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Investigation of ORC architectures for high-temperature WHR from naval ship service diesel generators (SSDGs).

Enquête sur les architectures de cycles organiques de Rankine pour la récupération de chaleur perdue à haute température des générateurs diesel des navires militaires.

Résumé

Naval vessels typically require several ship service diesel generators (SSDGs) for electricity generation with an average thermal efficiency of approximately 40-45%. Waste heat SSDGs represents a significant opportunity to drive bottoming Organic Rankine Cycles (ORCs) to increase their fuel efficiency. Waste heat streams include both high-temperature exhaust gases and low-temperature cooling loops. In this work, a comprehensive numerical analysis is carried out to compare different cycle architectures to maximize the ORC power output at both full- and part-load SSDG conditions. Both subcritical and transcritical cycle architectures with evaporators in series and in parallel have been investigated. Novel, high-speed, spinning scroll expanders have been considered as expansion devices. Parametric studies were conducted to assess the trade-off between ORC output and effectiveness of operation to determine an optimum payback period.

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Format PDF

Pages : 9

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Investigation of ORC architectures for high-temperature WHR from naval ship service diesel generators (SSDGs).
  • Identifiant de la fiche : 30027748
  • Langues : Anglais
  • Sujet : Technologie
  • Source : IIR Rankine Conference 2020.
  • Date d'édition : 31/07/2020
  • DOI : http://dx.doi.org/10.18462/iir.rankine.2020.1181

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