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    Mass Flow Control Strategy for Maximum Energy Extraction in Thermal Energy Storage Tanks

    Source: Journal of Solar Energy Engineering:;2024:;volume( 147 ):;issue: 006::page 61001-1
    Author:
    Montoya-Marquez, Orlando
    ,
    Acevedo-Parra, H. R.
    ,
    Valdivia, Leonardo J.
    DOI: 10.1115/1.4067196
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper introduces an experimental approach to enhance thermal energy storage (TES) tank performance by employing a novel control strategy and an automatic flow valve. The valve adjusts mass flow to minimize heat loss and maximize useful heat within a specified input–output temperature range. Experiments were conducted indoors, simulating input heat via an electric heating element, and adhering to ANSI/ASHRAE 93-2010 standards. In the proposed control strategy, the set point is self-regulated based on an input value which in this case is the heat introduced into the TES system. In this way, when there is more input heat available, the mass flow will increase to obtain more useful heat at the output and, on the contrary, when there is less heat available, the mass flow will be reduced to obtain greater exergy. A comparison between this strategy and conventional on–off control systems was conducted, evaluating their performance based on useful heat obtained over an 8-h period with varying input heat levels. Results demonstrate that the proposed flow control methodology consistently outperforms on–off control, achieving a maximum 13.56% increase in useful heat under optimal conditions. This underscores the effectiveness of the novel control strategy in maximizing thermal energy storage tank efficiency.
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      Mass Flow Control Strategy for Maximum Energy Extraction in Thermal Energy Storage Tanks

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4305997
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    contributor authorMontoya-Marquez, Orlando
    contributor authorAcevedo-Parra, H. R.
    contributor authorValdivia, Leonardo J.
    date accessioned2025-04-21T10:21:06Z
    date available2025-04-21T10:21:06Z
    date copyright11/28/2024 12:00:00 AM
    date issued2024
    identifier issn0199-6231
    identifier othersol_147_6_061001.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4305997
    description abstractThis paper introduces an experimental approach to enhance thermal energy storage (TES) tank performance by employing a novel control strategy and an automatic flow valve. The valve adjusts mass flow to minimize heat loss and maximize useful heat within a specified input–output temperature range. Experiments were conducted indoors, simulating input heat via an electric heating element, and adhering to ANSI/ASHRAE 93-2010 standards. In the proposed control strategy, the set point is self-regulated based on an input value which in this case is the heat introduced into the TES system. In this way, when there is more input heat available, the mass flow will increase to obtain more useful heat at the output and, on the contrary, when there is less heat available, the mass flow will be reduced to obtain greater exergy. A comparison between this strategy and conventional on–off control systems was conducted, evaluating their performance based on useful heat obtained over an 8-h period with varying input heat levels. Results demonstrate that the proposed flow control methodology consistently outperforms on–off control, achieving a maximum 13.56% increase in useful heat under optimal conditions. This underscores the effectiveness of the novel control strategy in maximizing thermal energy storage tank efficiency.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleMass Flow Control Strategy for Maximum Energy Extraction in Thermal Energy Storage Tanks
    typeJournal Paper
    journal volume147
    journal issue6
    journal titleJournal of Solar Energy Engineering
    identifier doi10.1115/1.4067196
    journal fristpage61001-1
    journal lastpage61001-9
    page9
    treeJournal of Solar Energy Engineering:;2024:;volume( 147 ):;issue: 006
    contenttypeFulltext
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