Exergy and Energy Analysis of α-Fe2O3-Doped Al2O3 Nanocatalyst-Based Biodiesel Blends—Performance and Emission Characteristics

2021 ◽  
Vol 143 (12) ◽  
Author(s):  
A. Anderson ◽  
Amal M. Al-Mohaimeed ◽  
Mohamed Soliman Elshikh ◽  
T. R. Praveenkumar ◽  
M. Sekar
Keyword(s):  
Carbon Monoxide ◽  
Energy Analysis ◽  
Unsaturated Fatty Acids ◽  
Engine Performance ◽  
Volume Ratio ◽  
Emission Characteristics ◽  
Biodiesel Blends ◽  
Performance And Emission ◽  
High Area ◽  
Load Conditions

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.

scholarly journals Effect of various nanoadditives on the performance and emission characteristics of a diesel engine fuelled with jojoba biodiesel – diesel blends: A review

2019 ◽  
Vol 6 (4) ◽  
pp. 485-490 ◽  
Author(s):  
Swati Agarwal ◽  
Suphiya Khan
Keyword(s):  
Diesel Engine ◽  
High Surface ◽  
High Surface Area ◽  
Engine Performance ◽  
Volume Ratio ◽  
Environmental Benefits ◽  
Emission Characteristics ◽  
Performance And Emission ◽  
Review Reports ◽  
Conventional Diesel Fuel

The review reports the results of various researches work on the engine performance and emission characteristics of diesel engine using different nanoadditives in jojoba biodiesel - diesel blends. Blending of diesel with biodiesel in a diesel engine has gained importance, due to its economical and environmental benefits. Jojoba biodiesel gained an importance as an alternative fuel over conventional diesel fuel even with their unfavorable effects of power reduction. The wide spread usage of nanoadditives to improve the combustion quality may be a good solution of this problem. Blending of nanoparticles as an additives in biodiesel – diesel blends improves the thermophysical properties, such as thermal conductivity, mass diffusivity and high surface area-to-volume ratio. Based on the results available in the literature, it has been found that nanoadditives with jojoba biodiesel - diesel blends improve the performance of diesel engine and reduced the emission of toxic gases depending upon the dosage of the nanoadditives.

scholarly journals Combustion and Emission Characteristics of Variable Compression Ignition Engine Fueled withJatropha curcasEthyl Ester Blends at Different Compression Ratio

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Rajneesh Kumar ◽  
Anoop Kumar Dixit
Keyword(s):  
Compression Ratio ◽  
Diesel Fuel ◽  
Engine Performance ◽  
Emission Characteristics ◽  
Compression Ignition Engine ◽  
Performance And Emission ◽  
Peak Heat Release Rate ◽  
Ignition And Combustion ◽  
Co Emission ◽  
Load Conditions

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.

scholarly journals ENERGY ANALYSIS OF KARANJA OIL AS A SUPPLEMENTARY FUEL FOR COMPRESSION IGNITION ENGINE

2016 ◽  
Vol 9 (2) ◽  
pp. 97-101
Author(s):  
Biplab Das ◽  
Pradip Lingfa
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Diesel Fuel ◽  
Energy Analysis ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Biodiesel Blends ◽  
Karanja Oil ◽  
Load Conditions

The paper highlights the results of an experimental investigation carried out on Karanja oil as a supplementary for diesel fuel in Compression Ignition engine. In the present study, triglycerides of Karanja oil is converted into mono-ester (biodiesel) using based catalyst transesterfication process. Karanja biodiesel is blended with petroleum diesel in the volumetric proportions of 2−10%. Results reveal that the performance characteristics of Karanja biodiesel blends are well comparable with diesel fuel. The emission characteristics such as CO, HC and smoke are found to be lower for Karanja biodiesel blends at all the engine load conditions compared to diesel fuel. Hence, it is concluded that Karanja oil at lower blends can be used in diesel engine without any substantial engine modification.

Submerged Electric Arc Decomposition of Methanol for Cold-Starting Methanol-Fueled Engines

1994 ◽  
Vol 116 (2) ◽  
pp. 155-160
Author(s):  
R. Sethuraman ◽  
H. W. Parker ◽  
T. T. Maxwell ◽  
J. C. Jones
Keyword(s):  
Carbon Monoxide ◽  
Engine Performance ◽  
Gas Production ◽  
Methanol Decomposition ◽  
Electric Arc ◽  
Attractive Alternative ◽  
Emission Characteristics ◽  
Performance And Emission ◽  
Cold Starting ◽  
M 10

Methanol is an attractive alternative fuel based on its engine performance and emission characteristics. Methanol can be synthesized from biomass or urban waste, and as a result, it does not contribute to the net addition of carbon dioxide to the atmosphere. Cold-starting of methanol-fueled engines is difficult at temperatures below 10°C, and at sub-zero temperatures, starting may be impractical without significant engine modifications. In this research, an attempt has been made to study and prevent the cold-starting problem by using hydrogen and carbon monoxide gas mixture produced by decomposing liquid methanol using a submerged electric arc device. The electric arc has the advantage of instantaneous gas production and the experimental data relating to the performance of the device and its design are reported. The device is capable of producing up to 0.01 cu m (10 L) per min of a gas which is primarily carbon monoxide and hydrogen with a thermal efficiency of 18 percent relative to the theoretical energy requirements for methanol decomposition. The feasibility of using this arc device is analyzed based on the simulated cold-starting data collected for a single-cylinder Kawasaki engine at −20°C.

scholarly journals Enhancement in Combustion, Performance, and Emission Characteristics of a Diesel Engine Fueled with Ce-ZnO Nanoparticle Additive Added to Soybean Biodiesel Blends

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4578 ◽  
Author(s):  
Fayaz Hussain ◽  
Manzoore Elahi M. Soudagar ◽  
Asif Afzal ◽  
M.A. Mujtaba ◽  
I.M. Rizwanul Fattah ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Compression Ratio ◽  
Engine Performance ◽  
Emission Characteristics ◽  
Zno Nanoparticle ◽  
Oxides Of Nitrogen ◽  
Biodiesel Blends ◽  
Performance And Emission ◽  
Fuel Blends ◽  
Soybean Biodiesel

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.

scholarly journals ENERGY ANALYSIS OF KARANJA OIL AS A SUPPLEMENTARY FUEL FOR COMPRESSION IGNITION ENGINE

2016 ◽  
Vol 9 (2) ◽  
pp. 97-101
Author(s):  
Biplab Das ◽  
Pradip Lingfa
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Diesel Fuel ◽  
Energy Analysis ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Biodiesel Blends ◽  
Karanja Oil ◽  
Load Conditions

The paper highlights the results of an experimental investigation carried out on Karanja oil as a supplementary for diesel fuel in Compression Ignition engine. In the present study, triglycerides of Karanja oil is converted into mono-ester (biodiesel) using based catalyst transesterfication process. Karanja biodiesel is blended with petroleum diesel in the volumetric proportions of 2−10%. Results reveal that the performance characteristics of Karanja biodiesel blends are well comparable with diesel fuel. The emission characteristics such as CO, HC and smoke are found to be lower for Karanja biodiesel blends at all the engine load conditions compared to diesel fuel. Hence, it is concluded that Karanja oil at lower blends can be used in diesel engine without any substantial engine modification.

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