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A solar water heater based on phase-changing material

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  • Bhargava, Ashok Kumar

Abstract

A water heater utilising a material which changes phase for storage of solar energy is discussed. The transient analysis is carried out by replacing the solid-liquid block of the phase-changing material by a fictitious solid and assuming that the solid-liquid boundary remains stationary throughout the day. The efficiency of the system and the outlet water temperature during the evening hours increase with the increase in the thermal conductivity of the solid-liquid phases of the materials. Hot water can be obtained throughout the day if water pipes are placed near the surface of the storage material. The outlet water temperature curve becomes flat if the pipes are placed near the bottom of the storage material.

Suggested Citation

  • Bhargava, Ashok Kumar, 1983. "A solar water heater based on phase-changing material," Applied Energy, Elsevier, vol. 14(3), pages 197-209.
    • Handle: RePEc:eee:appene:v:14:y:1983:i:3:p:197-209
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    Citations

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    Cited by:

    1. Bouadila, Salwa & Kooli, Sami & Lazaar, Mariem & Skouri, Safa & Farhat, Abdelhamid, 2013. "Performance of a new solar air heater with packed-bed latent storage energy for nocturnal use," Applied Energy, Elsevier, vol. 110(C), pages 267-275.
    2. Srinivas, Morapakala, 2011. "Domestic solar hot water systems: Developments, evaluations and essentials for “viability” with a special reference to India," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 3850-3861.
    3. Agyenim, Francis & Hewitt, Neil & Eames, Philip & Smyth, Mervyn, 2010. "A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(2), pages 615-628, February.
    4. Rathod, Manish K. & Banerjee, Jyotirmay, 2013. "Thermal stability of phase change materials used in latent heat energy storage systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 18(C), pages 246-258.
    5. Xue, H. Sheng, 2016. "Experimental investigation of a domestic solar water heater with solar collector coupled phase-change energy storage," Renewable Energy, Elsevier, vol. 86(C), pages 257-261.
    6. Shukla, Anant & Buddhi, D. & Sawhney, R.L., 2009. "Solar water heaters with phase change material thermal energy storage medium: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(8), pages 2119-2125, October.
    7. Lari, Muhammad O. & Sahin, Ahmet Z., 2018. "Effect of retrofitting a silver/water nanofluid-based photovoltaic/thermal (PV/T) system with a PCM-thermal battery for residential applications," Renewable Energy, Elsevier, vol. 122(C), pages 98-107.
    8. Seddegh, Saeid & Wang, Xiaolin & Henderson, Alan D. & Xing, Ziwen, 2015. "Solar domestic hot water systems using latent heat energy storage medium: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 49(C), pages 517-533.
    9. M. Mofijur & Teuku Meurah Indra Mahlia & Arridina Susan Silitonga & Hwai Chyuan Ong & Mahyar Silakhori & Muhammad Heikal Hasan & Nandy Putra & S.M. Ashrafur Rahman, 2019. "Phase Change Materials (PCM) for Solar Energy Usages and Storage: An Overview," Energies, MDPI, vol. 12(16), pages 1-20, August.

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