Optimization of a dual cycle cogeneration system based on a new exergetic performance criterion

ÜST Y., ŞAHİN B., Kodal A.

Applied Energy, cilt.84, sa.11, ss.1079-1091, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 84 Sayı: 11
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.apenergy.2007.04.004
  • Dergi Adı: Applied Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1079-1091
  • Anahtar Kelimeler: ecological optimization, dual cycle, cogeneration, performance analysis, exergetic performance
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

An ecological performance analysis for an irreversible dual-cycle cogeneration system has been performed. The objective function is called as the exergetic-performance coefficient (EPC) and defined as the ratio of total exergy output to the loss rate of availability. The general and optimal performances of the irreversible dual-cycle cogeneration system, having a finite-rate of heat transfer, heat leak and internal irreversibilities based on the EPC objective function have been investigated. Comparisons with respect to the optimal total-exergy output are also provided in order to establish the utility of the new exergetic-performance coefficient. The analyzed results of the dual-cycle cogeneration system considered, working at maximum EPC conditions, have a significant advantage in terms of entropy-generation rate and can be used for the selection of optimal design parameters. © 2007 Elsevier Ltd. All rights reserved.