While at the University of Kansas, Duncan worked in a multidisciplinary group consisting of chemical, mechanical and environmental engineers as part of the Feedstock to Tailpipe initiative. The initiative investigated growth conditions, fuel production methods, fuel properties, engine performance and emissions testing for multiple feedstocks. Duncan produced and analyzed renewable diesel fuels, with the majority of his dissertation research focused on high-pressure (131 MPa) viscosity experimentation, modeling and physical property prediction.
