Modeling of a high temperature heat exchanger to supply hydrogen required by fuel cells through reforming process

Barnoon, Pouya

doi:10.1016/j.egyr.2021.08.171

Cited by 24 publications

(2 citation statements)

References 62 publications

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“…The reason is that EVs produce little pollution and offer high energy efficiency compared to conventional internal combustion engine vehicles that emit a large amount of exhaust gas. As power sources, EVs use lithium-ion batteries (LIBs) and hydrogen fuel cells, which generate electrical energy through chemical reactions by the transport of lithium ions and hydrogen-oxygen reactions, respectively [1]. LIBs have the advantages of high energy density, high voltage, and long lifespan, so the demand for them is increasing [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Optimization of LFP Pouch Cell Tab Design for Uniform Temperature Distribution

2023

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An increase in the size of large-format Li-ion batteries (LIBs) may lead to nonuniform temperature distribution, which degrades the performance and lifespan of the LIBs. To address this issue, we performed design optimization using a 3D electrochemical-thermal coupled model for 55 Ah LFP/graphite large-format pouch cells. To minimize temperature differences in Normal Tab (NT), Lateral Tab (LT), and Counter Tab (CT) types of LIBs, design optimization was performed on the width, height, and attachment position of each positive and negative Table The upper and lower limits of each design variable were set as constraints without exceeding the sum of the total area of the tabs of the initial NT type. Owing to the optimization of the NT, LT, and CT types, the temperature difference in the optimized CT type was 79.2% less than in the initial NT type. Additionally, the potential difference decreased by 37.1%, minimizing ohmic heat. Aging analysis of 2500 cycles was performed to analyze the improvement in the lifespan due to the uniform temperature distribution. Consequently, the capacity retention rate of the optimized CT type was 6.5% higher than that of the initial NT type. Thus, the temperature distribution and lifespan of LIBs were improved by design optimization.

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Section: Introductionmentioning

confidence: 99%

Optimization of LFP Pouch Cell Tab Design for Uniform Temperature Distribution

2023

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“…In recent years, the energy demand has further increased with the rapid economic development of various countries. Due to limited reserves, conventional fossil energy is tight [1] . As an unconventional fossil fuel with abundant reserves and wide distribution, oil shale is considered one of the alternatives to traditional fossil fuels [2] .…”

Section: Introductionmentioning

confidence: 99%

Process route and economic analysis of hydrogen production from oil shale

Yihao,

Yanshu

2023

Proceedings of the 2023 2nd International Conference on Economics, Smart Finance and Contemporary Trade (ESFCT 2023)

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The development of hydrogen production process can provide a new way to use oil shale with high value and low carbon emission. However, the current research only considers hydrogen as a small amount of by-product during oil shale processing, and there is a lack of understanding of the technology aimed at hydrogen production. The technical route of hydrogen produced from oil shale is proposed in this study. The complete process from oil shale raw material to hydrogen product is designed, including six modules of pyrolysis, combustion, gasification, reforming, purification, and flue gas treatment. The effects of key operating parameters on oil shale transformation, product composition, and energy consumption characteristics are analyzed. The results show that the proposed route in this study can produce industrial hydrogen with 99% purity. Under the condition that the CO2 removal rate is 90% and the exhaust gas meets the emission standard, the efficiency of hydrogen production from oil shale is 6.26 Nm 3 -H2/t-shale, with a system energy efficiency of 75.61% and an exergy efficiency of 46.43%. Economic analysis shows that the annual profit and return on investment of this process are significantly higher than that of other shale refining processes. This research provides technology options for hydrogen production and the high-value, clean, and low-carbon utilization of oil shale.

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Pressure distribution and similarity theory of an elbow flowmeter based on experiments and CFD simulations

Meng

Qin

2022

J Braz. Soc. Mech. Sci. Eng.

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Modeling of a high temperature heat exchanger to supply hydrogen required by fuel cells through reforming process

Cited by 24 publications

References 62 publications

Optimization of LFP Pouch Cell Tab Design for Uniform Temperature Distribution

Optimization of LFP Pouch Cell Tab Design for Uniform Temperature Distribution

Process route and economic analysis of hydrogen production from oil shale

Pressure distribution and similarity theory of an elbow flowmeter based on experiments and CFD simulations

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