Review of sustainable energy carriers for aviation: Benefits, challenges, and future viability

Analysing the Role of the Propulsive System in the Global Civil Aviation Energy Optimisation Framework

“…Prior to discussing the overwhelming variety of possible scenarios put forward by the industry, a glimpse at similar proposals from the research community is provided. Ansell [24] reviews the sustainable energy carriers for aviation, arguing strongly about how aviation is an indispensable enabler for human connection, well-functioning economy and social development, while at the same time pointing out that viability of the sustainable energy carriers depends strongly on developments outside of the aviation sector. In complement to that example, Jensen et al [25] argue that the optimistic prospect for "net-zero" emissions by the US aviation industry by 2050 is mainly predicated on the "sustainable aviation fuels" and employment of market-based (that is, external) measures.…”

A Review of Novel and Non-Conventional Propulsion Integrations for Next-Generation Aircraft

“…In this context, specific attention is being devoted to research into non-conventional solutions for the integration of the propulsion system, involving two different interconnected technological threads. From a general point of view, new types of propulsion systems are under investigation, and technologies involving new fuels, such as hydrogen [11][12][13][14][15][16][17][18] or sustainable aviation fuels [19][20][21][22], or electric and hybrid-electric powertrains [23][24][25][26][27][28][29][30][31][32], are under development to provide breakthrough forward advancements in the field. In addition to these important innovations, and in a way that is generally complementary, non-conventional powertrain/airframe integrations are increasingly being investigated since, either as standalone or in combination with previous new power supply concepts, they can contribute to general improvements in aircraft performance, with significant implications for reducing environmental impact.…”

Analysis of Boarding Strategies on an Airbus A320 Using Discrete Event Simulation

“…The field of aviation has been requested to minimize its carbon footprint. To this end, a significant contribution includes the implementation of sustainable boarding procedures, thus ensuring that the aviation sector moves further along the path of environmentally friendly and responsible practices [10][11][12][13]. There are several external factors that impact airline boarding procedures, such as the following: the layout of the airport, security regulations, type of aircraft, weather conditions, gate availability, customer service, among others.…”