Browsing by Author "fb29792e-d605-4215-ac5b-0d1608584f03"
Now showing items 1-20 of 34
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Approaches for integrated hydrogen production based on nuclear and renewable energy sources: Energy and exergy assessments of nuclear and solar energy sources in the United Arab Emirates
Orhan, Mehmet Fatih; Kahraman, Huseyin; Babu, Binish Sam (Elsevier, 2017-01-26)The United Arab Emirates (UAE) has for a long time been using oil and gas for its electricity production. However, with increasing demand in energy, rises in oil and gas prices and their future possible depletion, the UAE ... -
Concentrated photovoltaic thermal (CPVT) solar collector systems: Part I - Fundamentals, design considerations and current technologies
Sharaf, Omar Z.; Orhan, Mehmet Fatih (2015-10)Concentrated photovoltaic thermal (CPVT) solar collectors have been gaining ever-increasing attention from the scientific community and industrial developers due to their promising potential to pave the way for the penetration ... -
Cooling potential for hot climates by utilizing thermal management of compressed air energy storage systems
Alami, Abdul H.; Orhan, Mehmet Fatih; Al Rashid, Rashid; Yasin, Ahmad; Radwan, Ali; Ayoub, Mohamad; Abdelkareem, Mohammad Ali; Alashkar, Adnan (Springer Nature, 2022)This work presents findings on utilizing the expansion stage of compressed air energy storage systems for air conditioning purposes. The proposed setup is an ancillary installation to an existing compressed air energy ... -
Coupling of copper-chloride hybrid thermochemical water splitting cycle with a desalination plant for hydrogen production from nuclear energy
Orhan, Mehmet Fatih; Dincer, Ibrahim; Naterer, Greg; Rosen, Marc A. (2010-02)Energy and environmental concerns have motivated research on clean energy resources. Nuclear energy has the potential to provide a significant share of energy supply without contributing to environmental emissions and ... -
Design and analysis of an alkaline fuel cell
Azzam, Mohammed H. A.; Qaq, Zabayyan; Orhan, Mehmet Fatih (Yildiz Technical University, 2023)This study provides a step-by-step, up-to-date fuel cell fundamentals, thermodynamic and electrochemical principles, and system evaluation factors via a case study of a 10-kW alkaline fuel cell designed to operate in space ... -
Design and Comparison Analysis of Various Flow Configurations in Bipolar Plates via Numerical Simulation
Azzam, Mohammed H. A.; Qaq, Zabayyan; Orhan, Mehmet Fatih (Canadian Center of Science and Education, 2021)Bipolar plates play a major role in the overall performance of fuel cells, hence their proper design and optimization are essential. In this regard, pressure drop across bipolar plates has a major impact on the efficiency. ... -
Design and Optimization of Fuel Cells: A Case Study on Polymer Electrolyte Membrane Fuel Cell Power Systems for Portable Applications
Orhan, Mehmet Fatih; Saka, Kenan; Yousuf, Mohammad Hani (Wiley, 2022)Fuel cells are energy conversion devices that directly convert chemical energy of fuels such as hydrogen to useful work with negligible environmental impact and high efficiency. This study deals with thermodynamic analysis ... -
Design and simulation of a UOIT copper-chlorine cycle for hydrogen production
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc (Wiley, 2013-08)A design and simulation study of the four-step copper–chlorine (Cu–Cl) cycle using Aspen Plus software (Aspen Technology Inc., Cambridge, MA)is reported. The simulation consists of four main sections: hydrolysis, ... -
Design and Utilization of a Direct Methanol Fuel Cell
Ahmed, Aser Alaa Fathi Elsayed; Al-Lababidi, Malik Mamoun; Hamada, Ahmed T.; Orhan, Mehmet Fatih (MDPI, 2022)This study introduces a step-by-step, summarized overview of direct methanol fuel cell (DMFC) fundamentals, thermodynamic–electrochemical principles, and system evaluation factors. In addition, a parametric investigation ... -
Design of systems for hydrogen production based on the Cu-Cl thermochemical water decomposition cycle: Configurations and performance
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc A. (2011-08)In this study, we analyze several Cu-Cl cycles by examining various design schemes for an overall system and its components, in order to identify potential performance improvements. The factors that determine the number ... -
