Articles producció científica> Enginyeria Mecànica

Performance Analysis of Low-Capacity Water–LiBr Absorption–Cooling Systems Using Geothermal Heat-Sinks in Hot Climates

  • Identification data

    Identifier: imarina:9290050
  • Authors:

    Ketfi, O
    Abdi, H
    Lounici, B
    Bourouis, M
  • Others:

    Author, as appears in the article.: Ketfi, O; Abdi, H; Lounici, B; Bourouis, M
    Department: Enginyeria Mecànica
    URV's Author/s: Bourouis Chebata, Mahmoud
    Keywords: Water–libr absorption chiller Underground heat-exchanger Geothermal heat-sink
    Abstract: This paper addresses the use of a geothermal heat-sink to remove the heat released in domestic-sized single and double-effect water–LiBr absorption chillers operating in hot climates. This study is the continuation of a previous work, which demonstrated the operational constraints of these absorption chillers working in hot Algerian climate-zones. After localizing the non-operation zones for both systems, the thermo-physical properties of the soil at several depths are investigated for the implementation of the underground heat-exchanger. This heat-exchanger is connected to the condenser and the absorber of both systems, to supply cooling water at inlet temperatures of 33 °C in hot climate conditions, with ambient temperatures varying from 38 °C to 42 °C. The results show a steady operation for both absorption chillers in climate conditions which had not previously allowed the two systems to operate in water or air-cooled modes. A maximum coefficient of performance of 0.76 and 1.25 is obtained for single- and double-effect absorption cycles, respectively, with chilled water at 7 °C. The underground-tube length required is between 4.5 and 18 m, depending on the absorption-cycle configuration and the temperature of the chilled water.
    Thematic Areas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Interdisciplinar General computer science Fuel technology Engineering (miscellaneous) Engenharias iv Engenharias iii Engenharias ii Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrical and electronic engineering Economia Control and optimization Ciências ambientais Ciências agrárias i Ciência da computação Building and construction Biotecnología Biodiversidade Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: mahmoud.bourouis@urv.cat
    Author identifier: 0000-0003-2476-5967
    Record's date: 2023-12-17
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.mdpi.com/1996-1073/16/2/809
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Energies. 16 (2): 809-
    APA: Ketfi, O; Abdi, H; Lounici, B; Bourouis, M (2023). Performance Analysis of Low-Capacity Water–LiBr Absorption–Cooling Systems Using Geothermal Heat-Sinks in Hot Climates. Energies, 16(2), 809-. DOI: 10.3390/en16020809
    Article's DOI: 10.3390/en16020809
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Publication Type: Journal Publications
  • Keywords:

    Control and Optimization,Electrical and Electronic Engineering,Energy & Fuels,Energy (Miscellaneous),Energy Engineering and Power Technology,Engineering (Miscellaneous),Fuel Technology,Renewable Energy, Sustainability and the Environment
    Water–libr absorption chiller
    Underground heat-exchanger
    Geothermal heat-sink
    Zootecnia / recursos pesqueiros
    Renewable energy, sustainability and the environment
    Interdisciplinar
    General computer science
    Fuel technology
    Engineering (miscellaneous)
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Energy engineering and power technology
    Energy (miscellaneous)
    Energy & fuels
    Electrical and electronic engineering
    Economia
    Control and optimization
    Ciências ambientais
    Ciências agrárias i
    Ciência da computação
    Building and construction
    Biotecnología
    Biodiversidade
    Astronomia / física
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