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Exploring the Introduction of Plug-In Hybrid Flex-Fuel Vehicles in Ecuador

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  • Danilo Arcentales

    (Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ingeniería en Ciencias de la Tierra, Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
    Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal)

  • Carla Silva

    (Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal)

Abstract

In Europe, diesel combustion is being banned due to the NO x and PM 2.5 emissions impact on air quality. The bus sector is being electrified and is increasing its use of alternative fuels, such as natural gas (in spark ignition engines) and bioethanol (in compression ignition engines), to reduce such harmful emissions. Even if a diesel bus is equipped with selective catalytic reduction (SCR), its NO x emissions are reduced its but produces more NH 3 emissions that are PM 2.5 precursors. In developing countries, the air quality is still barely monitored, however, the air quality issue is well known and is being addressed. Moreover, the Ecuadorian sugar cane industry is seeking ways to increase its ethanol production. This is the ideal framework to explore a new technology and energy source in developing economies such as Ecuador. This paper explores the impact of the Ecuadorian diesel bus fleet conversion to hybrid compression ignition ethanol (HEV-ED95), hybrid diesel and plug-in hybrid flex-fuel using electricity and internal combustion engine ICE-E20 and ICE-E100. The impacts are measured in terms of final energy consumption, criteria pollutant emissions (NH 3 , NO x , PM 2.5 ) and 100 years global warming potential in a well-to-wheels framework. For the tank-to-wheels data the method follows the typical values of conversion efficiency from final to useful energy (cross checked with a microsimulation model), the Tier 2 European Environmental Agency approach combined with ethanol influence on compression ratio, lower heating value, criteria emissions taken from a literature review, and well-to-tank emission factors for electricity (10–58% thermal natural gas or coal powerplant contribution), for ethanol from banana industry wastes (ED95, E20 and E100), gasoline and diesel from US databases. A discussion on whether sugarcane biorefineries are necessary is highlighted in the results. All input parameters have an uncertainty range between a minimum and a maximum and the probability for each is giving by a uniform distribution.

Suggested Citation

  • Danilo Arcentales & Carla Silva, 2019. "Exploring the Introduction of Plug-In Hybrid Flex-Fuel Vehicles in Ecuador," Energies, MDPI, vol. 12(12), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2244-:d:239206
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    References listed on IDEAS

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    1. Zhang, Shaojun & Wu, Ye & Liu, Huan & Huang, Ruikun & Yang, Liuhanzi & Li, Zhenhua & Fu, Lixin & Hao, Jiming, 2014. "Real-world fuel consumption and CO2 emissions of urban public buses in Beijing," Applied Energy, Elsevier, vol. 113(C), pages 1645-1655.
    2. Ponce-Jara, M.A. & Castro, M. & Pelaez-Samaniego, M.R. & Espinoza-Abad, J.L. & Ruiz, E., 2018. "Electricity sector in Ecuador: An overview of the 2007–2017 decade," Energy Policy, Elsevier, vol. 113(C), pages 513-522.
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    Cited by:

    1. Danilo Arcentales-Bastidas & Carla Silva & Angel D. Ramirez, 2022. "The Environmental Profile of Ethanol Derived from Sugarcane in Ecuador: A Life Cycle Assessment Including the Effect of Cogeneration of Electricity in a Sugar Industrial Complex," Energies, MDPI, vol. 15(15), pages 1-24, July.
    2. Ramirez, A.D. & Boero, A. & Rivela, B. & Melendres, A.M. & Espinoza, S. & Salas, D.A., 2020. "Life cycle methods to analyze the environmental sustainability of electricity generation in Ecuador: Is decarbonization the right path?," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).
    3. Aloisio S. Nascimento Filho & Rafael G. O. dos Santos & João Gabriel A. Calmon & Peterson A. Lobato & Marcelo A. Moret & Thiago B. Murari & Hugo Saba, 2022. "Induction of a Consumption Pattern for Ethanol and Gasoline in Brazil," Sustainability, MDPI, vol. 14(15), pages 1-11, July.
    4. Bogdan Ovidiu Varga & Florin Mariasiu & Cristian Daniel Miclea & Ioan Szabo & Anamaria Andreea Sirca & Vlad Nicolae, 2020. "Direct and Indirect Environmental Aspects of an Electric Bus Fleet Under Service," Energies, MDPI, vol. 13(2), pages 1-12, January.

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