A study on performance of solid oxide fuel cell-organic Rankine cycle combined system

AKKAYA A. V., ŞAHİN B.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, cilt.33, sa.6, ss.553-564, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 33 Sayı: 6
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1002/er.1490
  • Dergi Adı: INTERNATIONAL JOURNAL OF ENERGY RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.553-564
  • Anahtar Kelimeler: solid oxide fuel cell, organic Rankine cycle, combined system, performance analysis, POWER, ORC
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

This study presents an energetic performance analysis for a combined power generation system consisting of a solid oxide fuel cell (SOFC) and an organic Rankine cycle (ORC). In order to simulate the SOFC-ORC combined system under steady-state conditions, a mathematical model is developed. The developed model is used to determine the potential effects caused by the changes of the design parameters on the energetic performance of the combined system. As design parameters, turbine inlet pressure, condenser temperature, fuel utilization, current density, compressor pressure ratio, and cell operating temperature are taken into account. In this regard, the electrical power and First Law efficiency are estimated by parametrical analysis and discussed comprehensively. Results of these analyses show that the efficiency is increased about 14-25% by recovering SOFC waste heat through ORC based on investigated design parameter conditions. Copyright (C) 2008 John Wiley & Sons, Ltd.