Abstract
The burgeoning demand and use of diesel engines in various fields cause emission of exhaust gases like NOx and CO that lead to serious environmental pollution and hazards like global warming, respiratory problems, and so on, has necessitated a reduction in the use of diesel and addition of suitable biodiesel. Mahua biodiesel blend has also been considered as a safe renewable fuel for conventional engines. This is due to its desirable properties such as rapid growth rate, higher productivity, and the ability to utilize CO2 into fuel. The introduction of an antioxidant, preferably n-butanol eliminates these harmful emissions from the diesel engine. In this experimental investigation, mahua biodiesel blend mixed with n-butanol has been used as test fuel in a conventional engine. Because of the special character n-butanol has been chosen for use with the mahua biodiesel blend. About 20–30 vol.% of n-butanol has been blended with 80 vol.% of diesel and tested. The manufacturer set injection timing was 23oCA bTDC. The injection timing is preferably between 21oCA bTDC and 25oCA bTDC. Nitrogen oxides and carbon monoxide are reduced by 49 percent and 5.88 percent, respectively, when a blend of B20 + D80 + 30% n-butanol is used at 21oCA bTDC relative to diesel fuel. The smoke and hydrocarbon emission of blend B20 + D80 + 30% n-butanol at 25oCA bTDC is reduced by 40% and 38.07%, respectively, related to diesel. The brake thermal efficiency for entire injection timing has been identified to be increased correlated to all other test blends. The brake thermal efficiency in blend B20 + D80 + 30% n-butanol of 25oCA bTDC is increased by 15.30%, when compared with diesel fuel. These promising results assure that mahua biodiesel blend containing antioxidant would be eco-friendly fuel.
Highlights
Experts are scrambling to find suitable replacement energy options, which have grown in importance due to rising energy needs and pollution. [1]
Nitrogen oxides and carbon monoxide are reduced by 49 percent and 5.88 percent, respectively, when a blend of B20 + D80 + 30% nbutanol is used at 21oCA bTDC relative to diesel fuel
The smoke and hydrocarbon emission of blend B20 + D80 + 30% n-butanol at 25oCA bTDC is reduced by 40% and 38.07%, respectively, related to diesel
Summary
Experts are scrambling to find suitable replacement energy options, which have grown in importance due to rising energy needs and pollution. [1]. The blend B20 with BHA showed decreased emission of CO and smoke opacity by 18.39% and 32.43%, respectively, when correlated with neat base fuel mainly due to the oxygen availability and due to increase in the C–C bond. When the injection timing was increased, the emission of HC and CO in the blend B30 was decreased by 46.15% and 15.9%, respectively, when compared with other test fuels.
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