The potential effect of future energy-efficiency and emissions-improving technologies on fuel consumption of heavy trucks.

Abstract

Researchers at Argonne National Laboratory analyzed heavy-duty truck technologies to support the Energy Information Administration's long-term energy use projections. Researchers conducted an analysis of several technology options that have potential to improve heavy truck fuel economy and emissions characteristics. The technologies are grouped as fuel-economy-enhancing and emissions-improving. Each technology's potential impact on heavy truck fuel economy has been estimated, as has the cost of implementation. The extent of technology penetration is estimated on the basis of truck data analyses and technical judgment. * Under high-technology case, this technology will penetrate sooner. ** Half of the fuel economy gains would be under the high-technology case. ***Contingent on development of practical on-board air separation system and significant lag in fuel sulfur phasedown. This option selected in preference to "lean-NOx" catalysts, the development of which is still plagued by high fuel penalties and low efficiency.

Waste-to-wheel analysis of anaerobic-digestion-based renewable natural gas pathways with the GREET model.

“…The 2002 Vehicle Inventory and Use Survey conducted by the U.S. Census Bureau (2002) reports that class 7-8 diesel trucks achieve 5.92 mpgde (miles per gallon diesel equivalent) in regional service while on-road driving data from manufacturers suggest a value of 6.2 mpgde for longhaul heavy-duty diesel trucks. (Vyas et al, 2002). By contrast, recent EPA and NHTSA estimates, using a vehicle simulation model for their regulation impact analysis of Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium-and Heavy-Duty Engines and Vehicles (2011), report a value of 4.95 mpgde.…”

Energy efficiency technologies for road vehicles

“…CD reductions of 50% and higher, coupled with potential benefits in safety (from better braking and roll and stability control), may be possible with pneumatic (air blowing) devices. A complete package of aerodynamic improvements for a heavy-duty truck, including pneumatic blowing, might save about 15-20% of fuel for trucks operating primarily on uncongested highways, at a cost of about US $5,000 in the near-term, with substantial cost reductions possible over time (Vyas et al 2002).…”

The Prospects for Natural Gas as a Transportation Fuel in Europe

“…Source Vyas et al (2002) This pattern of market penetration seems particularly likely in the case of natural gas as it also reflects the potential way in which momentum would build as more vehicle types become available and the refuelling infrastructure is more extensive. The key questions are of course what will the ultimate penetration be and over what timescale will it be achieved?…”

“…The key questions are of course what will the ultimate penetration be and over what timescale will it be achieved? 134 Vyas et al (2002) 135 See Batterbee and Lidstone (2013) …”