Performance, Efficiency, and NO_x Emissions of a Compact Diesel Tractor Fueled with D2, B20, and B100 under Steady-State Loads

摘要

This study compared pto power performance, fuel efficiency, and NO_x emissions of a 23.9 k)/V compact utility tractor fueled with No. 2 petroleum diesel (D2), a 20% biodiesel blend (B20), and neat biodiesel (B100) under two load conditions. Three steady-state (1h) tests were conducted with each fuel at both rated pto speed (540 rpm) and at peak torque (18 total tests). At rated pto speed, there were significant (p<.05) differences between the fuels for pto torque and power (D2>B20>B100) and pto specific fuel consumption (D2=B20B 100) and for pto specific fuel consumption, thermal efficiency, and NO_x emissions (D2-B20