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Heat Utilization Characteristics of Two Sensible Heat Storage Vegetable Oils for Domestic Applications

Author

Listed:
  • Oyirwoth P. Abedigamba

    (Department of Physics, Kyambogo University, Kyambogo P.O. Box 1, Uganda)

  • Sayuni F. Mndeme

    (Department of Physics, Kyambogo University, Kyambogo P.O. Box 1, Uganda)

  • Ashmore Mawire

    (Department of Physics and Electronics, Material Science, Innovation and Modelling (MaSIM) Research Focus Area, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa)

  • Musa Rukaaya

    (Department of Physics, Kyambogo University, Kyambogo P.O. Box 1, Uganda)

Abstract

The heat utilization characteristics of two different sensible heat storage vegetable oils for domestic applications are evaluated. Heat utilization is the heat delivered to the cooking fluid/load. The two sensible heat storage vegetable oils are sunflower oil, and Roki oil (a blend of palm oil and sunflower oil). The heat utilization characteristics of the two heat storage materials are experimentally determined in water heating experiments using 1.0, 1.5, 2.0, and 2.5 kg water loads. The stored heat in Roki oil and sunflower oil is used to heat up the water during cool down/heat utilization tests. The reason for the research is that new insights into the utilization of a locally available vegetable oil (Roki oil) in Uganda, as a sensible thermal energy storage material, is determined. Additionally, a new storage pot is designed, tested, and compared with Roki oil and sunflower oil as sensible thermal energy storage materials. The highlights of the work are that average heat utilization values are dependent on the water heating load. The average heat utilization efficiency increases with the increase in the water heating load; Roki oil shows higher heat utilization and higher average heat utilization efficiency values as compared to sunflower oil; the average heat utilization and average heat utilization efficiency values increase with the increase in the water load for both Sunflower oil and Roki oil. The results suggest that Roki oil is a potential heat storage material for domestic applications since it shows better heat utilization characteristics than sunflower oil during heat utilization.

Suggested Citation

  • Oyirwoth P. Abedigamba & Sayuni F. Mndeme & Ashmore Mawire & Musa Rukaaya, 2023. "Heat Utilization Characteristics of Two Sensible Heat Storage Vegetable Oils for Domestic Applications," Sustainability, MDPI, vol. 15(8), pages 1-11, April.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:8:p:6825-:d:1126624
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    References listed on IDEAS

    as
    1. Mawire, A. & McPherson, M. & van den Heetkamp, R.R.J., 2009. "Thermal performance of a small oil-in-glass tube thermal energy storage system during charging," Energy, Elsevier, vol. 34(7), pages 838-849.
    2. Denis Okello & Robinson Omony & Karidewa Nyeinga & Jimmy Chaciga, 2022. "Performance Analysis of Thermal Energy Storage System Integrated with a Cooking Unit," Energies, MDPI, vol. 15(23), pages 1-19, November.
    3. Mawire, A. & McPherson, M., 2008. "Experimental characterisation of a thermal energy storage system using temperature and power controlled charging," Renewable Energy, Elsevier, vol. 33(4), pages 682-693.
    4. Divya Zindani & Saikat Ranjan Maity & Sumit Bhowmik, 2022. "A novel decision-making tool for performance evaluation of vegetable oils used as heat transfer fluids in concentrated solar power plants," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 24(11), pages 13334-13377, November.
    5. Ashmore Mawire & Sibongiseni M. Simelane & Patrick O. Abedigamba, 2021. "Energetic and exergetic performance comparison of three solar cookers for developing countries," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(10), pages 14528-14555, October.
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