Testing Altitude Effects on Locomotive Emissions

The Environmental Protection Agency (EPA) has regulated that locomotives must comply with emissions regulations from sea level up to 2133 meters (7000 feet) altitude. GE Rail has assembled a mobile emissions test laboratory that can be taken by rail to desired testing locations of varying altitude anywhere in North America. This paper gives an overview of the mobile test laboratory’s make up and locomotive preparation for test. Testing was conducted as part of GE Rail’s development of 21^st Century Locomotive. The paper presents test results of altitude effects on GE’s Evolution Series Locomotive including regulated emissions and engine performance. The Evolution Series Locomotive meets EPA Tier 2 locomotive emissions regulations applicable to new locomotives manufactured after January 1, 2005.