Performance and Emissions of a Modern Small DI Diesel Engine Fueled by Diesel-Biodiesel-Iso-Butanol Blends with EGR
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 5
Abstract
Iso-butanol is one of the next-generation biofuels that has the ability to help alleviate the energy crisis and environmental problems. The prime objective of this work is to experimentally investigate the performance and emissions of a modern light-duty diesel engine fueled by diesel-biodiesel-iso-butanol blends, and to compare the results to those of petroleum diesel. Biodiesel that varied between0% (pure diesel) and90%, as well as 10% isobutanol, was examined. The engine speeds selected for the operation were low speed (1000 rpm), high torque speed (2100 rpm) and high power speed (3000 rpm). At each engine speed, three loads were tested: low (≈20%), medium (≈50%), and high (≈80%).In addition, the exhaust gas recirculation (EGR) was used to investigate its effect on the performance and emissions of the fuel blends. An EGR, up to 15% was attempted. Engine performance (brake-specific energy consumption and brake thermal efficiency) and regulated emissions: carbon monoxide (CO), hydrocarbon (HC), oxides of nitrogen (NOx), and smoke emission were investigated. The results show that the addition of 10% iso-butanol to blends of diesel and biodiesel increased brake thermal efficiency. There was a significant reduction of regulated emissions (NOx, HC and CO) with an increase of the proportion of biodiesel. The addition of the EGR method delivered a similar effect, which increased brake thermal efficiency and reduced emissions.
Authors and Affiliations
Mohammed Mustafa Badri, Dr. Murari Mohon Roy, Sogeesh M Raman
Keywords
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