Guest Editors
Assistant Professor. Dr. Nugroho Agung Pambudi
Department of Mechanical Engineering Education, Sebelas Maret University, Indonesia
Email: agung.pambudi@staff.uns.ac.id
Professor. Lip Huat Saw
Lee Kong Chian Faculty of Engineering and Science, University of Tunku Abdul Rahman, Kajang, 43000, Malaysia
Email: sawlh@utar.edu.my
Associate Professor. Dr Muhammad Imran
Lecturer in Mechanical and Design Engineering, Aston University, Birmingham, B4 7ET, UK
Email: m.imran12@aston.ac.uk
Summary
Geothermal energy is considered one of the most reliable and relatively least expensive sources of renewable energy. The energy and exergy analysis of the power plant, energy process, and single/double and dry steam plant including ORC expansion is investigated to optimize the use of this energy. Exergy analysis has become one of the most important tools for the design and analysis of thermal systems that apply the conservation of mass and energy together with the second law of thermodynamics for the analysis, design, and improvement of energy systems. Therefore, other things that can be explored related to this topic are:
· Energy and exergy analysis of geothermal power plant
· Power plants optimization such as in the field of thermodynamics, turbines, separators, and other components,
· New innovation design in power plants or its components,
· Methods to overcome silica scaling,
· Heat and Energy recovery,
· Power stability,
· Heat insulation and
· ORC application in geothermal power plant systems.
Keywords
Geothermal power plant, Efficiency, Separator and turbine optimization, Thermodynamics analysis, Second Law efficiencies, Energy Trading, Energy Business, Social Acceptance
Published Papers
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Open Access
ARTICLE
Optimization of a Single Flash Geothermal Power Plant Powered by a Trans-Critical Carbon Dioxide Cycle Using Genetic Algorithm and Nelder-Mead Simplex Method
Yashar Aryanfar, Jorge Luis García Alcaraz
Energy Engineering, Vol.120, No.2, pp. 263-275, 2023, DOI:10.32604/ee.2023.022587
（This article belongs to this Special Issue:
Geothermal Power Generation: Energy, Exergy and Optimization)
Abstract The usage of renewable energies, including geothermal energy, is expanding rapidly worldwide. The low efficiency of geothermal cycles has consistently highlighted the importance of recovering heat loss for these cycles. This paper proposes a combined power generation cycle (single flash geothermal cycle with trans-critical CO
2 cycle) and simulates in the EES (Engineering Equation Solver) software. The results show that the design parameters of the proposed system are significantly improved compared to the BASIC single flash cycle. Then, the proposed approach is optimized using the genetic algorithm and the Nelder-Mead Simplex method. Separator pressure, steam turbine output pressure, and CO
2 turbine…
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