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General methodology for exergy balance in ProSimPlus® process simulator

Listed author(s):
  • Ghannadzadeh, Ali
  • Thery-Hetreux, Raphaële
  • Baudouin, Olivier
  • Baudet, Philippe
  • Floquet, Pascal
  • Joulia, Xavier
Registered author(s):

    This paper presents a general methodology for exergy balance in chemical and thermal processes integrated in ProSimPlus® as a well-adapted process simulator for energy efficiency analysis. In this work, as well as using the general expressions for heat and work streams, the whole exergy balance is presented within only one software in order to fully automate exergy analysis. In addition, after exergy balance, the essential elements such as source of irreversibility for exergy analysis are presented to help the user for modifications on either process or utility system. The applicability of the proposed methodology in ProSimPlus® is shown through a simple scheme of Natural Gas Liquids (NGL) recovery process and its steam utility system. The methodology does not only provide the user with necessary exergetic criteria to pinpoint the source of exergy losses, it also helps the user to find the way to reduce the exergy losses. These features of the proposed exergy calculator make it preferable for its implementation in ProSimPlus® to define the most realistic and profitable retrofit projects on the existing chemical and thermal plants.

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    File URL: http://www.sciencedirect.com/science/article/pii/S0360544212001120
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    Article provided by Elsevier in its journal Energy.

    Volume (Year): 44 (2012)
    Issue (Month): 1 ()
    Pages: 38-59

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    Handle: RePEc:eee:energy:v:44:y:2012:i:1:p:38-59
    DOI: 10.1016/j.energy.2012.02.017
    Contact details of provider: Web page: http://www.journals.elsevier.com/energy

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    1. Leites, I.L. & Sama, D.A. & Lior, N., 2003. "The theory and practice of energy saving in the chemical industry: some methods for reducing thermodynamic irreversibility in chemical technology processes," Energy, Elsevier, vol. 28(1), pages 55-97.
    2. Rivero, R. & Garfias, M., 2006. "Standard chemical exergy of elements updated," Energy, Elsevier, vol. 31(15), pages 3310-3326.
    3. Querol, E. & Gonzalez-Regueral, B. & Ramos, A. & Perez-Benedito, J.L., 2011. "Novel application for exergy and thermoeconomic analysis of processes simulated with Aspen Plus®," Energy, Elsevier, vol. 36(2), pages 964-974.
    4. Roque Díaz, P. & Benito, Y.R. & Parise, J.A.R., 2010. "Thermoeconomic assessment of a multi-engine, multi-heat-pump CCHP (combined cooling, heating and power generation) system – A case study," Energy, Elsevier, vol. 35(9), pages 3540-3550.
    5. Abdollahi-Demneh, Farzad & Moosavian, Mohammad Ali & Omidkhah, Mohammad Reza & Bahmanyar, Hossein, 2011. "Calculating exergy in flowsheeting simulators: A HYSYS implementation," Energy, Elsevier, vol. 36(8), pages 5320-5327.
    6. Rivero, Ricardo & Rendón, Consuelo & Gallegos, Salvador, 2004. "Exergy and exergoeconomic analysis of a crude oil combined distillation unit," Energy, Elsevier, vol. 29(12), pages 1909-1927.
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