CI engine performance and emissions with waste cooking oil biodiesel boosted with hydrogen supplement under different load and engine parameters

This research article deals with the variable parametric study on dual fuel compression ignition engine fueled with waste cooking oil biodiesel with hydrogen supplement at atmospheric condition. The parametric study include variation in engine speed (18–30 rev/sec), gaseous fuel flow rate (0–18.4LPM), pilot fuel flow rate (9.92–15.79Mlpm) and ignition timing (20–45° BTDC). The experiment was conducted on a four stroke, 0.5-liter single cylinder E6 Ricardo engine. From the experimentation, overall parametric variation of 4.15%, 64.7%, 76.61% and 57% in thermal efficiency, CO, NO_X and opacity respectively was observed. However, with increase of hydrogen content resulted in increased engine performance, increased in NOx emission and reduction in CO emission with same WCO biodiesel flow rate.