Assessment of alternative fuel and powertrain transit bus options using real-world operations data: Life-cycle fuel and emissions modeling

Xu, Yanzhi; Gbologah, Franklin E.; Lee, Dong-Yeon; Liu, Haobing; Rodgers, Michael O.; Guensler, Randall

doi:10.1016/j.apenergy.2015.04.112

Cited by 97 publications

(43 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For the CNG LDT application type, the result of this study is 10.4%, which is a more pessimistic result than that obtained for Canada (Shahraeeni et al 2015). For the CNG bus application type, all studies (including this study) have similar positive results (Beer et al 2002;Ercan and Tatari 2015;Fang 2009;Wang 2015;Xu et al 2015). For the CNG PV application type, the studies specific to China (including this study) have similar NGRR figures, but they have a more optimistic result than that found for (Curran et al 2014;Fang 2009;Wang 2015).…”

Section: Comparison Of the Results With Those Of Other Studiesmentioning

confidence: 53%

See 1 more Smart Citation

Petroleum substitution, greenhouse gas emissions reduction and environmental benefits from the development of natural gas vehicles in China

et al. 2018

View full text Add to dashboard Cite

This study develops a bottom-up model to quantitatively assess the comprehensive effects of replacing traditional petroleum-powered vehicles with natural gas vehicles (NGVs) in China based on an investigation of the direct energy consumption and critical air pollutant (CAP) emission intensity, life-cycle energy use and greenhouse gas (GHG) emission intensity of NGV fleets. The results indicate that, on average, there are no net energy savings from replacing a traditional fuel vehicle with an NGV. Interestingly, an NGV results in significant reductions in direct CAP and life-cycle GHG emissions compared to those of a traditional fuel vehicle, ranging from 61% to 76% and 12% to 29%, respectively. Due to the increasing use of natural gas as a vehicle fuel in China (i.e. approximately 28.2 billion cubic metres of natural gas in 2015), the total petroleum substituted with natural gas was approximately 23.8 million tonnes (Mt), which generated a GHG emission reduction of 16.9 Mt of CO 2 equivalent and a CAP emission reduction of 1.8 Mt in 2015. Given the significant contribution of NGVs, growing the NGV population in 2020 will further increase the petroleum substitution benefits and CAP and GHG emission reduction benefits by approximately 42.5 Mt of petroleum-based fuel, 3.1 Mt of CAPs and 28.0 Mt of GHGs. By 2030, these benefits will reach 81.5 Mt of traditional petroleum fuel, 5.6 Mt of CAPs and 50.5 Mt of GHGs, respectively.

show abstract

Section: Comparison Of the Results With Those Of Other Studiesmentioning

confidence: 53%

“…Numerous studies have been conducted to investigate the fuel consumption and GHG emissions of alternative vehicle technologies from the life-cycle perspective (Ou et al 2012;Xu et al 2015). However, the number of published LCA studies on vehicles using alternative fuels such as NG is relatively small.…”

Section: Introductionmentioning

confidence: 99%

Petroleum substitution, greenhouse gas emissions reduction and environmental benefits from the development of natural gas vehicles in China

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Looking at existing international literature, Xu et al (2015) discuss the factors influencing decisions on bus technologies and fuels, and conclude that the optimal combination of technology and fuel for minimizing emissions depends on the location in relation to complex factors such as weather, terrain and duty cycle. Energy efficiency in buses is discussed by de Abreu e Silva et al (2015), where factors affecting the energy efficiency in buses operating in Lisbon are explored using regression models.…”

Section: Literature Review and Analytical Approachmentioning

confidence: 99%

On the road to fossil-free public transport: The case of Swedish bus fleets

Xylia

Silveira

2017

Energy Policy

View full text Add to dashboard Cite

Public transport is important for Sweden to acquire a fossil-fuel independent vehicle fleet by 2030. The aim of this paper is to assess the status of Swedish public bus fleets towards decarbonization, and explore factors affecting regional performance variations and fuel choices. Environmental performance indicators such as renewable fuel shares, CO 2 emissions, and energy efficiency are analyzed nationally and regionally. Fuel preferences and best practices are investigated through a survey and interviews with experts working with strategic planning at Public Transport Authorities. Almost 60% of the bus transport volume ran on renewables in 2014 compared to 8% in 2007, but regional variations are significant, partly due to factors such as driving conditions, bus and fuel types, typical trip lengths, and climatic conditions. However, there is no strong correlation between population densities or bus transport volume and the share of renewables achieved. This places political will, strategic planning and policies to promote public transport as key factors affecting renewable fuel deployment. Environmental factors are a priority when choosing fuels, while barriers to renewable fuels are mainly economic and political. Meanwhile, despite the overall progress, achievements in energy efficiency improvement are falling short in comparison to emissions reduction and adoption of renewable fuels, thus requiring further attention.  Electricity is likely to receive increased attention according to expert survey. Highlights

show abstract

“…Xu et al [28] The environmental emission performance of various alternative fuel options for transit buses in different U.S. cities under different operational conditions is investigated.…”

Section: Lca Studiesmentioning

confidence: 99%

On the Front Lines of a Sustainable Transportation Fleet: Applications of Vehicle-to-Grid Technology for Transit and School Buses

et al. 2016

View full text Add to dashboard Cite

Abstract:The electricity generation/supply and transportation sectors are the two largest contributors to greenhouse gas (GHG) emissions in the U.S., and vehicle-to-grid (V2G) technology is a rapidly emerging solution to reduce these emissions with the adoption of battery-electric (BE) vehicles. Deployments of BE transit and school buses are expected to have larger battery capacities than passenger vehicles, making them more feasible candidates for V2G service. Five electricity generation regions are considered for cash flow analysis of BE and diesel transit and school buses over their entire respective lifetimes with the allowance of V2G services' net revenue. Besides, the environmental benefits of using the V2G system are studied in place of combustion power generation plants for the regulation services of each study region. Air emission externalities are another crucial issue for bus operations because buses are operated near highly populated areas, so these externalities are also studied in this research with the benefits of a V2G emission reduction potential taken into account. The analysis concluded that BE transit and school buses with V2G application have potential to reduce electricity generation related greenhouse-gas emissions by 1067 and 1420 tons of CO 2 equivalence (average), and eliminate $13,000 and $18,300 air pollution externalities (average), respectively.

show abstract

Assessment of alternative fuel and powertrain transit bus options using real-world operations data: Life-cycle fuel and emissions modeling

Cited by 97 publications

References 31 publications

Petroleum substitution, greenhouse gas emissions reduction and environmental benefits from the development of natural gas vehicles in China

Petroleum substitution, greenhouse gas emissions reduction and environmental benefits from the development of natural gas vehicles in China

On the road to fossil-free public transport: The case of Swedish bus fleets

On the Front Lines of a Sustainable Transportation Fleet: Applications of Vehicle-to-Grid Technology for Transit and School Buses

Contact Info

Product

Resources

About