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    Development of a Novel Combined Absorption Cycle for Power Generation and Refrigeration

    Source: Journal of Energy Resources Technology:;2007:;volume( 129 ):;issue: 003::page 254
    Author:
    Na Zhang
    ,
    Noam Lior
    DOI: 10.1115/1.2751506
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Cogeneration can improve energy utilization efficiency significantly. In this paper, a new ammonia-water system is proposed for the cogeneration of refrigeration and power. The plant operates in a parallel combined cycle mode with an ammonia-water Rankine cycle and an ammonia refrigeration cycle, interconnected by absorption, separation, and heat transfer processes. The performance was evaluated by both energy and exergy efficiencies, with the latter providing good guidance for system improvement. The influences of the key parameters, which include the basic working solution concentration, the cooling water temperature, and the Rankine cycle turbine inlet parameters on the cycle performance, have been investigated. It is found that the cycle has a good thermal performance, with energy and exergy efficiencies of 27.7% and 55.7%, respectively, for the base-case studied (having a maximum cycle temperature of 450°C). Comparison with the conventional separate generation of power and refrigeration having the same outputs shows that the energy consumption of the cogeneration cycle is markedly lower. A brief review of desirable properties of fluid pairs for such cogeneration cycles was made, and detailed studies for finding new fluid pairs and the impact of their properties on cogeneration system performance are absent and are very recommended.
    keyword(s): Temperature , Exergy , Refrigeration , Fluids , Cycles , Heat , Cooling , Absorption , Turbines , Pressure AND Combined heat and power ,
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      Development of a Novel Combined Absorption Cycle for Power Generation and Refrigeration

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    http://yetl.yabesh.ir/yetl1/handle/yetl/135620
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    contributor authorNa Zhang
    contributor authorNoam Lior
    date accessioned2017-05-09T00:23:31Z
    date available2017-05-09T00:23:31Z
    date copyrightSeptember, 2007
    date issued2007
    identifier issn0195-0738
    identifier otherJERTD2-26547#254_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/135620
    description abstractCogeneration can improve energy utilization efficiency significantly. In this paper, a new ammonia-water system is proposed for the cogeneration of refrigeration and power. The plant operates in a parallel combined cycle mode with an ammonia-water Rankine cycle and an ammonia refrigeration cycle, interconnected by absorption, separation, and heat transfer processes. The performance was evaluated by both energy and exergy efficiencies, with the latter providing good guidance for system improvement. The influences of the key parameters, which include the basic working solution concentration, the cooling water temperature, and the Rankine cycle turbine inlet parameters on the cycle performance, have been investigated. It is found that the cycle has a good thermal performance, with energy and exergy efficiencies of 27.7% and 55.7%, respectively, for the base-case studied (having a maximum cycle temperature of 450°C). Comparison with the conventional separate generation of power and refrigeration having the same outputs shows that the energy consumption of the cogeneration cycle is markedly lower. A brief review of desirable properties of fluid pairs for such cogeneration cycles was made, and detailed studies for finding new fluid pairs and the impact of their properties on cogeneration system performance are absent and are very recommended.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDevelopment of a Novel Combined Absorption Cycle for Power Generation and Refrigeration
    typeJournal Paper
    journal volume129
    journal issue3
    journal titleJournal of Energy Resources Technology
    identifier doi10.1115/1.2751506
    journal fristpage254
    journal lastpage265
    identifier eissn1528-8994
    keywordsTemperature
    keywordsExergy
    keywordsRefrigeration
    keywordsFluids
    keywordsCycles
    keywordsHeat
    keywordsCooling
    keywordsAbsorption
    keywordsTurbines
    keywordsPressure AND Combined heat and power
    treeJournal of Energy Resources Technology:;2007:;volume( 129 ):;issue: 003
    contenttypeFulltext
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