The effect of nickel oxide nano‐additives in Azadirachta indica biodiesel‐diesel blend on engine performance and emission characteristics by varying compression ratio

Author(s):  
Srinidhi Campli ◽  
Madhusudhan Acharya ◽  
Shylesh V. Channapattana ◽  
Abhay A. Pawar ◽  
Shivaji V. Gawali ◽  
...  
2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Rajneesh Kumar ◽  
Anoop Kumar Dixit

Engine performance and emission characteristics of unmodified biodiesel fueled diesel engines are highly influenced by their ignition and combustion behavior. In this study, emission and combustion characteristics were studied when the engine operated using the different blends (B10, B20, B30, and B40) and normal diesel fuel (B0) as well as when varying the compression ratio from 16.5 : 1 to 17.5 : 1 to 18.5 : 1. The change of compression ratio from 16.5 : 1 to 18.5 : 1 resulted in 27.1%, 27.29%, 26.38%, 28.48%, and 34.68% increase in cylinder pressure for the blends B0, B10, B20, B30, and B40, respectively, at 75% of rated load conditions. Higher peak heat release rate increased by 23.19%, 14.03%, 26.32%, 21.87%, and 25.53% for the blends B0, B10, B20, B30, and B40, respectively, at 75% of rated load conditions, when compression ratio was increased from16.5 : 1 to 18.5 : 1. The delay period decreased by 21.26%, CO emission reduced by 14.28%, andNOxemission increased by 22.84% for B40 blends at 75% of rated load conditions, when compression ratio was increased from 16.5 : 1 to 18.5 : 1. It is concluded that Jatropha oil ester can be used as fuel in diesel engine by blending it with diesel fuel.


2020 ◽  
Author(s):  
Ganesan Subbiah ◽  
Hemanandh Janarthanam ◽  
Purushothaman Mani ◽  
K. S. Sridhar Raja ◽  
R. Periya Sakthivel ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4578 ◽  
Author(s):  
Fayaz Hussain ◽  
Manzoore Elahi M. Soudagar ◽  
Asif Afzal ◽  
M.A. Mujtaba ◽  
I.M. Rizwanul Fattah ◽  
...  

This study considered the impacts of diesel–soybean biodiesel blends mixed with 3% cerium coated zinc oxide (Ce-ZnO) nanoparticles on the performance, emission, and combustion characteristics of a single cylinder diesel engine. The fuel blends were prepared using 25% soybean biodiesel in diesel (SBME25). Ce-ZnO nanoparticle additives were blended with SBME25 at 25, 50, and 75 ppm using the ultrasonication process with a surfactant (Span 80) at 2 vol.% to enhance the stability of the blend. A variable compression ratio engine operated at a 19.5:1 compression ratio (CR) using these blends resulted in an improvement in overall engine characteristics. With 50 ppm Ce-ZnO nanoparticle additive in SBME25 (SBME25Ce-ZnO50), the brake thermal efficiency (BTE) and heat release rate (HRR) increased by 20.66% and 18.1%, respectively; brake specific fuel consumption (BSFC) by 21.81%; and the CO, smoke, and hydrocarbon (HC) decreased by 30%, 18.7%, and 21.5%, respectively, compared to SBME25 fuel operation. However, the oxides of nitrogen slightly rose for all the nanoparticle added blends. As such, 50 ppm of Ce-ZnO nanoparticle in the blend is a potent choice for the enhancement of engine performance, combustion, and emission characteristics.


2018 ◽  
Vol 178 ◽  
pp. 146-177 ◽  
Author(s):  
Manzoore Elahi M. Soudagar ◽  
Nik-Nazri Nik-Ghazali ◽  
Md. Abul Kalam ◽  
I.A. Badruddin ◽  
N.R. Banapurmath ◽  
...  

2015 ◽  
Vol 812 ◽  
pp. 79-84
Author(s):  
Venkata Ramesh Mamilla ◽  
G. Lakshmi Narayana ◽  
A. Rakesh ◽  
B. Vamsi Krishna

This Paper deals with the study of the potential substitution of Animal Tallow Methyl Ester (ATME) Blends for diesel as fuel for automobiles and other industrial purpose.The objective of this paper is to analyse the performance and emission characteristics of the animal tallow methyl esters and comparing them with petroleum diesel. The tests were carried out on a 3.5 KW, single cylinder, and direct injection engine. Engine tests have been carried out on 20% increase in steps of ATME blends with the aim of obtaining comparative measures of brake power, specific fuel consumption and emissions such as CO2, CO, HC, smoke density and NOx to study the behavior of the diesel engine. The performance and emission characteristics affected by various parameters like compression ratio which shows the major impact on engine performance by fuelling with biodiesel.Tests are also carried out on Variable Compression Ratio Engine B20 (ATME) which results in minor decrease in thermal efficiency with significant improvement in reduction of carbon monoxide and hydrocarbons when compared to diesel. The experimental result shows that 20% of blend shows better performance with reduced pollution on V.C.R engine.


2021 ◽  
Vol 143 (12) ◽  
Author(s):  
A. Anderson ◽  
Amal M. Al-Mohaimeed ◽  
Mohamed Soliman Elshikh ◽  
T. R. Praveenkumar ◽  
M. Sekar

Abstract The current study emphasis on the engine performance and emission characteristics of rapeseed and soya biodiesel dispersion on a novel nanocatalyst at different concentrations of 25 ppm and 50 ppm. The results of this study were compared with those of conventional diesel at varying load conditions on a combustion ignition engine. An α-Fe2O3-doped Al2O3 was mixed with rapeseed biodiesel and soya biodiesel using an ultrasonicator at a frequency of 25 kHz. This study revealed that the incorporation of nanoparticles in biodiesel enhanced the performance of the blends by reducing the content of lignin and other unsaturated fatty acids. The improvement in the performance of the engine is mainly attributed to the high area-to-volume ratio of the nanocatalyst. Emissions of NOx. hydrocarbon and carbon monoxide during the combustion reaction increased significantly when nanoparticles were added at higher concentrations. Contrastingly, the emission of NOx in pure biodiesel was higher than that in conventional diesel. The addition of nanoparticles reduced CO emissions due to the presence of extra oxygen molecules and converted carbon monoxide into carbon dioxide. Soya seed biodiesel blends with 50 ppm nanoparticles showed better engine performance and emission characteristics as compared with all other blends.


2013 ◽  
Vol 56 ◽  
pp. 583-590 ◽  
Author(s):  
A.M. Liaquat ◽  
H.H. Masjuki ◽  
M.A. Kalam ◽  
I.M. Rizwanul Fattah ◽  
M.A. Hazrat ◽  
...  

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