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    Mathematical Modeling and Performance Analysis of Seawater Heat Exchanger in Closed-Loop Seawater-Source Heat Pump System

    Source: Journal of Energy Engineering:;2019:;Volume ( 145 ):;issue: 004
    Author:
    Zhenjing Wu
    ,
    Shijun You
    ,
    Huan Zhang
    ,
    Man Fan
    ,
    Wandong Zheng
    ,
    Yaran Wang
    ,
    Yang Zhang
    DOI: 10.1061/(ASCE)EY.1943-7897.0000608
    Publisher: American Society of Civil Engineers
    Abstract: The seawater source heat pump (SWHP) utilizes low-grade energy from seawater to satisfy heating/cooling requirements of coastal buildings. Compared with the open-loop SWHP system, the closed-loop system is more stable and reliable when used in cold regions because the seawater heat exchanger can mitigate icing and corrosion problems. This study established mathematical modeling for the seawater heat exchanger, which was validated by the experimental results, to estimate the heat transfer performance. The thermal performance of the seawater heat exchanger under different operating conditions was predicted, and the effects of several key parameters on thermal resistance were analyzed. The results revealed that the pipe wall thermal resistance of the original heat exchanger was the most important factor limiting the heat transfer. Hence, a cost analysis of the heat exchangers with different pipe materials was conducted, and the steel pipe with anticorrosive coating was proven to be optimal in reducing pipe wall thermal resistance and economy. The findings are useful in designing and optimizing the seawater heat exchanger and promoting the application of ocean thermal energy.
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      Mathematical Modeling and Performance Analysis of Seawater Heat Exchanger in Closed-Loop Seawater-Source Heat Pump System

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4260246
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    • Journal of Energy Engineering

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    contributor authorZhenjing Wu
    contributor authorShijun You
    contributor authorHuan Zhang
    contributor authorMan Fan
    contributor authorWandong Zheng
    contributor authorYaran Wang
    contributor authorYang Zhang
    date accessioned2019-09-18T10:41:05Z
    date available2019-09-18T10:41:05Z
    date issued2019
    identifier other%28ASCE%29EY.1943-7897.0000608.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4260246
    description abstractThe seawater source heat pump (SWHP) utilizes low-grade energy from seawater to satisfy heating/cooling requirements of coastal buildings. Compared with the open-loop SWHP system, the closed-loop system is more stable and reliable when used in cold regions because the seawater heat exchanger can mitigate icing and corrosion problems. This study established mathematical modeling for the seawater heat exchanger, which was validated by the experimental results, to estimate the heat transfer performance. The thermal performance of the seawater heat exchanger under different operating conditions was predicted, and the effects of several key parameters on thermal resistance were analyzed. The results revealed that the pipe wall thermal resistance of the original heat exchanger was the most important factor limiting the heat transfer. Hence, a cost analysis of the heat exchangers with different pipe materials was conducted, and the steel pipe with anticorrosive coating was proven to be optimal in reducing pipe wall thermal resistance and economy. The findings are useful in designing and optimizing the seawater heat exchanger and promoting the application of ocean thermal energy.
    publisherAmerican Society of Civil Engineers
    titleMathematical Modeling and Performance Analysis of Seawater Heat Exchanger in Closed-Loop Seawater-Source Heat Pump System
    typeJournal Paper
    journal volume145
    journal issue4
    journal titleJournal of Energy Engineering
    identifier doi10.1061/(ASCE)EY.1943-7897.0000608
    page04019012
    treeJournal of Energy Engineering:;2019:;Volume ( 145 ):;issue: 004
    contenttypeFulltext
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