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Estimation of Evaporation of Water from a Liquid Desiccant Solar Collector and Regenerator by Using Conservation of Mass and Energy Principles

Author

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  • Gezahegn Habtamu Tafesse

    (Department of Mechanical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia)

  • Gulam Mohammed Sayeed Ahmed

    (Department of Mechanical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia
    Center of Excellence (COE) for Advanced Manufacturing Engineering, Program of Mechanical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia)

  • Irfan Anjum Badruddin

    (Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia)

  • Sarfaraz Kamangar

    (Mechanical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia)

  • Mohamed Hussien

    (Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia)

Abstract

Solar thermal energy-powered air conditioning technologies are receiving increased attention. Among the solar energy-driven cooling technologies, open type liquid desiccant air conditioning (AC) system is emerging as a promising technology, which has a solar driven desiccant solution regenerator. In this type of system, the evaporation of water and concentrating the desiccant or regenerator performance determines the cooling performance of the AC system, which necessitates its development and experimental performance testing under actual operating conditions. The setup is made of a black painted corrugated solar collector of area 0.8 m × 1.84 m covered with glass, and a liquid desiccant solution tank and distribution system over the absorber. Solar regeneration experiments on calcium chloride–water solution were carried out on the setup and a total of five sets of meteorological, collector and solution property data were collected through concentrating the desiccant from 32.9 initially to 51.3% in five days. The evaporation of water from the regenerator was analyzed using energy and desiccant mass conservation. For a typical day, the mass of water evaporated was estimated to be 3.10 and 3.16 kg over a day, as estimated by conservation of mass and energy principles from a 34.8 kg of calcium chloride solution with initial desiccant concentration of 43.6% stored in the tank.

Suggested Citation

  • Gezahegn Habtamu Tafesse & Gulam Mohammed Sayeed Ahmed & Irfan Anjum Badruddin & Sarfaraz Kamangar & Mohamed Hussien, 2023. "Estimation of Evaporation of Water from a Liquid Desiccant Solar Collector and Regenerator by Using Conservation of Mass and Energy Principles," Sustainability, MDPI, vol. 15(8), pages 1-18, April.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:8:p:6520-:d:1121525
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    References listed on IDEAS

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    Cited by:

    1. Farah G. Fahad & Shurooq T. Al-Humairi & Amged T. Al-Ezzi & Hasan Sh. Majdi & Abbas J. Sultan & Thaqal M. Alhuzaymi & Thaar M. Aljuwaya, 2023. "Advancements in Liquid Desiccant Technologies: A Comprehensive Review of Materials, Systems, and Applications," Sustainability, MDPI, vol. 15(18), pages 1-23, September.

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