Simulation of 2-Stroke D-Cycle Engine Concept for Agricultural Tractor
2022-01-0464
03/29/2022
- Event
- Content
- This paper explains to modify conventional 4-Stroke 2.7L 4-Cylinder CRS (Common Rail System) Naturally aspirated (NA) Diesel engine into 2-Stroke D-Cycle (i.e. Differential Stroke) engine for Agricultural Tractor applications. 1D Performance simulation was performed using GT-POWER to focus on how to maximize the combustion efficiency and power/torque demand using a 2-stroke D-Cycle by taking advantages of deficits in a 4-stroke engine, optimizing for improving emissions and realizing higher torque demands for Tractor field applications. Furthermore, appropriate cam geometries ensuing specific application of puddling, tillage etc. are generated which can be accommodated without major design changes. Exhaust, heat transfer, pumping, frictional losses, and volumetric efficiency are analyzed. Performance Simulation results shows that Fuel economy improvement of ~ 10%, average increase in Power output of ~ 30%, average NOx emission reduction of ~ 15% and better drivability at low engine speeds compared to Turbocharged (TC) engines was observed. Hence, turbocharger can be eliminated by using D-Cycle concept.
- Citation
- S, S., and Paulraj, L., "Simulation of 2-Stroke D-Cycle Engine Concept for Agricultural Tractor," SAE Technical Paper 2022-01-0464, 2022, .