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

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

Numéro : 1181

Auteurs : REN J., DAMLE N. G., CASKEY S., SHAFFER B. R., ZIVIANI D., GROLL E. A.

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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