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Downsizing strategy for an air-cooled indirect-fired single-effect ammonia-water absorption chiller in part-load operation in hot climates

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dc.contributor.authorPalacios Lorenzo, María Esther
dc.contributor.authorMarcos del Cano, José Daniel
dc.date.accessioned2024-05-20T11:41:03Z
dc.date.available2024-05-20T11:41:03Z
dc.date.issued2024
dc.description.abstractA modular mathematical model has been created to simulate an ammonia-water absorption refrigeration system indirectly fired and air-cooled. The model includes governing equations based on mass, species, and energy balances, implemented for the main components of the system. It accounts for both thermal and mass resistances in the transfer processes that occur in the system. The study evaluates the performance of the ROBUR® absorption refrigeration system, model ACF60-00 LB, operating under part-load conditions, driven by hot water temperatures ranging between 160 and 210 °C, while the ambient temperature remains up to 40 °C. This refrigeration system is characterised by including an extra valve that allows active control of the pressure levels of the system. The analysis focusses on the effect of its active control on the size of the system. The results show that increasing the pressure loss in this valve reduces the size of the air-cooled absorber to 37.3 % of its nominal size at an ambient temperature of 40 °C, while the reduction in refrigerant mass flow is 18.5 %, while the condenser size decreases 3.1 times. Evaporator, air-cooled absorber and condenser effectiveness are minimally affected. Additionally, contribution of condenser and evaporator to exergy destruction is balanced.en
dc.description.versionversión final
dc.identifier.doihttp://doi.org/10.1016/j.csite.2023.103911
dc.identifier.issn2214-157X
dc.identifier.urihttps://hdl.handle.net/20.500.14468/12414
dc.journal.titleCase Studies in Thermal Engineering
dc.journal.volume53
dc.language.isoen
dc.publisherElsevier
dc.relation.centerE.T.S. de Ingenieros Industriales
dc.relation.departmentIngeniería Energética
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subject.keywordsDownsizing
dc.subject.keywordsThermodynamics
dc.subject.keywordsAmmonia-water
dc.subject.keywordshot climate
dc.subject.keywordsAbsorption
dc.subject.keywordsGax
dc.titleDownsizing strategy for an air-cooled indirect-fired single-effect ammonia-water absorption chiller in part-load operation in hot climateses
dc.typejournal articleen
dc.typeartículoes
dspace.entity.typePublication
relation.isAuthorOfPublication672b588d-ea94-449f-abc8-6220ecee2096
relation.isAuthorOfPublication.latestForDiscovery672b588d-ea94-449f-abc8-6220ecee2096
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