Emission evaluation on 3-hole and 4-hole nozzle diesel engine with Jatropha and Pongamia (Karanja) mixed bio oil

Abstract

The present study aims in developing an alternative energy solution for compression ignition engine with mixed bio oils from Jatropha and Pongamia (Karanja) vegetable. The high viscosity of the oil was reduced by preheating and transesterification process. The properties of the oil namely viscosity, density, calorific value and flash point were evaluated. The exhaust emissions of a single cylinder diesel engine were examined using 3 hole (3H) and 4 hole (4H) nozzle with 80:20 diesel and biodiesel ratio. The 3H nozzle exhibits the optimum emission levels as per the Indian norms. At no load condition, both 3H and 4H have the emission with same NO X composition while 4H produces more CO 2 and least CO and HC. As the load increases the NO X gases emission increases wherein 4H produces more NO X gas than 3H nozzle. CO gas stabilized to 0.01% from the load of 2 kg itself for 4H whilst the 3H nozzle stabilized on 8 kg.

Experimental investigation on performance, smoke and exhaust gas analysis of four stroke diesel engine using pongomia/neem oil biodiesel

“…Author observed that, blend of 40% multi functional fuel additives exhibits minimal power drop and reduced emissions. Nagaraj et al (2019) conducted a study on Jatropa and Pongomia bio fuel in diesel engines with 3 and 4 hole nozzle diesel engines. Author conducted a study for 80:20 diesel and bio diesel ratio.…”