Combined effect of injection timing and combustion chamber geometry on the performance of a biodiesel fueled diesel engine

▸ Investigates the effect of injection timing and combustion chamber design for biodiesel operation. ▸ Tests were carried out using 20% Pongamia biodiesel blend with diesel and diesel. ▸ Toroidal Re-entrant (TRCC) and Hemispherical combustion chambers (HCC) were used. ▸ Tests were carried out at different injection timings of 20°, 21°, 22°, 23° and 24° bTDC. ▸ TRCC has shown improved performance and emission characteristics at 21° bTDC.