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Thermodynamic assessment of geothermal energy use in hydrogen production

2009; Elsevier BV; Volume: 34; Issue: 7 Linguagem: Inglês

10.1016/j.ijhydene.2009.01.087

1879-3487

M. Tolga Balta, İbrahim Dinçer, Arif Hepbaşlı,

Advancements in Solid Oxide Fuel Cells

In this study, geothermal-based hydrogen production methods, and their technologies and application possibilities are discussed in detail. A high-temperature electrolysis (HTE) process coupled with and powered by a geothermal source is considered for a case study, and its thermodynamic analysis through energy and exergy is conducted for performance evaluation purposes. In this regard, overall energy and exergy efficiencies of the geothermal-based hydrogen production process for this HTE are found to be 87% and 86%, respectively.