TY - JOUR
T1 - Strategies towards a more sustainable aviation
T2 - A systematic review
AU - Afonso, Frederico
AU - Sohst, Martin
AU - Diogo, Carlos M. A.
AU - Rodrigues, Simão S.
AU - Ferreira, Ana
AU - Ribeiro, Inês
AU - Marques, Ricardo
AU - Rego, Francisco F. C.
AU - Sohouli, Abdolrasoul
AU - Portugal-Pereira, Joana
AU - Policarpo, Hugo
AU - Soares, Bruno
AU - Ferreira, Bruna
AU - Fernandes, Edgar C.
AU - Lau, Fernando
AU - Suleman, Afzal
N1 - info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT#
info:eu-repo/grantAgreement/FCT/OE/PD%2FBD%2F128139%2F2016/PT#
A. Suleman acknowledges also the NSERC Canada Research Chair Program.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - As climate change is exacerbated and existing resources are depleted, the need for sustainable industries becomes ever so important. Aviation is not an exception. Despite the overall carbon dioxide emissions related to the aviation sector accounts for 2%–4% currently, forecasts for air travel indicate an annual growth of 3%–5% and other industries present more potential to reduce carbon emissions once they recur to an increasing use of renewable energies. This option is more difficult in aeronautics since an efficient and lighter energy storage system is required and the current state of the art in battery technology is far from the specific energy densities of fossil fuels and its production is not friendly to the environment. Thus, a herculean effort to integrate several promising mitigation strategies in an efficient way is required. In this paper, a review of the most upfront solutions towards greener aviation is presented and categorized as follows: concepts of operations, energy storage, propulsion systems, aerodynamics, structures, materials, and manufacturing processes. In the end, potential synergies between the different technologies to achieve green aviation are proposed.
AB - As climate change is exacerbated and existing resources are depleted, the need for sustainable industries becomes ever so important. Aviation is not an exception. Despite the overall carbon dioxide emissions related to the aviation sector accounts for 2%–4% currently, forecasts for air travel indicate an annual growth of 3%–5% and other industries present more potential to reduce carbon emissions once they recur to an increasing use of renewable energies. This option is more difficult in aeronautics since an efficient and lighter energy storage system is required and the current state of the art in battery technology is far from the specific energy densities of fossil fuels and its production is not friendly to the environment. Thus, a herculean effort to integrate several promising mitigation strategies in an efficient way is required. In this paper, a review of the most upfront solutions towards greener aviation is presented and categorized as follows: concepts of operations, energy storage, propulsion systems, aerodynamics, structures, materials, and manufacturing processes. In the end, potential synergies between the different technologies to achieve green aviation are proposed.
KW - Aircraft performance optimization
KW - Energy efficiency
KW - Environmental impact
KW - Climate change mitigation
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85146416448&origin=resultslist&sort=plf-f&src=s&st1=10.1016%2fj.paerosci.2022.100878&sid=a51c9cdaf18c712771038ad38f870086&sot=b&sdt=b&sl=35&s=DOI%2810.1016%2fj.paerosci.2022.100878%29&relpos=0&citeCnt=3&searchTerm=
U2 - 10.1016/j.paerosci.2022.100878
DO - 10.1016/j.paerosci.2022.100878
M3 - Review article
SN - 0376-0421
VL - 137
JO - Progress in Aerospace Sciences
JF - Progress in Aerospace Sciences
M1 - 100878
ER -