Informatics Publishing Limited

Vinod R ¹, N. R. Banapurmath ², Basavarajappa Y.H. ³, P.A. Harari ⁴, Varunkumar Reddy N ¹

Affiliations
1 School of Mechanical Engineering, REVA University, Bangalore 560064, IN
2 Department of Mechanical Engineering, K.L.E. Institute of Technology, Hubballi 580027, Karnataka, IN
3 Department of Mechanical Engineering, P.E.S. Institute of Technology and Management, Shimoga 577204, IN
4 Department of Mechanical Engineering, SDM College of Engineering and Technology, Dharwad, IN

Abstract

In the present study an experimental work has been conducted to characterize the fish oil biodiesel and their blends with diesel and Pyrogallol antioxidant respectively. Fish oil biodiesel (FHOBD) is blended with diesel to produce FHOBD B20. Further to study the effect of antioxidant addition to FHOBD B20, three blends with varied dosage of pyrogallol are prepared. Accordingly, FHOBD B20 is infused with 1, 2, and 3 grams of pyrogallol antioxidant per liter to produce FHOBD B20PG1, FHOBD B20PG2 and FHOBD B20PG3 respectively. Beyond 3 gm deterioration in the blend homogeneity is observed. For the CRDI engine performance evaluation only FHOBD B20PG3 is considered. Advancing the injection timing to 17^o BTDC resulted into improved CRDI engine performance powered with fish oil biodiesel. Further adding Pyrogallol antioxidant into FHOBD B20 blends higher BTE, lower emissions of smoke, HC and CO emissions were obtained for the CRDI engine respectively.

Keywords

Fish oil biodiesel, pyrogallol, antioxidant, CRDI, injection timing.

Full Text

     

Basavarajappa Y H ¹, Darshan S.P ¹, Vinod R ², N R Banapurmath ³

Affiliations
1 Department of Mechanical Engineering, PES Institute of Technology and Management, Shimoga 577201, IN
2 School of Mechanical Engineering, REVA University, Bangalore 560064, IN
3 Department of Mechanical Engineering, K.L.E. Institute of Technology, Hubballi 580027, Karnataka, IN

Abstract

Nowaday’s use of biofuels for both power generation and automobiles is more relevant because of the need for energy security, environmental concerns, foreign exchange savings and socio-economic issues. Non-edible oils are considered as second generation alternative fuels and use of these oils avoids conflict between food and energy security. Therefore various locally available vegetable oils of edible and nonedible nature were selected for their biodiesel production. Subsequent characterization of these biodiesels was carried out to ensure their suitability as alternative fuels in diesel engines. Subsequently characterization of both raw vegetable oils and their respective biodiesels was done according to ASTM standards. The experimental investigation also suggests that the fuel processing with conventional transesterification method is a laborious and time consuming one. On the other hand microwave assisted transesterification (MATM) is found to be better in terms of shorter reaction time, lower consumption of power and resources compared to conventional transesterification process. MATM method reduces the reaction time drastically for both edible and non-edible oils. For edible oils the reaction time is found to be 1 minute while for nonedible oils it varies from 3 to 6 minutes. The biodiesel production from pressure reactor uses same resources required by the conventional transesterification method [CTM], but it is conducted in a closed vessel. This feature enhances the chemical kinetics, thereby reducing the reaction time up to 66% compared to conventional method

Keywords

Biodiesel, non-edible oil, microwave assisted transesterification, pressure reactor, oxidation stability.

Full Text

     

Varun kumar Reddy N ¹, SG Sangashetty ¹, NR Banapurmath Math ¹, Arun Kumar H ¹, Vinod R ¹

Affiliations
1 Department of Mechanical Engineering REVA University, Bangalore., IN

Abstract

With the rise in fossil fuel consumption rate, depletion in reserves and stringent pollution norms resulted in search of renewable and carbon neutral fuel. Ethanol is one such fuel that can be obtained from various feedstock’s including grains and green matter with high starch and sugar content such as corn, sugar cane and sugar beets. Even castor oil methyl esters which is non-edible in nature also fulfils the requirement of fuel for internal combustion engine. The traditional experimental scheme requires more time for optimization and extensive experiments need to perform as it is possible to vary only one parameter at a time. This also result in increase in cost and it doesn’t provide interactive effect among the chosen variables. Mathematical models of Taguchi method using design of experiments (DOE) provide good results. By using DOE, Taguchi L27 orthogonal array is considered. Analysis of variance (ANOVA), Regression Equation and signal-to-noise (S/ N) ratio are obtained to predict the optimal parameters and to evaluate the influence of significant conditions on performance, emission and combustion characteristics. It is observed from the experiments that ethanol blend percentage and EGR influences on the output parameters.

Keywords

Performance, S/N ratio, ANOVA, Biodiesel.

Full Text