Thermodynamic assessment of biomass-fueled solid oxide fuel cell integrated gas turbine hybrid configuration

Sinha, Abhinav Anand; Sanjay,; Ansari, Mohd. Zahid; Shukla, Anoop Kumar; Verma, Tikendra Nath; Choudhary, Tushar

doi:10.1016/j.seta.2023.103242

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…SOFC, as a high-temperature fuel cell, demonstrates the capability to generate substantial highpotential exhaust heat, which contributes to its enhanced energy efficiency [13,14]. It efficiently converts chemical energy into electricity and can accommodate different types of fuel for its operation [15,16]. LPG has emerged as an exceptionally promising fuel option for fuel cells, primarily attributed to its cost-effectiveness, ease of storage and transportation, lower flammability compared to alternative fuels, and its inherent safety features, including a detectable odor in case of leakage.…”

Section: Introductionmentioning

confidence: 99%

A Novel Designation of Solid Oxide Fuel Cell-Integrated System Using LPG as Fuel for Marine Vessels

Duong,

Ryu,

Jung

et al. 2024

International Journal of Energy Research

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This research showcases the seamless integration of solid oxide fuel cells (SOFC) with waste heat recovery systems, utilizing liquefied petroleum gas (LPG) as the primary fuel source. The focus of the study is on efficiently harnessing the cold energy from the LPG supply to produce substantial power for the entire system. To optimize energy utilization, a gas turbine (GT) and steam Rankine cycle (SRC) are integrated to effectively convert waste heat from the system into useful work and power. Additionally, a waste heat boiler (WHB) is incorporated to provide superheated vapor steam for seafarer accommodation. A detailed thermodynamic analysis and investigation of the proposed integrated system are performed. The simulations and optimizations of combined system are conducted using ASPEN HYSYS V12.1. Thermodynamic equations based on the fundamental laws of thermodynamics are employed to estimate system performance indicators, and the exergy destruction in major components is assessed to optimize the system’s design and operation. The proposed system exhibits impressive energy and exergy efficiencies, calculated at 52.65% and 51.10%, respectively. Moreover, the waste heat recovery combined cycles contribute an additional 1,759.73 kW, equivalent to 31.65% of the total system output. The innovative models are validated against experimental data from the literature, demonstrating strong agreement. Furthermore, a comprehensive parametric study investigates the influence of varying the current density from 900 to 1,950 A/m2, leading to a total energy efficiency variation of 41.59%, ranging from 82.45% to 40.86%. The organic Rankine cycle (ORC) performs exceptionally well, capitalizing on both cold energy and high-temperature waste heat to achieve high energy recovery efficiency. The WHB is capable of providing 8,200 kg/h of superheated vapor stream at 151°C and 499 kPa for seafarer accommodation and heating purposes. The economic viability analysis is conducted to assess the potential for investment, maintenance costs, and the payback period associated with the proposed system.

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Section: Introductionmentioning

confidence: 99%

A Novel Designation of Solid Oxide Fuel Cell-Integrated System Using LPG as Fuel for Marine Vessels

Duong,

Ryu,

Jung

et al. 2024

International Journal of Energy Research

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On the influence of low octane gasoline and biodiesel on diesel engine operating characteristics

Aboud,

Almanzalawy,

Elbatran

et al. 2023

Petroleum Science and Technology

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Solid Oxide Fuel Cell Anode Porosity and Tortuosity Effect on the Exergy Efficiency

Zouhri,

Mohamed,

Nulph

et al. 2024

International Journal of Energy Research

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Improving the efficiency of solid oxide fuel cells (SOFCs) is critical for advancing clean energy solutions on a global scale. One major challenge in enhancing SOFC efficiency is reducing anode diffusion polarization, which can significantly hinder performance. This study addresses this issue by investigating the effects of anode tortuosity and porosity on the exergy efficiency of SOFCs. The novelty of this research lies in its comprehensive numerical model, which uniquely incorporates detailed material properties and their impact on SOFC performance—specifically focusing on anode tortuosity and porosity. Using advanced Multiphysics software, we developed a model that solves mass, electron transfer, and energy equations discretized via the finite differences method. The study meticulously examines how variations in these parameters influence SOFC efficiency, providing new insights into optimal anode design. Our methodology involves simulating different anode configurations to pinpoint the key parameters that affect exergy efficiency, thereby minimizing the experimental costs and time associated with traditional approaches. The quantitative results of this study are significant. We found that an anode tortuosity of 5.5 and a porosity range of 0.05–0.1 optimize exergy efficiency, achieving a 15% improvement compared to conventional designs. Additionally, a mean pore radius between 15 and 20 µm was identified as optimal for enhancing cell voltage. These findings elucidate the critical relationship between anode material properties and SOFC performance, offering a practical pathway to improving efficiency. This research provides a novel numerical approach to understanding and optimizing anode characteristics in SOFCs. By highlighting the importance of specific material properties, such as tortuosity and porosity, and demonstrating their impact on exergy efficiency, this study offers valuable guidance for future SOFC design and development.

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Thermodynamic assessment of biomass-fueled solid oxide fuel cell integrated gas turbine hybrid configuration

Cited by 4 publications

References 30 publications

A Novel Designation of Solid Oxide Fuel Cell-Integrated System Using LPG as Fuel for Marine Vessels

A Novel Designation of Solid Oxide Fuel Cell-Integrated System Using LPG as Fuel for Marine Vessels

On the influence of low octane gasoline and biodiesel on diesel engine operating characteristics

Solid Oxide Fuel Cell Anode Porosity and Tortuosity Effect on the Exergy Efficiency

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