The Use of a Single-Cylinder, Medium-Speed Diesel Research Engine for Railway Diesel Fuel Additive Evaluations

This paper focuses on discussions on why and how to use a test facility, which is centered around a single-cylinder four-stroke medium-speed diesel research engine, for conducting railway diesel fuel additive evaluations. By using the facility, repeated evaluation runs for a fuel additive were carried out. Results from the runs show similar trends on brake specific fuel consumption (BSFC) and emissions changes. In addition, they appear to agree well with those reported from RP-503 test for the same fuel additive. The test facility and procedure proved to be efficient and cost-effective for the evaluations.