Energy and exergy analyses of a new four-step copper-chlorine cycle for geothermal-based hydrogen production

Tolga Balta M. T., Dincer I., Hepbasli A.

Energy, cilt.35, sa.8, ss.3263-3272, 2010 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 8
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.energy.2010.04.011
  • Dergi Adı: Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3263-3272
  • Anahtar Kelimeler: Copper-chlorine cycle, Energy, Exergy, Geothermal, Hydrogen, Thermochemical cycle
  • Uşak Üniversitesi Adresli: Hayır

Özet

In this paper, energy and exergy analyses of the geothermal-based hydrogen production via thermochemical water decomposition using a new, four-step copper-chlorine (Cu-Cl) cycle are conducted, and the respective cycle energy and exergy efficiencies are examined. Also, a parametric study is performed to investigate how each step of the cycle and its overall cycle performance are affected by reference environment temperatures, reaction temperatures, as well as energy efficiency of the geothermal power plant itself. As a result, overall energy and exergy efficiencies of the cycle are found to be 21.67% and 19.35%, respectively, for a reference case. © 2010 Elsevier Ltd.