GE Transportation's New Tier 4 Rail Engine
GE Transportation has unveiled the prototype for its next Evolution Series Locomotive. GE expects that the locomotive will be the first in the industry to meet the U.S. EPA’s stringent Tier 4 emission standards, which call for the single-largest emission reduction in the tiered program’s timeline. Effective in 2015, the EPA will require manufacturers of locomotive diesel engines to lower particulate emissions 70% and NOx 76%, compared to engines first introduced in 2005.
Reportedly, GE's Tier 4 approach manages the temperature of the engine where it reaches a level hot enough to limit the amount of NOx produced, but not so hot as to cause a significant increase in the in production of carbon dioxide. “Alternative solutions would likely rely on the use of a Urea exhaust additive to meet these Tier 4 emission standards, requiring railroads to build an extensive network of fueling stations across North America,” GE said.
GE Transportation plans to build its Tier 4 Evolution Series locomotives at one or both of its U.S. locomotive manufacturing sites in Erie, Pa. and Fort Worth, Tex. GE will produce its Tier 4 compliant diesel engines at its manufacturing plant in Grove City, Pa.