Dual-fuel Engines — An Elegant Alternative for Tier 4f Compliance
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Manufacturers are adding emissions aftertreatment technology to large off-road vehicles to meet the U.S. Environmental Protection Agency’s Tier 4 Final emissions standards. However, these systems introduce additional operating costs, control complexity, packaging difficulties, and maintenance concerns. Southwest Research Institute investigated whether converting to dual-fuel operation could allow these engines to meet the stricter standards, reducing or eliminating the need for emission aftertreatment while cutting product and operating costs.
- Environmental Protection Agency: Control of Emissions from New and In-use Nonroad Compression-ignition Engines. 40 CFR 1039.101Google Scholar
- Environmental Protection Agency: Control of Emissions from New and In-use Nonroad Compression-ignition Engines. 40 CFR 1039.625Google Scholar
- U.S. Energy Information Administration: Annual Energy Outlook 2017. Published 2017Google Scholar
- Roecker, R. et al.: State-Based Diesel Fueling for Improved Transient Response in a Dual-Fuel-Engine. CIMAC paper No. 161, CIMAC Congress, Helsinki, 2016Google Scholar
- Environmental Protection Agency: Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles — Phase 2. 81 Fed. Reg. 73478 (October 25, 2016)Google Scholar