Effects of ORC Working Fluids on Combined Cycle Integrated with SOFC and ORC for Stationary Power Generation

Matthew, Osagie; Nieh, Sen

doi:10.4236/epe.2019.114010

Cited by 7 publications

(6 citation statements)

References 18 publications

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“…Furthermore, the high operating temperature of SOFC applications produces excess waste heat that can be recycled as a cogeneration system. These cogeneration capabilities not only increase their efficiency but are also consistent with the broader goal of reducing resource waste and reducing environmental impact [9,10].…”

Section: Introductionmentioning

confidence: 61%

Nanostructured Materials for Enhanced Performance of Solid Oxide Fuel Cells: A Comprehensive Review

Helal,

Ahrouch,

Rabehi

et al. 2024

Crystals

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Solid oxide fuel cells (SOFCs) have emerged as promising candidates for efficient and environmentally friendly energy conversion technologies. Their high energy conversion efficiency and fuel flexibility make them particularly attractive for various applications, ranging from stationary power generation to portable electronic devices. Recently, research has focused on utilizing nanostructured materials to enhance the performance of SOFCs. This comprehensive review summarizes the latest advancements in the design, fabrication, and characterization of nanostructured materials integrated in SOFC. The review begins by elucidating the fundamental principles underlying SOFC operation, emphasizing the critical role of electrode materials, electrolytes, and interfacial interactions in overall cell performance, and the importance of nanostructured materials in addressing key challenges. It provides an in-depth analysis of various types of nanostructures, highlighting their roles in improving the electrochemical performance, stability, and durability of SOFCs. Furthermore, this review delves into the fabrication techniques that enable precise control over nanostructure morphology, composition, and architecture. The influence of nanoscale effects on ionic and electronic transport within the electrolyte and electrodes is thoroughly explored, shedding light on the mechanisms behind enhanced performance. By providing a comprehensive overview of the current state of research on nanostructured materials for SOFCs, this review aims to guide researchers, engineers, and policymakers toward the development of high-performance, cost-effective, and sustainable energy conversion systems.

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Section: Introductionmentioning

confidence: 61%

Nanostructured Materials for Enhanced Performance of Solid Oxide Fuel Cells: A Comprehensive Review

Helal,

Ahrouch,

Rabehi

et al. 2024

Crystals

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“…The third-generation fuel cells are establishing for commercialization stage after the phosphoric acid fuel cells (PAFCs) and molten carbonate fuel cells (MCFCs) in huge scale application such as power generation plant which high energy conversion from fuel and accomplished co-generative energy production from the heat waste is solid oxide fuel cells (SOFCs). 20,21 The limitation of SOFC application occurred when to develop the stack structure for the portable power generation and transportation application. Normally, the redox reactions occurred when the operating temperature achieves 800°C and the oxide ion transfers to the anode side through a solid electrolyte to produce the electricity.…”

Section: Introductionmentioning

confidence: 99%

“…Normally, the redox reactions occurred when the operating temperature achieves 800°C and the oxide ion transfers to the anode side through a solid electrolyte to produce the electricity. 20,21 The high operating temperature of SOFCs leads to material issues for each SOFC components such as the electrolyte sintering problem, the electrode catalyst poisoning, the interfacial problem between each component due to the different coefficients of thermal expansion for the components of each cell. Besides, the high operating temperature of SOFC application makes this system an advantage to use the various consumptions of fuels types .…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19] Furthermore, the high operating temperature of SOFC applications will produce excess waste heat that can be recycled as a cogeneration system such as the combination of heat and power (CHP) system and the steam turbine power plant such as the Brayton cycles which reuses the excess waste heat to generates more energy. 20,21 The limitation of SOFC application occurred when to develop the stack structure for the portable power generation and transportation application. 19 The simple design of SOFC stack is required for these applications with the high output voltage.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, the small-scale design will be facing the durability and stability issues the material of each SOFC component. 20,21 The high operating temperature of SOFCs leads to material issues for each SOFC components such as the electrolyte sintering problem, the electrode catalyst poisoning, the interfacial problem between each component due to the different coefficients of thermal expansion for the components of each cell. 22 Therefore, the appropriate fabrication method is the important factor to develop each component and merge all components to prepare a single cell and the stacks especially for the microfabrication size for a simple design for transportation and portable application .…”

