A Comprehensive Analysis on Biodiesel Blend Model

2018 ◽  
Vol 8 (2) ◽  
pp. 25-46
Author(s):  
Yarrapragada K.S.S. Rao ◽  
Bala Krishna B.
Keyword(s):  
Firefly Algorithm ◽  
Neural Model ◽  
Diesel Oil ◽  
Comprehensive Analysis ◽  
Emission Characteristics ◽  
Estimation Errors ◽  
Emission Analysis ◽  
Biodiesel Blend ◽  
Oil Blend ◽  
Blend Ratios

This article addresses the issue regarding the exploitation of conventional fuel diesel. To overcome this issue, the Tamanu oil-diesel oil blend is introduced, where a new neural model is proposed, which is trained by renowned firefly algorithm, termed as FF-NM. In addition, different compression ratios such as 15, 16, 17, 17.5 and blend ratios like 5:95, 6:94, 7:93, 8:92, and 9:91and 10:90 is exploited. The emission analysis and the combustion characteristics of the TO-diesel oil blend are evaluated as well as the MSE analysis is carried out for the proposed FF-NM method. For all the predicted parameters, the MSE of the proposed method is low for varying blend as well as the compression ratios. Moreover, the emission characteristics of the HC, CO2, NOx, CO, as well as O2 at different CR concerning the actual, and FF-NM is computed with the chosen blend ratios. From analysis, it is recognized that the estimation errors are less for the FF-NM approach. Hence, the simulation outcomes demonstrate the better performance of the proposed FF-NM approach under various compression ratios of 15, 16, 17 and 17.5, respectively.

scholarly journals Performance and Emission Characteristics of a Diesel Engine Fueled by Biodiesel-Ethanol-Diesel Fuel Blends

2018 ◽  
Vol 4 (1) ◽  
pp. 26-36
Author(s):  
Fatima Mohammed Ghanim ◽  
Ali Mohammed Hamdan Adam ◽  
Hazir Farouk
Keyword(s):  
Diesel Engine ◽  
Engine Performance ◽  
Exhaust Emission ◽  
Biodiesel Fuel ◽  
Emission Characteristics ◽  
Emission Analysis ◽  
Performance And Emission ◽  
Fuel Blends ◽  
Oxygenated Additives ◽  
Blend Ratios

Abstract: There is growing interest to study the effect of blending various oxygenated additives with diesel or biodiesel fuel on engine performance and emission characteristics. This study aims to analyze the performance and exhaust emission of a four-stroke, four-cylinder diesel engine fueled with biodiesel-ethanol-diesel. Biodiesel was first produced from crude Jatropha oil, and then it was blended with ethanol and fossil diesel in different blend ratios (B10E10D80, B12.5E12.5D75, B15E15D70, B20E20D60 and B25E25D50). The engine performance and emission characteristics were studied at engine speeds ranging from 1200 to 2000 rpm. The results show that the brake specific fuel consumption increases while the brake power decreases as the percentage of biodiesel and ethanol increases in the blend. The exhaust emission analysis shows a reduction in CO2 emission and increase in NOx emission when the biodiesel -to- ethanol ratio increases in the blends, when compared with diesel as a reference fuel.

Wear Assessment in a Biodiesel Fueled Compression Ignition Engine

2003 ◽  
Vol 125 (3) ◽  
pp. 820-826 ◽  
Author(s):  
A. K. Agarwal ◽  
J. Bijwe ◽  
L. M. Das
Keyword(s):  
Coefficient Of Friction ◽  
Linseed Oil ◽  
Diesel Oil ◽  
Lubricating Oil ◽  
Engine Fuel ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Metal Debris ◽  
Wear Rates ◽  
Biodiesel Blend

Biodiesel is prepared using linseed oil and methanol by the process of transesterification. Use of linseed oil methyl ester (LOME) in a compression ignition engine was found to develop a highly compatible engine-fuel system with low emission characteristics. Two similar engines were operated using optimum biodiesel blend and mineral diesel oil, respectively. These were subjected to long-term endurance tests. Lubricating oil samples drawn from both engines after a fixed interval were subjected to elemental analysis. Quantification of various metal debris concentrations was done by atomic absorption spectroscopy (AAS). Wear metals were found to be about 30% lower for a biodiesel-operated engine system. Lubricating oil samples were also subjected to ferrography indicating lower wear debris concentrations for a biodiesel-operated engine. The additional lubricating property of LOME present in the fuel resulted in lower wear and improved life of moving components in a biodiesel-fuelled engine. However, this needed experimental verification and quantification. A series of experiments were thus conducted to compare the lubricity of various concentrations of LOME in biodiesel blends. Long duration tests were conducted using reciprocating motion in an SRV optimol wear tester to evaluate the coefficient of friction, specific wear rates, etc. The extent of damage, coefficient of friction, and specific wear rates decreased with increase in the percentage of LOME in the biodiesel blend. Scanning electron microscopy was conducted on the surfaces exposed to wear. The disk and pin using 20% biodiesel blend as the lubricating oil showed lesser damage compared to the one subjected to diesel oil as the lubricating fluid, confirming additional lubricity of biodiesel.

Exhaust Emission Characteristics of Excavator With 6.0 Liter Diesel Engine in Real Work Conditions

2018 ◽  
Author(s):  
Sangil Kwon ◽  
Sung-Woo Kim ◽  
Ki-Ho Kim ◽  
Youngho Seo ◽  
Mun Soo Chon ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Power Output ◽  
Work Conditions ◽  
Oxidation Catalyst ◽  
Emission Characteristics ◽  
Emission Measurement ◽  
Emission Analysis ◽  
The Real ◽  
Real Work

The purpose of this study is evaluate emission characteristics, such as nitrogen oxides (NOx), hydrocarbon, carbon monoxide, and particulate matter (PM), of excavator with Tier-4f level diesel engine in the real work conditions. The test excavator has an engine power of 124 kW at an engine speed of 1800rpm, and it has various after-treatment devices, such as exhaust gas recirculation (EGR), selective catalytic reduction (SCR), and diesel oxidation catalyst (DOC), to reduce the engine-out emissions. The emissions including carbon monoxide (CO), carbon dioxides (CO2), and NOx, were measured by portable emission measurement system (PEMS). The PEMS device conducted a correlation analysis with the emission bench on the engine dynamometer before being used to measure the real-work to confirm the reliability of the equipment. The tests were carried out in four categories: idling, driving, excavations and flattening. It revealed that the average power output for each operation mode was higher in the order of flattening, excavation, and drive. On average, those are higher than that for the non-road transient cycle (NRTC) certification mode as 1.5 to 1.9 times. It may be determined that the power output is higher in conditions where there are more boom and bucket movements than the movement of the vehicle itself. In emission analysis, NOx and HC emission in driving mode are higher than other two modes: excavation and flattening. The real time NOx have been low in most test conditions, but large quantities of NOx have been released due to the deactivation of the SCR catalyst during cold start period or immediately after the non-working.

Sign in / Sign up

Export Citation Format

Share Document