Improvement of engine emissions with conventional diesel fuel and diesel-biodiesel blends.
In this report combustion and exhaust emissions with neat diesel fuel and diesel-biodiesel blends have been investigated. In the investigation, firstly biodiesel from non-edible neem oil has been made by esterification. Biodiesel fuel (BDF) is chemically known as mono-alkyl fatty acid ester. It is renewable in nature and is derived from plant oils including vegetable oils. BDF is non-toxic, biodegradable, recycled resource and essentially free from sulfur and carcinogenic benzene. In the second phase of this investigation, experiment has been conducted with neat diesel fuel and diesel-biodiesel blends in a four stroke naturally aspirated (NA) direct injection (DI) diesel engine. Compared with conventional diesel fuel, diesel-biodiesel blends showed lower carbon monoxide (CO), and smoke emissions but higher oxides of nitrogen (NOx) emission. However, compared with the diesel fuel, NOx emission with diesel-biodiesel blends was slightly reduced when EGR was applied.
Nabi
Md Nurun
MN
Department of Mechanical Engineering, Rajshahi University of Engineering and Technology, Rajshahi 6204, Bangladesh. nahin1234@yahoo.com
Akhter
Md Shamim
MS
Zaglul Shahadat
Mhia Md
MM
D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D000397:Air Pollution / Q000517:prevention & control*; D004784:Environmental Monitoring; D005648:Fuel Oils; D005989:Glycerides / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D013729:Terpenes / Q000737:chemistry; D001335:Vehicle Emissions / Q000032:analysis*
D000393:Air Pollutants; D005648:Fuel Oils; D005989:Glycerides; D010938:Plant Oils; D013729:Terpenes; D001335:Vehicle Emissions; C002443:neem oil