Efficiency comparison of various design schemes for copper-chlorine (Cu-Cl) hydrogen production processes using Aspen Plus software
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc A. (2012-11)In this study, simulation models are developed to analyze, design and optimize the Cu–Cl cycles using the Aspen PlusTM chemical process simulation package. Energy, exergy and yield effectiveness of the process, based on ... -
Energy assessment of an integrated hydrogen production systemEnergy assessment of an integrated hydrogen production system
Shahin, Mohamed Shahin; Orhan, Mehmet Fatih; Saka, Kenan; Hamada, Ahmed T.; Uygul, Faruk (Elsevier, 2022)Hydrogen is believed to be the future energy carrier that will reduce environmental pollution and solve the current energy crisis, especially when produced from a renewable energy source. Solar energy is a renewable source ... -
Enhancement of the corrosion resistance of mild steel with femtosecond laser- nanostructuring and CrCoNi medium entropy alloy coating
Ahmad, Shahbaz; Ahmad, Waqas; Abu Baker, Aya; Egilmez, Mehmet; Abuzaid, Wael; Orhan, Mehmet Fatih; Ibrahim, Taleb; Khamis, Mustafa; Alnaser, Ali (Elsevier, 2022)In this work, the corrosion resistance of mild steel surface nanostructured with a femtosecond laser and coated with high corrosion resistant CrCoNi (CCN) medium entropy alloy through magnetron sputtering is studied. ... -
Evaluating velocity and temperature fields for Ranque Hilsch vortex tube using numerical simulation
Al Saghir, Ahmad Mohammad; Hamdan, Mohammad; Orhan, Mehmet Fatih (Elsevier, 2021)In this study, a three-dimensional numerical investigation is carried out to study the flow field inside a Ranque-Hilsch vortex tube (RHVT) model. Flow parameters such as velocity, temperature, and pressure are plotted at ... -
Evaluating velocity and temperature fields for Ranque Hilsch vortex tube using numerical simulation
Al Saghir, Ahmad Mohammad; Hamdan, Mohammad; Orhan, Mehmet Fatih (Elsevier, 2021)In this study, a three-dimensional numerical investigation is carried out to study the flow field inside a Ranque-Hilsch vortex tube (RHVT) model. Flow parameters such as velocity, temperature, and pressure are plotted at ... -
Exergy analysis of heat exchangers in the copper-chlorine thermochemical cycle to enhance thermal effectiveness and cycle efficiency
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc A. (2011-08)Most existing nuclear power plants in North America are typically water-cooled and operate at 250–5008C. For this temperature level, the copper–chlorine (Cu–Cl) cycle is one of the most promisingcycles that can be integrated ... -
Exergy analysis of heat exchangers in the copper–chlorine thermochemical cycle to enhance thermal effectiveness and cycle efficiency
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc (Oxford University Press, 2011)Most existing nuclear power plants in North America are typically water-cooled and operate at 250–500°C. For this temperature level, the copper–chlorine (Cu–Cl) cycle is one of the most promising cycles that can be integrated ... -
An exergy-cost-energy-mass analysis of a hybrid copper-chlorine thermochemical cycle for hydrogen production
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc A. (2010-05)An exergoeconomic assessment using exergy-cost-energy-mass (EXCEM) analysis is reported of a copper-chlorine (Cu-Cl) thermochemical water splitting cycle for hydrogen production. The quantitative relation is identified ... -
Fluid properties impact on energy separation in Ranque–Hilsch vortex tube
Al Saghir, Ahmad Mohammad; Hamdan, Mohammad; Orhan, Mehmet Fatih (Springer Nature, 2022)This paper examines the energy separation in vortex tubes which is a passive device that can split a pressurized room temperature gas stream to hot and cold streams. The paper employs numerical simulations to investigate ... -
Integrated hydrogen production options based on renewable and nuclear energy sources
Orhan, Mehmet Fatih; Dincer, Ibrahim; Rosen, Marc A. (2012-10)Due to varied global challenges, potential energy solutions are needed to reduce environmental impact and improve sustainability. Many of the renewable energy resources are of limited applicability due to their reliability, ...