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Investigation of an ejector powered double-effect absorption/recompression refrigeration cycle

  • Dades identificatives

    Identificador: imarina:5654573
    Autors:
    Sioud DBourouis MBellagi A
    Resum:
    © 2018 Elsevier Ltd and IIR The objective of the present work is to investigate the feasibility and the eventual improvement in performance of an ejector powered water/lithium bromide double-effect absorption/recompression refrigeration cycle driven by high temperature heat sources. The results show that the cycle performance parameters are significantly affected by the presence of the ejector and its characteristics. Further, the COP responses to variation of working conditions are different from those observed for the conventional double-effect absorption refrigeration cycles. The maximum COP values of the ejector cycle occur at HP-generator temperatures lower by 20 °C to 25 °C than those of the conventional double-effect absorption cycle. The enhancement factor of the COP varies between 1.34 and 1.70 at a driving steam temperature ranging from 240 °C to 340 °C. As regards the ejector design, the ratio of HP-generator pressure and driving steam pressure should be kept as low as possible. The geometry of the design should allow for the maximum entrainment ratio feasible.
  • Altres:

    Autor segons l'article: Sioud D; Bourouis M; Bellagi A
    Departament: Enginyeria Mecànica
    Autor/s de la URV: Bourouis Chebata, Mahmoud
    Paraules clau: Water/lithium bromide Simulation High temperature heat sources Ejector Double-effect absorption/recompression cycle Absorption cooling cycle
    Resum: © 2018 Elsevier Ltd and IIR The objective of the present work is to investigate the feasibility and the eventual improvement in performance of an ejector powered water/lithium bromide double-effect absorption/recompression refrigeration cycle driven by high temperature heat sources. The results show that the cycle performance parameters are significantly affected by the presence of the ejector and its characteristics. Further, the COP responses to variation of working conditions are different from those observed for the conventional double-effect absorption refrigeration cycles. The maximum COP values of the ejector cycle occur at HP-generator temperatures lower by 20 °C to 25 °C than those of the conventional double-effect absorption cycle. The enhancement factor of the COP varies between 1.34 and 1.70 at a driving steam temperature ranging from 240 °C to 340 °C. As regards the ejector design, the ratio of HP-generator pressure and driving steam pressure should be kept as low as possible. The geometry of the design should allow for the maximum entrainment ratio feasible.
    Àrees temàtiques: Thermodynamics Química Mechanical engineering Materiais Interdisciplinar Engineering, mechanical Engenharias iv Engenharias iii Engenharias ii Ciência de alimentos Building and construction Astronomia / física
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 01407007
    Adreça de correu electrònic de l'autor: mahmoud.bourouis@urv.cat
    Identificador de l'autor: 0000-0003-2476-5967
    Data d'alta del registre: 2023-02-18
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0140700718305024
    Referència a l'article segons font original: International Journal Of Refrigeration-Revue Internationale Du Froid. 99 453-468
    Referència de l'ítem segons les normes APA: Sioud D; Bourouis M; Bellagi A (2019). Investigation of an ejector powered double-effect absorption/recompression refrigeration cycle. International Journal Of Refrigeration-Revue Internationale Du Froid, 99(), 453-468. DOI: 10.1016/j.ijrefrig.2018.11.042
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.1016/j.ijrefrig.2018.11.042
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2019
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Building and Construction,Engineering, Mechanical,Mechanical Engineering,Thermodynamics
    Water/lithium bromide
    Simulation
    High temperature heat sources
    Ejector
    Double-effect absorption/recompression cycle
    Absorption cooling cycle
    Thermodynamics
    Química
    Mechanical engineering
    Materiais
    Interdisciplinar
    Engineering, mechanical
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Ciência de alimentos
    Building and construction
    Astronomia / física
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