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Pump network optimization for a cooling water system

Author

Listed:
  • Sun, Jin
  • Feng, Xiao
  • Wang, Yufei
  • Deng, Chun
  • Chu, Khim Hoong

Abstract

Centrifugal pumps are widely used in cooling water systems to transport cooling water to its users. They are installed in the header line of the feed pipe, constituting a main pump network. The pressure head of the main pumps must be large enough to satisfy the pressure heads of all coolers. The pressure drop of parallel branch pipes must be balanced by reducing the opening of valves for some coolers, incurring an energy penalty on some pumps. To attain energy savings, this paper proposes an auxiliary pump network whereby auxiliary pumps are installed in parallel branch pipes. A superstructure-based mathematical model is developed to optimize the total cost of the main and auxiliary pump networks. The optimal number of auxiliary pumps and their installation locations are determined by solving the model with a simulated annealing algorithm. The effectiveness of the model is tested by a case study based on the cooling water network of a refinery.

Suggested Citation

  • Sun, Jin & Feng, Xiao & Wang, Yufei & Deng, Chun & Chu, Khim Hoong, 2014. "Pump network optimization for a cooling water system," Energy, Elsevier, vol. 67(C), pages 506-512.
    • Handle: RePEc:eee:energy:v:67:y:2014:i:c:p:506-512
    DOI: 10.1016/j.energy.2014.01.028
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    References listed on IDEAS

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    Cited by:

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    4. Hebert Lugo-Granados & Lázaro Canizalez-Dávalos & Martín Picón-Núñez, 2021. "Comprehensive analysis of the thermohydraulic performance of cooling networks subject to fouling and undergoing retrofit projects," Energy & Environment, , vol. 32(8), pages 1414-1436, December.
    5. Ma, Jiaze & Wang, Yufei & Feng, Xiao, 2017. "Energy recovery in cooling water system by hydro turbines," Energy, Elsevier, vol. 139(C), pages 329-340.
    6. Ma, Jiaze & Wang, Yufei & Feng, Xiao, 2018. "Optimization of multi-plants cooling water system," Energy, Elsevier, vol. 150(C), pages 797-815.
    7. Zheng, Chenglin & Chen, Xi & Zhu, Lingyu & Shi, Jiaqi, 2018. "Simultaneous design of pump network and cooling tower allocations for cooling water system synthesis," Energy, Elsevier, vol. 150(C), pages 653-669.

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