scholarly journals Influence of nanoparticles in polanga (calophyllum inophyllum) biodiesel operated in an unmodified diesel engine

2020 ◽  
Author(s):  
Harish Venu ◽  
Prabhu Appavu
Keyword(s):  
Diesel Engine ◽  
Research Work ◽  
Volume Ratio ◽  
Combustion Efficiency ◽  
Al2o3 Nanoparticles ◽  
Brake Thermal Efficiency ◽  
Single Cylinder ◽  
Performance And Emissions ◽  
Nano Additives ◽  
Smoke Opacity

Abstract The current research work emphases on analysing the characteristics of combustion, performance, and emissions of Polanga Biodiesel (PBD) fuelled single cylinder diesel engine with Al2O3 nano-additives added at concentration of 25 ppm and 50 ppm. The results were compared with the baseline diesel fuel at varying engine loads (25%, 50%, 75% and 100%) in a agriculture based single cylinder diesel engine of 17.5 Compression ratio at constant engine speed of 1500 rpm. Al2O3 nano-additives were blended with PBD using magnetic stirrer and ultrasonicator. Experimentation results revealed that, the nanoparticles addition in PBD improved the combustion and emission characteristics of base fuel due to higher surface area to volume ratio of nano-additives. Moreover, Al2O3 nanoparticles addition enhanced the brake thermal efficiency (BTE) and lowered the brake specific fuel consumption (BSFC) by 6.58% and 7.38% respectively. Subsequently, the emissions of HC, CO, NOx and smoke opacity were improved with the addition of fuel borne additives in PBD owing to improved combustion efficiency.

scholarly journals Influence of Silica Nano-Additives on Performance and Emission Characteristics of Soybean Biodiesel Fuelled Diesel Engine

2021 ◽  
Author(s):  
R. S. Gavhane ◽  
A. M. Kate ◽  
A. A. Pawar ◽  
Manzoore Elahi M Soudagar ◽  
Nik-Nazri Nik-Ghazali ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Combustion Efficiency ◽  
Emission Characteristics ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Fuel Blends ◽  
Soybean Biodiesel ◽  
Performance And Emissions ◽  
Nano Additives ◽  
Load Conditions

The present study examines the effect of SiO2 nano-additives on the performance and emission characteristics of a diesel engine fuelled with soybean biodiesel. Soybean biofuel was prepared using the transesterification process. Nano-additives characterisations were done using different tests such as FESEM, XRD, EDS, etc., to study the morphology of nano-additives. For proper blending of nano-additives with biodiesel, the ultrasonication process was used. Surfactant was used for the stabilisation of nano-additives. After making all the combinations of nano fuel blends, physicochemical properties were measured as per ASTM standards. Performance and emissions readings were taken at different load conditions. It was found that with the addition of SiO2 nano-additives, brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC) was increased by 3.48-6.39% and 5.81-9.88%, respectively. Significant reduction of CO, CO2, NOx, and smoke emissions were also observed compared to baseline fule due to better combustion efficiency with the use of SiO2 nano-additive.

scholarly journals Influence of Silica Nano-Additives on Performance and Emission Characteristics of Soybean Biodiesel Fuelled Diesel Engine

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1489
Author(s):  
R. S. Gavhane ◽  
A. M. Kate ◽  
Manzoore Elahi M. Soudagar ◽  
V. D. Wakchaure ◽  
Sagar Balgude ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Emission Characteristics ◽  
X Ray Diffraction ◽  
Brake Thermal Efficiency ◽  
X Ray ◽  
Performance And Emission ◽  
Fuel Blends ◽  
Soybean Biodiesel ◽  
Performance And Emissions ◽  
Nano Additives

The present study examines the effect of silicon dioxide (SiO2) nano-additives on the performance and emission characteristics of a diesel engine fuelled with soybean biodiesel. Soybean biofuel was prepared using the transesterification process. The morphology of nano-additives was studied using scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS). The Ultrasonication process was used for the homogeneous blending of nano-additives with biodiesel, while surfactant was used for the stabilisation of nano-additives. The physicochemical properties of pure and blended fuel samples were measured as per ASTM standards. The performance and emissions characteristics of different fuel samples were measured at different loading conditions. It was found that the brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC) increased by 3.48–6.39% and 5.81–9.88%, respectively, with the addition of SiO2 nano-additives. The carbon monoxide (CO), hydrocarbon (HC) and smoke emissions for nano-additive added blends were decreased by 1.9–17.5%, 20.56–27.5% and 10.16–23.54% compared to SBME25 fuel blends.

scholarly journals Influence of Ultra Injection Pressure with Dynamic Injection Timing on CRDI Engine Performance Using Simarouba Biodiesel Blends

2018 ◽  
Vol 15 (4) ◽  
pp. 5748-5759
Author(s):  
Srinath Pai ◽  
Abdul Sharief ◽  
Shiva Kumar
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Direct Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Injection Timing ◽  
Brake Thermal Efficiency ◽  
High Speed Diesel ◽  
Performance And Emissions ◽  
Smoke Opacity

