Influence of cobalt chromium nanoparticles in homogeneous charge compression ignition engine operated with citronella oil

Stringent emission standards and greater fuel economy have forced scientists to develop an advanced combustion technology (homogeneous charge compression ignition; HCCI) useful in internal engines the future. Citronella biodiesel prepared through transesterification process which is auspicious energy source for CI engine. Cobalt chromium nanoparticles were mixed with at 30 ppm help of ultrasonicator. The present experimental investigation was conducted analyze various performance (brake thermal efficiency (BTE) brake-specific consumption (BSFC)), (pressure heat release rate (HRR)), (unburnt hydrocarbon (UBHC), CO, NOx, smoke) parameters HCCI engine neat diesel, CBD 5% (citronella + 95% diesel), 10% 90% 15% 85% 20% 80% C30 diesel +30 cobalt). To carry out experiment, a vaporizer adopted 5.2 kW, 1500 rpm, single-cylinder, four-stroke, vertical, direct-injection Nanoparticles used improve surface area/volume ratio, conduction, transfer within oil layers. result showed that had given better results than other citronella biodiesel-blended fuels. increased BTE HRR by 5.49% 6.8%, respectively, due shorter ignition delay cetane number fuel. percentage BSFC, UBHC, smoke decreased 33.33%, 34.32%, 5.1%, 17.34%, compared load.