Market and Technological Perspectives for the New Generation of Regional Passenger Aircraft

Brdnik, Anita Prapotnik; Kamnik, Rok; Marksel, Maršenka; Božičnik, Stanislav

doi:10.3390/en12101864

Cited by 15 publications

(4 citation statements)

References 21 publications

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“…Furthermore, these hydrogen-fueled and electric engines are potential candidates for fueling short-distance flights, such as domestic flights [61]. However, fuel-cell aircraft would be economically feasible only when the price of hydrogen fuel is highly competitive against conventional fuels such as kerosene [73].…”

Section: Fuel Cellsmentioning

confidence: 99%

Climate Change Mitigation Pathways for the Aviation Sector

et al. 2021

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Even though the contribution of the aviation sector to the global economy is very notable, it also has an adverse impact on climate change. Improvements have been made in different areas (i.e., technology, sustainable aviation fuel, and design) to mitigate these adverse effects. However, the rate of improvement is small compared to the increase in the demand for air transportation. Hence, greenhouse gas emissions in the aviation sector are steadily increasing and this trend is expected to continue unless adequately addressed. In this context, this study examined the following: (i) the factors that affect the growth of aviation, (ii) trends in greenhouse gas emissions in the sector, (iii) trends in energy demand, (iv) mitigation pathways of emissions, (v) mitigation challenges for the International Civil Aviation Organization, (vi) achievements in mitigating emissions, (vii) barriers against mitigating emissions, and (viii) approaches of overcoming barriers against emissions mitigation. This study finds that continued research and development efforts targeting aircraft fuel burn efficiency are crucial in reducing greenhouse gas emissions. Although biofuels are promising for the reduction of aviation emissions, techniques to reduce NOx emissions could enhance large-scale deployment. Pragmatic market-based mechanisms, such as the Emissions Trading Scheme (ETS) and/or carbon tax must be enforced on a global scale to capitalize on a collective stakeholder effort to curb CO2 emissions. The findings of this study will help in understanding the emissions and energy consumption scenarios, which will provide a comprehensive package of mitigation pathways to overcome future emissions reduction challenges in the aviation sector.

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Section: Fuel Cellsmentioning

confidence: 99%

Climate Change Mitigation Pathways for the Aviation Sector

et al. 2021

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“…Article [6] describes a solution to reduce harmful emissions and noise in the vicinity of airports in the category of regional passenger aircraft. The authors defined the specifications of aircraft and market requirements, which correspond to the actual sectors of air transport with the most appropriate introduction of all-electric or hybrid aircraft.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

The modernization concept of aircraft An-26 and An-140 based on the use of a hybrid power system

Shmyrov¹,

Loginov²,

Fil³

et al. 2020

EEJET

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This paper reports a modernization concept of aircraft An-26 and An-140 based on the use of a hybrid basic propulsion system (HBPS). The study object is the aircraft of transport and passenger categories in the weight dimension from 20 to 25 tons. The analysis of the ways of modernization has shown that under the new market conditions two directions in the development of light aircraft «Antonov» become relevant. The first is the modernization of the existing fleet of An-26, the second is the construction of an An-140T ramp transport variant based on the An-140 aircraft. One of the considered ways of such modernization is to equip the aircraft with hybrid basic propulsion systems consisting of the gas-turbine and power electric motors, which drive the rotation of the propeller. The use of HBPS makes it possible to optimize the operation of the gas-turbine engine over a narrow traction-speed range -only for the cruising section of the flight. This makes it possible to design a GTE with high fuel and weight efficiency. In this case, noise and harmful emissions could be significantly lower. The analysis has been given of existing aviation hybrid propulsion systems with recommendations on the choice of the optimal scheme to modernize aircraft An-26 and An-140. It is proposed to solve the task by choosing the option of a basic propulsion system with a moderate degree of hybridization, based on the well-established engine TV3-117VMA-SBM1.That improves the flight range of An-26 and An-140 with a payload capacity of 4.5-5 tons by 1.4-1.7 times, respectively. The results obtained confirm the correctness of the proposed modernization concept. The analysis results demonstrate a significant improvement in the flight characteristics of the aircraft, as well as compliance with current and projected environmental standards. The results reported could be recommended for the practical modernization of aircraft An-26 and An-140

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“…However, there are major technical limitations to the practical application of this technology, arising from the low energy density of batteries even considering the more optimistic forecasts of their technological development, as such important components introduce blocking restrictions in terms of weight and limit the application of electric propulsion to small aircraft only [13]. Currently, more realistically feasible solutions, especially for regional aircraft [14][15][16], relate to the combination of electric and thermal propulsion in architectures referred to as hybrid-electric [17][18][19][20]. The uncertainty on the actual degree of technological maturity that batteries may reach in the next years makes it tricky to predict what the actual range of use of hybrid-electric aircraft will be in the near future and what return in terms of performance gains can be reasonably achieved.…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis for Hybrid–Electric Regional Aircraft Conceptual Design and Development

Palaia,

Abu Salem,

Quarta

2023

Applied Sciences

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This paper proposes a conceptual analysis of the limitations related to the development (and integration) of hybrid–electric propulsion on regional transport aircraft, with the aim to identify a feasibility space for this innovative aircraft concept. Hybrid–electric aircraft have attracted the interest of aeronautical research as these have the potential to reduce fuel consumption and, thus, the related greenhouse gas emissions. Nevertheless, considering the development of such an aircraft configuration while keeping the constraints deriving from technological and/or operating aspects loose could lead to the analysis of concepts that are unlikely to be realised. In this paper, specifically to outline the boundaries constraining the actual development of such aircraft, the influence on overall aircraft design and performance of the main technological, operating, and design factors characterising the development of such a configuration is analysed and discussed at a conceptual level. Specifically, the current achievable gravimetric battery energy density (BED) is identified as the main limiting factor for the development of regional hybrid–electric aircraft, and a sensitivity analysis shows the correlation of this important technological parameter with aircraft performance in terms of both fuel consumption and energy efficiency. In this context, minimum technological development thresholds are therefore identified to enable the effective development of this type of aircraft; namely, a minimum of BED = 500 Wh/kg at battery pack level is identified as necessary to provide tangible benefits. From an operating point of view, flight distance is the most limiting design requirement, and a proper assessment of the design range is necessary if a hybrid–electric aircraft is to be designed to achieve lower emissions than the state of the art; flight ranges equal to or lower than 600 nm are to be considered for this type of aircraft. As a bridging of both of the previous constraints, a change in the design paradigm with respect to established practices for state-of-the-art aircraft is necessary. More specifically, penalisations in maximum take-off weight and overall aircraft energy efficiency may be necessary if the aim is to reduce direct in-flight consumption by means of integration of hybrid–electric powertrains.

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Market and Technological Perspectives for the New Generation of Regional Passenger Aircraft

Cited by 15 publications

References 21 publications

Climate Change Mitigation Pathways for the Aviation Sector

Climate Change Mitigation Pathways for the Aviation Sector

The modernization concept of aircraft An-26 and An-140 based on the use of a hybrid power system

Parametric Analysis for Hybrid–Electric Regional Aircraft Conceptual Design and Development

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