Overview
The purpose of this study is to better understand emissions and performance effects from renewable diesel, biodiesel, and potentially CNG relative to CARB ULSD. CARB proposes to conduct emissions testing on various biodiesel and renewable diesel blends and potentially CNG on a variety of heavy-duty on-road and off-road engines and locomotives, with and without SCR exhaust treatment and diesel particulate filters (DPF) using both engine and chassis dynamometers. This contract would focus on engine dynamometer measurements, and would coordinate with CARB laboratories to engage in similar studies focused on chassis dynamometer measurements. As part of this study, CARB also proposes to conduct performance testing to measure changes in torque, power, and fuel economy.
Lead Researcher: Dr. Thomas Durbin Co-researchers: Dr. Georgios Karavalakis, Dr. Kent Johnson