Section: Introductionmentioning

confidence: 99%

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A review of solid oxide fuel cell component fabrication methods toward lowering temperature

et al. 2019

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The solid oxide fuel cells (SOFCs) emerge as an alternative power generation system for high-scale stationary application and power plant station. The SOFC consumption leads to the high-efficiency energy production that forms variety of fuels up to 60% energy conversion; the operation system does not involve the burning process and minimizes the air pollution. Also, the aptitude to provide the cogenerative energy production from the heat waste during the operation process serve SOFC as an attractive green technology and environmentally friendly. However, the SOFC consumption remains limited for transportation and portable applications because the simple design of power source compartment is still the major hurdle in each SOFC component development and commercialization. Therefore, the appropriate fabrication method of each SOFC component is important to achieve the reliability of the SOFC application for the small-scale power generation design. In this paper, an overview of the design types and SOFC components and properties following electrode, electrolyte, interconnect and sealant are discussed and summarized. As the thirdgeneration fuel cells, which entice the commercialization stage, this paper concentrates more on the fabrication method of each SOFC components that were explored including the working principle, advantage, disadvantage and several previous works on each fabrication method, which are described to finding the appropriate fabrication method toward lowering the operating temperature and develop the simple design of SOFC power sources system for the transportation and portable application. The targeted market power production of SOFC system for transportation application is about 5 kW and 250 W for portable application.

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Evaluating the influence of working parameters on the efficiency of a solid oxide fuel cell by conducting sensitivity analysis using electrochemical and thermodynamic modeling

Mouissi,

Touaibi,

Köten

2024

Env Prog and Sustain Energy

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This research article presents an investigation conducted through a numerical model to analyze the influence of various operational parameters on the performance of solid oxide fuel cells (SOFCs). The parameters studied include operating temperature, current density, pressure, steam‐to‐carbon ratio, and fuel utilization. The electrochemical model employed the Butler‐Volmer equation, Fick's model, and Ohm's law to calculate concentration, activation, and ohmic losses. The primary focus was on evaluating the generated power and electrical efficiency as performance metrics. The study revealed that increasing operating temperature and pressure resulted in higher power generation and specific optimum points were identified for optimal SOFC operation. Notably, the highest power generated was 812 kW, achieved at an operating temperature of 950 K and a current density of 18100 A/m2. Additionally, decreasing the fuel utilization factor to 55% at 15250 A/m2 led to a power output of 706 kW. Similarly, at a current density of 17150 A/m2 and a pressure of 400 kPa, the fuel cell generated about 780 kW of power. Furthermore, the research demonstrated that reducing the steam‐to‐carbon ratio increased power generation, with an optimum power output of 704 kW achieved at a current density of 16000 A/m2 and a low steam‐to‐carbon ratio. Notably, this point also showcased the improved electrical efficiency of the solid oxide fuel cell. Overall, this study underscores the significance of specific operational factors that significantly impact SOFC performance. By comprehending these parameters, it becomes possible to enhance the utilization of solid oxide fuel cells across various applications.

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Effects of ORC Working Fluids on Combined Cycle Integrated with SOFC and ORC for Stationary Power Generation

Cited by 7 publications

References 18 publications

Nanostructured Materials for Enhanced Performance of Solid Oxide Fuel Cells: A Comprehensive Review

Nanostructured Materials for Enhanced Performance of Solid Oxide Fuel Cells: A Comprehensive Review

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

Evaluating the influence of working parameters on the efficiency of a solid oxide fuel cell by conducting sensitivity analysis using electrochemical and thermodynamic modeling

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