Experimental investigations on the performance and emissions characteristics of dual biodiesel blends on a varying compression ratio diesel engine

Abstract

The present work discusses the performance and emissions characterization of dual biodiesel sample blends on a varying compression ratio diesel engine. The dual biodiesel blends were obtained by blending two biodiesels (Mahua and Jatropha) in equal proportions volume (1:1, v/v) with mineral diesel. The sample blends were obtained on a ‘percentage by volume’ basis and named B10, B20, B30, and B40 (B10 was a blend of 5% each biodiesel with 90% mineral diesel and similarly for all other sample blends). All the experiments were performed at a constant engine speed of 1500 rpm, 50% loading conditions (2.6 kW), and varying compression ratios of 13.5:1, 14.5:1, 15.5:1, and 16.5:1. The results revealed that the sample blends had slightly higher brake power and mechanical efficiency with sample blends B10 to B40 had (0.15–1.58%) higher brake power and (1.07–12.42%) higher mechanical efficiency as compared to mineral diesel at a compression ratio of 16.5:1. The In-cylinder peak pressure and exhaust gas temperature were observed to be lower than mineral diesel for the sample blends B10 to B40 by 0.15–0.36 bar and 11.1–69.8 ℃, respectively. Also, the emissions of carbon monoxide and hydrocarbons were lower by 33–62%, respectively, for the sample with the highest blend percentage. However, the carbon dioxide emissions were found to be higher by 42.85% than mineral diesel. From the overall performance and characterization, it is concluded that B20 had optimum properties and blend percentage to be a better substitute fuel for mineral diesel among all the tested samples.

Preparation of biodiesel and experimental investigation of biodiesel blends on diesel engine at varying speed.

“…The glycerine is 80-88 percent pure and suitable for sale after the water and alcohol are removed. In more advanced processes, it's distilled to 99 percent purity or greater, then sold to the cosmetic and pharmaceutical industries [10,32].…”

“…We've discovered that using 15 to 20% methanol works best based on the total weight of oil. [10,32] 1. It's important that you have both oils, waste fry oil and jatropha oil, ready.…”

“…The rapid depletion of oil reserves, need of energy and growing concern over significant environmental issues have compelled academics and scientists around the world to seek out a sustainable non-petroleum fuel source. Vegetable oils, which are derived from renewable sources, have been found by many researchers to be suitable substitute fuels [10]. Vegetable oils, on the other hand, emit significantly fewer hazardous emissions than regular diesel.…”

Study on Compression Ratio Optimization of M100 Methanol Engine

“…In the study of Ravikumar & Antony [1], Chakraborty et al [2], Zhao et al [3], Gülüm [4], Suresh et al [5], Mohammed et al [6], and Pradeep & Porpatham [7],Mahmood Abdulrahman Shakir [8], Dugala Navdeep Sharma [9],Wathakit Khatha [10]various fuels were utilized to investigate how compression ratio impacts engine performance, including n-butanol, biodiesel, gasoline, natural gas, and others. It has been discovered that increasing the compression ratio to a certain extent yields positive results.…”

Multi-response and multi-criteria decision-making optimization of transesterification reaction for biodiesel production based on critic weight determination method

“…Kumar et al 19 reviewed the effect of the fatty acid composition on the physicochemical properties of biodiesel produced from the mixed oil feedstocks. Dugala et al 20 studied the performance and emission characteristics of biodiesel produced from mahua and Jatropha oil in equal proportions volume (1:1, v/v). The literature also reports that 21 biodiesel yield and quality of fuel can also be achieved by mixing different feedstocks.…”