All-electric commercial aviation with solid oxide fuel cell-gas turbine-battery hybrids

Collins, Jeffrey M.; McLarty, Dustin

doi:10.1016/j.apenergy.2020.114787

Cited by 74 publications

(15 citation statements)

References 18 publications

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“…e.g., [72]). A hybrid system employing an SOFC, GTs and lithium ion batteries in order to boost takeoff power was conceptually designed and assessed to be initially viable in larger aircraft applications by Collins et al [73].…”

Section: Fuel Cell-gas Turbine Hybrid Systemsmentioning

confidence: 99%

“…In an attempt to evaluate the application potential of several FC types as introduced in Section 2.2 for the hybrid-concept presented herein, a number of recent publications on FC developments were taken into consideration [21,23,24,29,73,[87][88][89][90]. Note that the focus lies on power performance only-other considerations of employing an FC in an aircraft (e.g., vibration tolerance, transient performance, etc.)…”

Section: Derivation Of Lab-scale Fuel Cell Technology Propertiesmentioning

confidence: 99%

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Initial Assessment of a Fuel Cell—Gas Turbine Hybrid Propulsion Concept

et al. 2022

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A fuel cell—gas turbine hybrid propulsion concept is introduced and initially assessed. The concept uses the water mass flow produced by a hydrogen fuel cell in order to improve the efficiency and power output of the gas turbine engine through burner steam injection. Therefore, the fuel cell product water is conditioned through a process of condensation, pressurization and re-vaporization. The vaporization uses the waste heat of the gas turbine exhaust. The functional principles of the system concept are introduced and discussed, and appropriate methodology for an initial concept evaluation is formulated. Essential technology fields are surveyed in brief. The impact of burner steam injection on gas turbine efficiency and sizing is parametrically modelled. Simplified parametric models of the fuel cell system and key components of the water treatment process are presented. Fuel cell stack efficiency and specific power levels are methodically derived from latest experimental studies at the laboratory scale. The overall concept is assessed for a liquid hydrogen fueled short-/medium range aircraft application. Block fuel savings of up to 7.1% are found for an optimum design case based on solid oxide fuel cell technology. The optimum design features a gas turbine water-to-air ratio of 6.1% in cruise and 62% reduced high-level NOx emissions.

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Section: Fuel Cell-gas Turbine Hybrid Systemsmentioning

confidence: 99%

Section: Derivation Of Lab-scale Fuel Cell Technology Propertiesmentioning

confidence: 99%

Initial Assessment of a Fuel Cell—Gas Turbine Hybrid Propulsion Concept

et al. 2022

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“…This decoupling is possible, too, in the case of air travel, based on investment on new technology. Whilst battery technology may be problematic for air travel in the short and medium term for larger aircraft, liquid hydrogen offers the prospect of low or carbon-neutral flying (Ambrose, 2020;Collins & McLarty, 2020;Petrescu et al, 2020;Verstraete, 2015).…”

Section: Localism/relocalisationmentioning

confidence: 99%

Covid-19, tourism and the advocacy of degrowth

Butcher

2021

Tourism Recreation Research

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This article reviews the advocacy of degrowth in tourism, principally in relation to the emerging debates taking place in the light of the impact of Covid-19. It reviews the origins and meaning of degrowth as a development philosophy in order to place the discussion in a broader context. It proceeds to question some of the economic, environmental and cultural assumptions implicit and often explicit in degrowth advocacy with regard to tourism. The article argues that economic growthin tourism and generallyis a necessary, albeit far from sufficient, condition for addressing the varied problems facing contemporary society manifest in modern tourism. There have been numerous publications, especially in the light of Covid-19, advocating tourism degrowth. There have been none directly questioning the claims made. It is hoped that this article will open up a discursive space for engagement between those who see economic growth as a part of the problem and those who see it as a part of the solution.

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“…At present, the power generation efficiency of the solid oxide fuel cell power generation technology is only about 80%, and a large amount of waste heat is generated (among which the anode temperature can reach 900 • C) [27]. The incompletely burned anode fuel is not fully burned under the condition of oxygen starvation, which further improves the temperature of the reaction chamber [28]. A large number of high-temperature gases enter the gas turbine for power generation, called solid oxide fuel cell-gas turbine hybrid generator, which can significantly improve the power generation efficiency.…”

Section: Solid Oxide Fuel Cell-gas Turbine-turbine Hybrid Power Generation Systemmentioning

confidence: 99%

Review and prospect on key technologies of hydroelectric‐hydrogen energy storage‐fuel cell multi‐main energy system

Liu¹,

Tang²,

Li³

et al. 2021

The Journal of Engineering

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Hydropower engineering is one of the most developed renewable energy generation techniques, which is characterized by high development concentration, large dispatching scale, many power stations, and long transmission distance. However, the unbalanced distribution of hydropower resources and the difficulty of absorbing hydropower lead to a large amount of abandoned water, which causes a large number of economic losses and energy loss in China. The topological structure and principle of the multi-agent energy system of hydropower, hydrogen storage, and fuel cell are introduced here. The key technologies of the multi-agent energy system are introduced from three parts: hydrogen production method of electrolysis water, hydrogen storage method, and application aspect of power generation system of solid oxide fuel cell. The main research direction of realizing the multi-agent energy system of hydroelectric power, hydrogen energy storage, and fuel cell in the future is put forward, which has enlightenment significance for the construction of new power system and the research of realizing the goal of carbon neutral.

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All-electric commercial aviation with solid oxide fuel cell-gas turbine-battery hybrids

Cited by 74 publications

References 18 publications

Initial Assessment of a Fuel Cell—Gas Turbine Hybrid Propulsion Concept

Initial Assessment of a Fuel Cell—Gas Turbine Hybrid Propulsion Concept

Covid-19, tourism and the advocacy of degrowth

Review and prospect on key technologies of hydroelectric‐hydrogen energy storage‐fuel cell multi‐main energy system

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