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Comparative environmental assessment of Athens urban buses—Diesel, CNG and biofuel powered

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  • Nanaki, E.A.
  • Koroneos, C.J.
  • Xydis, G.A.
  • Rovas, D.

Abstract

Greenhouse gases (GHGs) emitted by road transport vehicles as a direct result of fossil fuel combustion and other environmental pollutants released throughout the life cycle of petroleum based fuels, encourage a shift towards alternative transport fuels. Within this frame, an environmental assessment was performed so as to evaluate the environmental implications of alternative fuels (natural gas and biofuels) penetration in the city buses of the city of Athens. The results are evaluated in terms of CO2, CO, HC, PM and NOx emissions. The findings show that CO2 emissions are significantly reduced in CNG buses compared to diesel powered buses. CO2 emissions can also be reduced by 7.85% in B10 blends and 78.45% in B100 blends, compared to diesel. The environmental assessment can be considered as a basis so as to investigate the viability of replacement of petroleum- based diesel with natural gas and biofuels in city transport buses. Concepts for sustainable bus transportation can be incorporated using the methodology defined in this study, in order to promote a sustainable transportation system and mitigate the climate change.

Suggested Citation

  • Nanaki, E.A. & Koroneos, C.J. & Xydis, G.A. & Rovas, D., 2014. "Comparative environmental assessment of Athens urban buses—Diesel, CNG and biofuel powered," Transport Policy, Elsevier, vol. 35(C), pages 311-318.
    • Handle: RePEc:eee:trapol:v:35:y:2014:i:c:p:311-318
    DOI: 10.1016/j.tranpol.2014.04.001
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    References listed on IDEAS

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    1. Papagiannaki, Katerina & Diakoulaki, Danae, 2009. "Decomposition analysis of CO2 emissions from passenger cars: The cases of Greece and Denmark," Energy Policy, Elsevier, vol. 37(8), pages 3259-3267, August.
    2. Koroneos, C. & Nanaki, E., 2007. "Environmental assessment of the Greek transport sector," Energy Policy, Elsevier, vol. 35(11), pages 5422-5432, November.
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    3. Puricelli, S. & Cardellini, G. & Casadei, S. & Faedo, D. & van den Oever, A.E.M. & Grosso, M., 2021. "A review on biofuels for light-duty vehicles in Europe," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    4. Pérez, Javier & de Andrés, Juan Manuel & Borge, Rafael & de la Paz, David & Lumbreras, Julio & Rodríguez, Encarnación, 2019. "Vehicle fleet characterization study in the city of Madrid and its application as a support tool in urban transport and air quality policy development," Transport Policy, Elsevier, vol. 74(C), pages 114-126.
    5. Rajaeifar, Mohammad Ali & Tabatabaei, Meisam & Aghbashlo, Mortaza & Nizami, Abdul-Sattar & Heidrich, Oliver, 2019. "Emissions from urban bus fleets running on biodiesel blends under real-world operating conditions: Implications for designing future case studies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 111(C), pages 276-292.
    6. Lv, Zongyan & Wu, Lin & Yang, Zhiwen & Yang, Lei & Fang, Tiange & Mao, Hongjun, 2023. "Comparison on real-world driving emission characteristics of CNG, LNG and Hybrid-CNG buses," Energy, Elsevier, vol. 262(PB).
    7. George Xydis & Luca Pagliaricci & Živilė Paužaitė & Vygintas Grinis & Gyula Sallai & Peter Bakonyi & Radoslav Vician, 2021. "SMARTIES Project: The Survey of Needs for Municipalities and Trainers for Smart Cities," Challenges, MDPI, vol. 12(1), pages 1-10, May.
    8. George Dalianis & Evanthia Nanaki & George Xydis & Efthimios Zervas, 2016. "New Aspects to Greenhouse Gas Mitigation Policies for Low Carbon Cities," Energies, MDPI, vol. 9(3), pages 1-16, February.
    9. Ching-Chih Chang & Po-Chien Huang, 2022. "Carbon footprint of different fuels used in public transportation in Taiwan: a life cycle assessment," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 24(4), pages 5811-5825, April.

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