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    Data Center Waste Heat Reuse: An Investment Analysis

    Source: ASME Journal of Engineering for Sustainable Buildings and Cities:;2025:;volume( 006 ):;issue: 002::page 21002-1
    Author:
    Khalid, Rehan
    ,
    Wemhoff, Aaron P.
    ,
    Khuc, Mai
    ,
    Nayar, Ajay J.
    ,
    Schon, Steven
    DOI: 10.1115/1.4067444
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A thermo-economic analysis (TEA) of a novel cooling and enhanced heat recovery (CEHR) system for data centers (DCs) is presented. Three financial metrics (net present value—NPV, return on investment—ROI, and payback period—PP) are calculated for hot and chilled water generation. Hot water generation uses vapor recompression to produce water at approximately 75 °C. Chilled water generation builds upon the hot water generation scenario by feeding the hot water stream into an absorption chiller. Without considering the additional costs for connecting the infrastructure with the customer, a payback period shorter than 2 years is found for a hot water generation system for a base case assuming a 10-MW data center (DC) in Philadelphia, PA, when carbon (reduction) credits are included. Chilled water generation is found to be economically unfavorable in this location. Sensitivities of economics to data center power, hot water versus chilled water generation, geographic region, and carbon credits are evaluated for five additional global locations in Europe and Asia. The economies of scale enable favorable payback periods for integrating hot water generation for facilities beyond 7 MW. Hot water generation is especially favorable in Singapore when replacing natural gas-based heating or hot water heat pumps.
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      Data Center Waste Heat Reuse: An Investment Analysis

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4306392
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    contributor authorKhalid, Rehan
    contributor authorWemhoff, Aaron P.
    contributor authorKhuc, Mai
    contributor authorNayar, Ajay J.
    contributor authorSchon, Steven
    date accessioned2025-04-21T10:32:04Z
    date available2025-04-21T10:32:04Z
    date copyright1/6/2025 12:00:00 AM
    date issued2025
    identifier issn2642-6641
    identifier otherjesbc_6_2_021002.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4306392
    description abstractA thermo-economic analysis (TEA) of a novel cooling and enhanced heat recovery (CEHR) system for data centers (DCs) is presented. Three financial metrics (net present value—NPV, return on investment—ROI, and payback period—PP) are calculated for hot and chilled water generation. Hot water generation uses vapor recompression to produce water at approximately 75 °C. Chilled water generation builds upon the hot water generation scenario by feeding the hot water stream into an absorption chiller. Without considering the additional costs for connecting the infrastructure with the customer, a payback period shorter than 2 years is found for a hot water generation system for a base case assuming a 10-MW data center (DC) in Philadelphia, PA, when carbon (reduction) credits are included. Chilled water generation is found to be economically unfavorable in this location. Sensitivities of economics to data center power, hot water versus chilled water generation, geographic region, and carbon credits are evaluated for five additional global locations in Europe and Asia. The economies of scale enable favorable payback periods for integrating hot water generation for facilities beyond 7 MW. Hot water generation is especially favorable in Singapore when replacing natural gas-based heating or hot water heat pumps.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleData Center Waste Heat Reuse: An Investment Analysis
    typeJournal Paper
    journal volume6
    journal issue2
    journal titleASME Journal of Engineering for Sustainable Buildings and Cities
    identifier doi10.1115/1.4067444
    journal fristpage21002-1
    journal lastpage21002-11
    page11
    treeASME Journal of Engineering for Sustainable Buildings and Cities:;2025:;volume( 006 ):;issue: 002
    contenttypeFulltext
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