A single cylinder diesel engine upgraded to operate Common Rail Direct Injection (CRDI) system and employed in this investigation. Tests were conducted on this engine using High-Speed diesel (HSD) and Simarouba biodiesel (SOME) blends to determine the influence of Injection Pressure (IP) and Injection Timing (IT) on the performance and emissions. Four unique IP of 400 bar to 1000 bar, in steps of 200 bar and four differing ITs of 10°, 13°, 15° and 18° before Top Dead Center (bTDC) combinations were attempted for the 25% to full load. Compression Ratio (CR) of 16.5 and Engine speed of 1500 RPM was kept constant during all trails. Critical performance parameter like Brake Thermal Efficiency (BTE) and Brake Specific Fuel Consumption (BSFC) were analyzed, primary emission parameters of the diesel engine The NOx and Smoke opacity were recorded. Finally, the outcomes of each combination were discussed.

scholarly journals Performance and Emission Characteristics of Diesel Engine with the Biodiesel-Acetylene Addition using Dual Fuel Mode

2019 ◽  
Vol 9 (2S4) ◽  
pp. 616-621
Keyword(s):  
Diesel Engine ◽  
Research Work ◽  
Engine Performance ◽  
Dual Fuel ◽  
Emission Characteristics ◽  
Flow Rates ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Smoke Opacity ◽  
Fuel Technology

This research work investigated the diesel engine performance using 20% Pongamia grease methyl ester through the effect of different flow rates of acetylene using dual-fuel technique. Acetylene be inducted within the intake various at the flow rates of 1lpm, 2lpm, 3lpm and 4lpm along with air. Initially a test was conducted by diesel fuel along with POME20 on different loads. Then the experiment was carried out with POME20 with different flow rates of acetylene. Addition of acetylene increased the brake thermal efficiency (BTE) among POME20 at all acetylene flow rates on 100% load. The results showed that the BTE was enhanced via regarding 1–3.4% at knock-limited acetylene shares at 100% load. The engine emits higher NOx emission for POME20 without acetylene share and then it is additional improved with the adding up of acetylene shares, while the smoke opacity was reduced by 47% with acetylene addition at complete load. Here is a decrease in HC as well as CO emissions were experiential through an acetylene orientation along with POME20. Finally, it is suggested that the poor presentation as well as emissions connected through biodiesel into a diesel engine can be improved through the induction of acetylene with 4lpm flow rate in the intake various by dual fuel technology.

Effect of Biodiesel, JP-8 and Ultra Low Sulfur Diesel Fuel on Autoignition, Combustion, Performance and Emissions in a Single Cylinder Diesel Engine

2010 ◽  
Author(s):  
Chandrasekharan Jayakumar ◽  
Jagdish Nargunde ◽  
Anubhav Sinha ◽  
Walter Bryzik ◽  
Naeim A. Henein ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Properties ◽  
Nox Emissions ◽  
Single Cylinder ◽  
Combustion Performance ◽  
Ultra Low Sulfur Diesel ◽  
Diffusion Controlled ◽  
Performance And Emissions ◽  
Combustion Fraction ◽  
Low Sulfur

Concern about the depletion of petroleum reserves, rising prices of conventional fuels, security of supply and global warming have driven research toward the development of renewable fuels for use in diesel engines. These fuels have different physical and chemical properties that affect the diesel combustion process. This paper compares between the autoignition, combustion, performance and emissions of soybean derived biodiesel, JP-8 and ultra low sulfur diesel (ULSD) in a high speed single-cylinder research diesel engine equipped with a common rail injection system. Tests were conducted at steady state conditions at different injection pressures ranging from 600 bar to 1200 bar. The ‘rate of heat release’ traces are analyzed to determine the effect of fuel properties on the ignition delay, premixed combustion fraction and mixing and diffusion controlled combustion fractions. Biodiesel produced the largest diffusion controlled combustion fraction at all injection pressures compared to ULSD and JP-8. At 600 bar injection pressure, the diffusion controlled combustion fraction for biodiesel was 53% whereas both JP-8 and ULSD produced 39%. In addition, the effect of fuel properties on engine performance, fuel economy, and engine-out emissions is determined. On an average JP-8 produced 3% higher thermal efficiency than ULSD. Special attention is given to the NOx emissions and particulate matter characteristics. On an average biodiesel produced 37% less NOx emissions compared to ULSD and JP-8.

scholarly journals An investigation of effect of biodiesel and aviation fuel jeta-1 mixtures performance and emissions on diesel engine

2014 ◽  
Vol 18 (1) ◽  
pp. 239-247 ◽  
Author(s):  
Hasan Yamik
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Chemical Properties ◽  
Engine Performance ◽  
Combustion Efficiency ◽  
Aviation Fuel ◽  
Aviation Industry ◽  
Performance And Emission ◽  
Performance And Emissions ◽  
Biodiesel Fuels

Biodiesel is an alternative fuel for diesel engines which doesn?t contain pollutants and sulfur; on the contrary it contains oxygen. In addition, both physical and chemical properties of sunflower oil methyl ester (SME) are identical to diesel fuel. Conversely, diesel and biodiesel fuels are widely used with some additives to reduce viscosity, increase the amount of cetane, and improve combustion efficiency. This study uses diesel fuel, SME and its mixture with aviation fuel JetA-1 which are widely used in the aviation industry. . Fuel mixtures were used in 1-cylinder, 4-stroke diesel engine under full load and variable engine speeds. In this experiment, engine performance and emission level are investigated. As a conclusion, as the JetA-1 ratio increases in the mixture, lower nitrogen oxide (NOx) emission is measured. Also, specific fuel consumption is lowered.

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