Design and eco-technoeconomic analyses of SOFC/GT hybrid systems accounting for long-term degradation effects

Lai, Haoxiang; Harun, Nor Farida; Tucker, David; Adams, Thomas A.

doi:10.1016/j.ijhydene.2020.11.032

Cited by 36 publications

(8 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This work does not address the question of whether a standalone SOFC operating in mode 4 (constant power) is more economical than an SOFC operating in mode 1 combined with other system elements, such as a GT or combustion engine, such that the system as a whole produces constant or near-constant power. However, our prior work did address this issue specifically and found that SOFC/GT hybrids with SOFCs operating in mode 3 were significantly better economically than standalone SOFC systems operating in mode 4. However, that work used a less robust degradation model that does not capture most of the phenomena considered in the present study, it did not use optimization to determine optimal operating trajectories for any of its cases, and it used a coal-based syngas fuel.…”

Section: Results and Discussionmentioning

confidence: 99%

Economically Optimal Sizing and Operation Strategy for Solid Oxide Fuel Cells to Effectively Manage Long-Term Degradation

Naeini

Cotton

Adams

2021

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

In this paper, an economic analysis is conducted on standalone conventional solid oxide fuel cells (SOFCs) to determine their optimal economic operating conditions and to contribute to the commercialization of this technology. To this end, a mathematical model that accounts for dominant degradation phenomena is used to predict the long-term performance of SOFCs. The results of this analysis revealed that although SOFCs carry high capital costs, they are able to generate electricity at a cost similar to that of traditional power generators under optimal operational conditions. Moreover, it is possible to lower the degradation rate of the cells and run SOFCs under these conditions for several years. Sensitivity analysis showed that capital and fuel costs have the highest impacts on the levelized cost of electricity (LCOE) of SOFCs, while CO2 tax has the smallest. The findings of this analysis illustrate that performance and operational economics of an SOFC are dependent on its mode of operation: SOFCs operating in the constant-power-generation mode had the highest LCOE (ranging from 0.131 to 0.409 $/kW h for different life spans), while those with varying current densities, voltages, and power output during operation were able to generate electricity with a very low LCOE (0.12 to 0.357 $/kW h for different life spans).

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Economically Optimal Sizing and Operation Strategy for Solid Oxide Fuel Cells to Effectively Manage Long-Term Degradation

Naeini

Cotton

Adams

2021

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…SOECs, in contrast, are high‐efficiency technologies. [ 36 ] SOECs are under development and just demonstrated at the laboratory level. They remarkably have high energy efficiency and operate in higher temperatures (at ≤800 °C) [ 37 ] while PEM operates at temperatures above 100 °C, and ALK operating temperature is in the range of 60–250 °C.…”

Section: Current Status Of Hydrogen Production and Challengesmentioning

confidence: 99%

Challenges and Future Perspectives on Production, Storage Technologies, and Transportation of Hydrogen: A Review

Omid,

Şahin,

Cora

2024

Energy Tech

View full text Add to dashboard Cite

Hydrogen plays an essential role in the energy‐transition process. Even though currently almost 80–96% of hydrogen is produced from fossil fuel sources in the world, the exciting feature of hydrogen is that it can be produced from renewable sources by splitting water molecules through electrolyzing, and then it can be re‐electrified without any emissions by‐products. Hydrogen is the secondary source of energy as well as an energy carrier that stores and transports the energy produced from other sources such as water, biomass, and fossil fuels. It is a clean‐burning fuel; when oxidized in a fuel cell, it produces heat, electricity, and water vapor as a by‐product, without any carbon emissions. Despite these exciting characteristics of hydrogen, there are still a variety of challenges, such as cost‐effective hydrogen production and its technological challenges, storage, safety, transportation, and cost issues. This article aims to overview the challenges and opportunities in hydrogen production, storage, and transportation along with some future perspectives on hydrogen.

show abstract

“…Advanced techniques, such as synchrotron-based X-ray nanocomputed tomography, have been employed to study electrode degradation mechanisms [155]. Additionally, research on fuel doping strategies and the comparison of hybrid SOFC systems with standalone units reveals potential for reducing electricity costs and CO 2 emissions, underscoring the importance of innovative solutions to enhance SOFC durability and efficiency [161].…”

Section: Strategies For Mitigating Sofc Degradation and Enhancing Sys...mentioning

confidence: 99%

A Comprehensive Review of Thermal Management in Solid Oxide Fuel Cells: Focus on Burners, Heat Exchangers, and Strategies

Li,

Wang,

Chen

et al. 2024

Energies

View full text Add to dashboard Cite

Solid Oxide Fuel Cells (SOFCs) are emerging as a leading solution in sustainable power generation, boasting high power-to-energy density and minimal emissions. With efficiencies potentially exceeding 60% for electricity generation alone and up to 85% when in cogeneration applications, SOFCs significantly outperform traditional combustion-based technologies, which typically achieve efficiencies of around 35–40%. Operating effectively at elevated temperatures (600 °C to 1000 °C), SOFCs not only offer superior efficiency but also generate high-grade waste heat, making them ideal for cogeneration applications. However, these high operational temperatures pose significant thermal management challenges, necessitating innovative solutions to maintain system stability and longevity. This review aims to address these challenges by offering an exhaustive analysis of the latest advancements in SOFC thermal management. We begin by contextualizing the significance of thermal management in SOFC performance, focusing on its role in enhancing operational stability and minimizing thermal stresses. The core of this review delves into various thermal management subsystems such as afterburners, heat exchangers, and advanced thermal regulation strategies. A comprehensive examination of the recent literature is presented, highlighting innovations in subsystem design, fuel management, flow channel configuration, heat pipe integration, and efficient waste heat recovery techniques. In conclusion, we provide a forward-looking perspective on the state of research in SOFC thermal management, identifying potential avenues for future advancements and their implications for the broader field of sustainable energy technologies.

show abstract

Design and eco-technoeconomic analyses of SOFC/GT hybrid systems accounting for long-term degradation effects

Cited by 36 publications

References 42 publications

Economically Optimal Sizing and Operation Strategy for Solid Oxide Fuel Cells to Effectively Manage Long-Term Degradation

Economically Optimal Sizing and Operation Strategy for Solid Oxide Fuel Cells to Effectively Manage Long-Term Degradation

Challenges and Future Perspectives on Production, Storage Technologies, and Transportation of Hydrogen: A Review

A Comprehensive Review of Thermal Management in Solid Oxide Fuel Cells: Focus on Burners, Heat Exchangers, and Strategies

Contact Info

Product

Resources

About