Performance, Emission and Cylinder Vibration studies of DI-Diesel Engine with COME-Triacetin Additive Blends

Author : P. Venkateswara Rao , B. V. Appa Rao

Abstract

Triacetin [C9H14O6] is the anti-knocking additive used along with the bio-diesel in DI- diesel engine. Knocking to some extent can be detected with the usage of diesel fuel and neat bio-diesel. The usage of T- additive suppressed knocking, improved the performance and reduced tail pipe emissions. Comparative study is conducted using petro-diesel, bio-diesel, and with various additive blends of bio-diesel on DI- diesel engine. Coconut oil methyl ester (COME) is used with additive triacetin (T) at various percentages by volume for all loads (No load, 25%, 50%, 75% and full load). The performance of engine is compared with neat diesel in respect of engine efficiency, exhaust emissions and combustion knock. Of the five Triacetin- biodiesel blends tried, 10% Triacetin combination with biodiesel proved encouraging in all respects of performance of the engine.

Keywords: Performance, Biodiesel, Exhaust emissions, Additive, Triacetin, COME