Search

This study is aimed at reducing NOx, Smoke, HC, CO emissions from single-cylinder, four-stroke, and water cooled diesel engine. The research engine is fueled with diesel and two blends of butanol and diesel at atmospheric conditions. Neat diesel is termed as D100, 10%, and 20% Volume of butanol dispersed in D100 is termed as D90B10 and D80B20 respectively. The chemical and physical properties of D100, D90B10 and D80B20 fall within the limits of ASTM standards. Results revealed that enhanced chemical properties and higher latent heat of vaporization of butanol lowered the CO, HC, smoke, and NOX emissions of diesel fueled research diesel engine. [ABSTRACT FROM AUTHOR]

This study examines the effect of concentration and flow-rate of CeO2 nano-fluid to reduce smoke emissions from a diesel engine. Taguchi-Grey relational-based multi-response optimization method was employed for test-plan. Results revealed that nano-fluid flow-rate and its concentration have a positive impact on smoke emissions reduction in a diesel engine. It is confirmed that the results obtained in the experimentations are in line with the calculated values obtained Taguchi technique. The usage of nano-fluid in the tailpipe is an effective way of reducing Smoke emissions from a diesel engine. [ABSTRACT FROM AUTHOR]

This study examines the prospect of utilizing biodiesel from non-edible, waste seed derived from grapefruit. The prepared biodiesel was intended to replace the diesel fuel in a research diesel engine. Two antioxidants namely BHA (Butylated Hydroxyanisole) and BHT (Butylated Hydroxytoluene) are partially blended to enhance the ignition patterns of diesel/biodiesel blends. 30% volume of grape-seed biodiesel (BD) is blended with 70% volume of diesel and identified as base fuel. 10% volume of two antioxidants is equally blended to base fuel to enhance its physic-chemical properties. Upon blending the antioxidants, no change in phase was observed for base fuel. Performance results found that BHA and BHT addition lowered 1.2–1.4% of BSFC, and improved 0.7–1.1% of BTE of diesel/biodiesel blends respectively. Besides, BHA and BHT inclusion improved the physio-chemical properties of diesel/biodiesel blends and produced a prominent increase in In-Cylinder Pressure (ICP) and heat release rate (HRR). Emissions results revealed that BHA and BHT addition lowered 1.8–2.1%% of CO, 2.2–2.6% of HC of diesel/biodiesel blends. Further, a higher cetane number of BHA and BHT improved the combustion and lowered smoke (2.9–3.4%) and NO (1.9–3.7%) emission for diesel/biodiesel blends. [ABSTRACT FROM AUTHOR]