Hybrid Vehicles as a Transition for Full E-Mobility Achievement in Positive Energy Districts: A Comparative Assessment of Real-Driving Emissions

Gloria Pignatta and Navid Balazadeh
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Gloria Pignatta: School of Built Environment, Faculty of Arts, Design, and Architecture, University of New South Wales (UNSW), Sydney, NSW 2052, Australia
Navid Balazadeh: School of Sustainable Energy Engineering, Simon Fraser University, Surrey, BC V3T 0A3, Canada

Energies, 2022, vol. 15, issue 8, 1-18

Abstract: Air pollution is a major concern, particularly in developing countries. Road transport and mobile sources are considered the root causes of air pollutants. With the implementation of zero-carbon and zero-energy concepts at the district scale, cities can make great strides towards sustainable development. Urban planning schemes are moving from mere building solutions to the larger positive energy district (PED) scale. Alongside other technology systems in PEDs, increased uptake of electro-mobility solutions can play an important role in CO 2 mitigation at the district level. This paper aims to quantify the exhaust emissions of six conventional and two fully hybrid vehicles using a portable emission measurement system (PEMS) in real driving conditions. The fuel consumption and exhaust pollutants of the conventional and hybrid vehicles were compared in four different urban and highway driving routes during autumn 2019 in Iran. The results showed that hybrid vehicles presented lower fuel consumption and produced relatively lower exhaust emissions. The conventional group’s fuel consumption (CO 2 emissions) was 11%, 41% higher than that of the hybrids. In addition, the hybrid vehicles showed much better fuel economy in urban routes, which is beneficial for PEDs. Micro-trip analysis showed that although conventional vehicles emitted more CO 2 at lower speeds, the hybrids showed a lower amount of CO 2 . Moreover, in conventional vehicles, NO x emissions showed an increasing trend with vehicle speed, while no decisive trend was found for NO x emissions versus vehicle speed in hybrid vehicles.

Keywords: electro-mobility; on-road emissions; PEMS test; road test; passenger cars; air pollution; emission standards; positive energy district (PED); energy and mobility; sustainability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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