Energetic and exergetic performance evaluations of a geothermal power plant based integrated system for hydrogen production


YÜKSEL Y. E., ÖZTÜRK M., Dincer I.

International Journal of Hydrogen Energy, cilt.43, sa.1, ss.78-90, 2018 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.ijhydene.2017.11.002
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.78-90
  • Anahtar Kelimeler: Efficiency, Energy, Exergy, Geothermal energy, Hydrogen production
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Hayır

Özet

In this paper, we propose an integrated system aiming for hydrogen production with by-products using geothermal power as a renewable energy source. In analyzing the system, an extensive thermodynamic model of the proposed system is developed and presented accordingly. In addition, the energetic and exergetic efficiencies and exergy destruction rates for the whole system and its parts are defined. Due to the significance of some parameters, the impacts of varying working conditions are also investigated. The results of the energetic and exergetic analyses of the integrated system show that the energy and exergy efficiencies are 39.46% and 44.27%, respectively. Furthermore, the system performance increases with the increasing geothermal source temperature and reference temperature while it decreases with the increasing pinch point temperature and turbine inlet pressure.