Alternative fuel technologies emissions for road heavy-duty trucks: a review

Teixeira, Ana Carolina Rodrigues; Machado, Pedro Gerber; Collaço, Flávia Mendes de Almeida; Mouette, Dominique

doi:10.1007/s11356-021-13219-8

Cited by 30 publications

(8 citation statements)

References 73 publications

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“…The adoption of alternative fuels is likely to significantly reduce emissions [64], particularly when EVs are powered by renewable energy sources [65]. The impact of this trend on congestion and accidents varies depending on the adoption rate and the characteristics of alternative fuel vehicles [66].…”

Section: Transport Techniques and Technologymentioning

confidence: 99%

Impact of Transport Trends on Sustainability in the Western Balkans: A Future-Oriented Business Sector Perspective

Letnik,

Hanžič,

Mencinger

et al. 2023

Sustainability

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This study examines the impact of emerging transport trends on the Western Balkans and their potential to improve the sustainability and efficiency of the transport sector in the region. In the context of global efforts to reduce environmental impacts and improve transport safety, the study aims to better understand the perspective of the business sector in order to align strategic planning for the introduction of new transport technologies and practices with the expectations of the business sector. Using a questionnaire-based survey on the Mentimeter platform, the study gathers insights from 49 transport and logistics experts. The analysis uses violin plots and heat maps to visualise the expected impact of the identified trends. The results show a consensus among the experts that the emerging trends are likely to lead to a reduction in accidents, congestion, and emissions, while at the same time increasing operating costs and investment in infrastructure. In particular, trends such as alternative fuels, electrification, and smart city initiatives are highlighted as important drivers for reducing emissions. The study concludes that while these trends are likely to lead to the achievement of environmental and safety goals, they also lead to economic challenges as operating costs increase and significant infrastructure investment is required. The study emphasises the need for strategic investment, policy adjustments, and capacity building to lead the Western Balkans towards a sustainable transport future.

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Section: Transport Techniques and Technologymentioning

confidence: 99%

Impact of Transport Trends on Sustainability in the Western Balkans: A Future-Oriented Business Sector Perspective

Letnik,

Hanžič,

Mencinger

et al. 2023

Sustainability

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“…China's transport produced 950Mt CO2 emissions in 2020, accounting for about 13% of global transport emissions and 9% of China's total energy related emissions (IEA 2021a). Road freight is considered to be the main cause of the global greenhouse effect (Teixeira et al 2021). By the end of 2021, there were 12.3196 million road business vehicles in China, including 11.7326 million trucks, accounting for approximately 95% of the total road business vehicles (Ministry of Transport of the People's Republic of China 2022).…”

Section: Introductionmentioning

confidence: 99%

Impact assessment of crude oil mix, electricity generation mix, and vehicle technology on road freight emission reduction in China

Jiang

Yan

Gong

et al. 2022

Environ Sci Pollut Res

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In order to achieve net zero emissions, the global transportation sector needs to reduce emissions by 90% from 2020 to 2050, and road freight has a significant potential to reduce emissions. In this context, emission reduction paths should be explored for road freight over the fuel life cycle. Based on panel data from 2015 to 2020 in China, China's version of the GREET model was established to evaluate the impact of the crude oil mix, electricity mix, and vehicle technology on China's reduction in road freight emissions. The results show that the import share of China's crude oil has increased from 2015 to 2020, resulting in an increase in the greenhouse gas (GHG) emission intensity of ICETs in the well-to-tank (WTT) stage by 7.3% in 2020 compared with 2015. Second, the share of China's coal-fired electricity in the electricity mix decreased from 2015 to 2020, reducing the GHG emission intensity of battery electric trucks (BETs), which is approximately 6.5% lower in 2020 than in 2015. Third, different vehicle classes and types of BETs and fuel cell electric trucks (FCETs) have different emission reduction effects, and their potential for energy-saving and emission reduction at various stages of the fuel lifecycle are different. In addition, in a comparative study of the vehicle technology, the results show that: (1) for medium-duty truck (MDT) and heavy-duty truck (HDT), FCETs have lower GHG emission intensity than BETs, and replacing diesel-ICETs can significantly reduce GHG emissions from road freight; (2) for light-duty truck (LDT), BETs and FCETs have the highest GHG emission reduction potential; thus, improving technologies such as electricity generation, hydrogen fuel production, hydrogen fuel storage, and transportation will help to improve the emission reduction capabilities of BETs and FCETs. Therefore, policymakers should develop emission standards for road freight based on vehicle class, type, and technology.

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“…With more and more in-depth research, researchers have found that there are many problems to solve when using NG as engine fuel directly, among which the most prominent ones are: Firstly, NG is a gaseous fuel, and the intake efficiency will be reduced if using out of cylinder premixed method [17]. Secondly, the high ignition temperature of natural gas requires high ignition energy [18]. Thirdly, when the mixture ratio of NG and air is not uniform, it will cause a series of engine problems [18].…”

Section: Introductionmentioning

confidence: 99%

“…Secondly, the high ignition temperature of natural gas requires high ignition energy [18]. Thirdly, when the mixture ratio of NG and air is not uniform, it will cause a series of engine problems [18]. For example, a thicker mixture will affect the detonation phenomenon, and if the mixture ratio is too thin, it will lead to an increase of CO and THC emission [19].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Injection Strategies on Combustion and Emission Characteristics of Diesel Engine Fueled with Dual Fuel

et al. 2021

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In this work, an effective numerical simulation method was developed and used to analyze the effects of natural gas mixing ratio and pilot-main injection, main-post injection, and pilot-main-post injection strategies on the combustion and emission characteristics of diesel engine fueled with dual fuel. Firstly, the one-dimensional calculation model and three-dimensional CFD model of the engine were established by AVL-BOOST and AVL-Fire, respectively. In addition, the simplified chemical kinetics mechanism was adopted, which could accurately calculate the combustion and emission characteristics of the engine. The results show that the cylinder pressure and heat release rate decrease with the increase of the natural gas mixing ratio and the NOx emission is reduced. When the NG mixing ratio is 50%, the NOx and CO emission are reduced by 47% and 45%, respectively. When the SODI3 is 24 °CA ATDC, the NOx emission is reduced by 29.6%. In addition, with suitable pilot-main injection and pilot-main-post injection strategies, the combustion in the cylinder can be improved and the trade-off relationship between NOx and soot can be relaxed. Thus, the proper main-post injection strategy can improve the combustion and emission characteristics, especially the reduction in the NOx and CO emissions.

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Alternative fuel technologies emissions for road heavy-duty trucks: a review

Cited by 30 publications

References 73 publications

Impact of Transport Trends on Sustainability in the Western Balkans: A Future-Oriented Business Sector Perspective

Impact of Transport Trends on Sustainability in the Western Balkans: A Future-Oriented Business Sector Perspective

Impact assessment of crude oil mix, electricity generation mix, and vehicle technology on road freight emission reduction in China

Effects of Different Injection Strategies on Combustion and Emission Characteristics of Diesel Engine Fueled with Dual Fuel

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