(2), pages 703-709, February.
    5. Heier, Johan & Bales, Chris & Martin, Viktoria, 2015. "Combining thermal energy storage with buildings – a review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 1305-1325.
    6. Baeten, Brecht & Confrey, Thomas & Pecceu, Sébastien & Rogiers, Frederik & Helsen, Lieve, 2016. "A validated model for mixing and buoyancy in stratified hot water storage tanks for use in building energy simulations," Applied Energy, Elsevier, vol. 172(C), pages 217-229.
    7. Mawire, Ashmore & Taole, Simeon H., 2011. "A comparison of experimental thermal stratification parameters for an oil/pebble-bed thermal energy storage (TES) system during charging," Applied Energy, Elsevier, vol. 88(12), pages 4766-4778.
    8. Xun Yang & Yong Wang & Teng Xiong, 2017. "Numerical and Experimental Study on a Solar Water Heating System in Lhasa," Energies, MDPI, vol. 10(7), pages 1-13, July.
    9. Shukla, Ruchi & Sumathy, K. & Erickson, Phillip & Gong, Jiawei, 2013. "Recent advances in the solar water heating systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 173-190.
    10. Han, Y.M. & Wang, R.Z. & Dai, Y.J., 2009. "Thermal stratification within the water tank," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(5), pages 1014-1026, June.
    11. Pintaldi, Sergio & Perfumo, Cristian & Sethuvenkatraman, Subbu & White, Stephen & Rosengarten, Gary, 2015. "A review of thermal energy storage technologies and control approaches for solar cooling," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 975-995.

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