Development of models for green hydrogen production of Turkey geothermal Resources: A case study demonstration of thermodynamics and thermoeconomics analyses

Abstract

The transition to sustainable and clean energy sources has become imperative in the face of global climate change concerns. Hydrogen is a versatile and environmentally friendly energy carrier among the potential solutions. Utilizing renewable resources for hydrogen production is a promising avenue, and Turkey's geothermal resources offer significant potential. This study focuses on developing models for assessing Turkey's geothermal resources' green hydrogen production potential, employing thermodynamics and thermoeconomics analyses. The thermodynamic analysis explores the thermophysical properties of geothermal fluids, investigating the feasibility of utilizing the available heat for hydrogen production through electrolysis. As a result of the performance analysis, the Afyon Geothermal Power Plant (AFJES) produces 4132 kW net power with 150 kg/s geo-fluid at 110℃. The unit costs of the electricity and hydrogen produced in the power plant are 0.01671 $/kWh and 1.684 $/kg, respectively. The study aims to determine the optimal conditions and configurations for efficient hydrogen production from Turkey's geothermal resources. The findings provide valuable insights for policymakers, investors, and energy stakeholders, aiding in the decision-making process for deploying sustainable and economically viable hydrogen production in Turkey's geothermal-rich regions. Furthermore, this research contributes to the broader objective of achieving a low-carbon energy future while tapping into the immense potential of geothermal resources.