Fuel-burning thermoelectric generators for the future of electric vehicles

Yazawa, Kazuaki; Shakouri, Ali

doi:10.1016/j.enconman.2020.113523

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…In particular, the European target of net zero greenhouse gas emissions by 2050 involves a policy towards hydrogen supported electrification. Because of the limited energy density of batteries (Yazawa & Shakouri, 2021), the use of hydrogen may become indispensable, in particular for long haul transportation, such as trucks, buses (Li, Djilali, et al, 2022), or aircraft (Verstraete, 2015), which can rely on fuel cells or internal combustion engines to convert chemical power to useful power. Also, the incentive of governments to emit less greenhouse gases and become less dependent on fossil fuels for grid electricity generation, contributes to a substantial growth in wind and solar energy production (Androniceanu & Sabie, 2022).…”

Section: Introductionmentioning

confidence: 99%

Mineralogy, microstructures and geomechanics of rock salt for underground gas storage

Vandeginste

Buysschaert

et al. 2023

Deep Underground Science and Engineering

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Rock salt has excellent properties for its use as underground leak‐proof containers for the storage of renewable energy. Salt solution mining has long been used for salt mining, and can now be employed in the construction of underground salt caverns for the storage of hydrogen gas. This paper presents a wide range of methods to study the mineralogy, geochemistry, microstructure and geomechanical characteristics of rock salt, which are important in the engineering of safe underground storage rock salt caverns. The mineralogical composition of rock salt varies and is linked to its depositional environment and diagenetic alterations. The microstructure in rock salt is related to cataclastic deformation, diffusive mass transfer and intracrystalline plastic deformation, which can then be associated with the macrostructural geomechanical behavior. Compared to other types of rock, rock salt exhibits creep at lower temperatures. This behavior can be divided into three phases based on the changes in strain with time. However, at very low effective confining pressure and high deviatoric stress, rock salt can exhibit dilatant behavior, where brittle deformation could compromise the safety of underground gas storage in rock salt caverns. The proposed review presents the impact of purity, geochemistry and water content of rock salt on its geomechanical behavior, and thus, on the safety of the caverns.

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Section: Introductionmentioning

confidence: 99%

Mineralogy, microstructures and geomechanics of rock salt for underground gas storage

Vandeginste

Buysschaert

et al. 2023

Deep Underground Science and Engineering

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“…Hence, it is a better choice to combine a thermal cycle-based generating system with a non-thermodynamic cycle power device. Thermoelectric generators (TEGs) [25,26], which are one of the nonthermodynamic cycle devices qualified to build combined power systems [27][28][29], have the potential to be combined with CBC on hypersonic vehicles. In previous research endeavors, a combined system that pairs a CBC with a TEG generator cooled by liquid methane has been proposed.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Closed-Brayton-Cycle and Thermoelectric Generator Combined Power Generation System Coupled with Hydrocarbon-Fueled Scramjet

Cheng,

Jing,

et al. 2023

Energies

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Closed-Brayton-cycle (CBC) is a potential scheme to provide high-power electricity for hypersonic vehicles, but finite cold source onboard limits its power level. A thermoelectric generator (TEG) combined with CBC is a feasible power enhancement approach by extending the available temperature range of cold source. In this study, a performance assessment of the CBC-TEG combined power generation system coupled with hydrocarbon-fueled scramjet is performed to exhibit its possible operation characteristics and performance limitations on hypersonic vehicles. Results indicate that, at a fixed flight Mach number, a larger fuel equivalence ratio (φ) leads to a higher total electric power and CBC power but a lower TEG power. There are three limitations on the fuel equivalence ratio, TEG temperature difference, and combustion heat dissipation adjustment for the operation of CBC-TEG. The total power of CBC-TEG can be adjusted by φ, but the adjustable range becomes smaller at higher Ma. The electric quantity at unit fuel mass increases with φ, mainly due to the higher thermoelectric conversion efficiency. Moreover, the maximum value of the electric quantity at unit fuel mass for CBC-TEG reaches 277.0 kJ/kg, which is about 33.4% higher than that of standalone CBC.

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Exploring the dynamic characteristics of thermoelectric generator under fluctuations of exhaust heat

Luo,

Yan,

Chen

et al. 2024

International Journal of Heat and Mass Transfer

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Fuel-burning thermoelectric generators for the future of electric vehicles

Cited by 5 publications

References 24 publications

Mineralogy, microstructures and geomechanics of rock salt for underground gas storage

Mineralogy, microstructures and geomechanics of rock salt for underground gas storage

Performance Assessment of Closed-Brayton-Cycle and Thermoelectric Generator Combined Power Generation System Coupled with Hydrocarbon-Fueled Scramjet

Exploring the dynamic characteristics of thermoelectric generator under fluctuations of exhaust heat

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