Life cycle emissions and cost of transportation systems: case study on diesel and natural gas for light duty trucks in municipal fleet operations

Download
  1. Get@NRC: Life cycle emissions and cost of transportation systems: case study on diesel and natural gas for light duty trucks in municipal fleet operations (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.jngse.2015.03.009
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Natural Gas Science and Engineering
ISSN1875-5100
Volume24
Pages2634
Subjectlight duty commercial vehicle; LCA; CNG; natural gas; diesel
AbstractThe green economy mandate seeks to reduce transportation emissions by replacing traditional fossil fuels with alternative low-carbon fuels. The present article provides a comparative “cradle-to-grave” life cycle assessment (LCA) of light duty commercial vehicles (LDCVs) powered by compressed natural gas (CNG) and diesel. The LCA scope is based on conditions for municipal vehicle fleet operation in a semi-urban Canadian city, suitable for adoption of alternative fuels such as CNG. An in-house application is developed to conduct the LCA with a combination of real-time vehicle fleet data and Natural Resources Canada's GHGenius as the inventory database. The results indicate that the net energy consumed is comparable for both fuels. Mixed results are obtained for criteria air contaminant (CAC) emissions, indicating the need for exhaust treatment for both vehicles. More importantly, a 34% reduction of GHG emissions is predicted by replacing the diesel vehicles with CNG vehicles. The analysis of fugitive methane emissions caused by newly developed hydraulic fracturing methods shows that CNG vehicles are still favorable. The lifetime fuel cost can also be reduced by about $30,000 per vehicle by switching to CNG. Therefore, fleet operators and policy developers are recommended to consider adoption of CNG-powered LDCVs.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationEnergy, Mining and Environment; National Research Council Canada
Peer reviewedYes
NPARC number23001549
Export citationExport as RIS
Report a correctionReport a correction
Record identifiera8188379-8161-4a38-8dd8-0ac75fc61e79
Record created2017-03-06
Record modified2017-03-06
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)