Emission Performance of a Diesel Engine Running on Soybean Methyl Ester and its Blends with Diesel Fuel at Different Compression Ratios

2012 ◽  
Author(s):  
Saadat Kamgar ◽  
Vahid Dadi
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Diesel Fuel ◽  
Emission Performance ◽  
Soybean Methyl Ester

Optimization of mixed biofuel composition for diesel engine

2021 ◽  
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Diesel Fuel ◽  
Rapeseed Oil ◽  
Alternative Fuels ◽  
Operating Mode ◽  
Promising Alternative ◽  
Motor Fuels ◽  
Engine Combustion ◽  
Basic Characteristics

Biofuels derived from vegetable oils are known to be promising alternative fuels for diesel engines. The possibility of using mixtures of petroleum diesel fuel with rapeseed oil and rapeseed oil methyl ester as environmentally friendly motor fuels is considered. The practicability of changing the composition of these mixtures in accordance with the engine operating mode is shown. A technique for multicriteria optimization of the composition of such mixed biofuels is suggested. The basic characteristics of the optimal composition of these mixed biofuels are calculated. A device for regulating fuel’s composition is proposed. The basic characteristic of regulation of the blended biofuel composition realized by the device is presented. Keywords diesel engine; combustion chamber; oil diesel fuel; rapeseed oil; rapeseed oil methyl ester; biofuel mixture; ecological characteristics; exhaust gases toxicity

Experimental investigations on combustion of jatropha methyl ester in a turbocharged direct-injection diesel engine

2008 ◽  
Vol 222 (10) ◽  
pp. 1865-1877 ◽  
Author(s):  
K Anand ◽  
R P Sharma ◽  
P S Mehta
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Peak Pressure ◽  
Direct Injection ◽  
Pressure Rise ◽  
Experimental Investigations ◽  
Injection Timing ◽  
Gas Temperature

Suitability of vegetable oil as an alternative to diesel fuel in compression ignition engines has become attractive, and research in this area has gained momentum because of concerns on energy security, high oil prices, and increased emphasis on clean environment. The experimental work reported here has been carried out on a turbocharged direct-injection multicylinder truck diesel engine using diesel fuel and jatropha methyl ester (JME)-diesel blends. The results of the experimental investigation indicate that an increase in JME quantity in the blend slightly advances the dynamic fuel injection timing and lowers the ignition delay compared with the diesel fuel. A maximum rise in peak pressure limited to 6.5 per cent is observed for fuel blends up to 40 per cent JME for part-load (up to about 50 per cent load) operations. However, for a higher-JME blend, the peak pressures decrease at higher loads remained within 4.5 per cent. With increasing proportion of JME in the blend, the peak pressure occurrence slightly advances and the maximum rate of pressure rise, combustion duration, and exhaust gas temperature decrease by 9 per cent, 15 per cent and 17 per cent respectively. Although the changes in brake thermal efficiencies for 20 per cent and 40 per cent JME blends compared with diesel fuel remain insignificant, the 60 per cent JME blend showed about 2.7 per cent improvement in the brake thermal efficiency. In general, it is observed that the overall performance and combustion characteristics of the engine do not alter significantly for 20 per cent and 40 per cent JME blends but show an improvement over diesel performance when fuelled with 60 per cent JME blend.

The Emission Performance Research and Analysis of Diesel Engine Fueled with Biodiesel Hybrid Fuel

2012 ◽  
Vol 610-613 ◽  
pp. 1501-1504
Author(s):  
Gui Fu Wu ◽  
Ji Yi Luan ◽  
Yuan Hua Jia ◽  
Dong Hua Jiang
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Load Condition ◽  
Biodiesel Fuel ◽  
Smoke Emission ◽  
Emission Performance ◽  
Full Load ◽  
Consumption Ratio ◽  
Performance Research

Biodiesel can be made from the esterification with plant or animal fat.It has been being paid more and more attention for its characteristics of non-sulphur, non-arene,higher hexadecane and biodegradablity and renewablity Biodiesel is similar to No.0 diesel in characteristics,so it can be applied to engines directly without changing the structure.This article shows the emission performance of diesel mixed with biodiesel fuel which in different proportion,and its CO, HC and smoking exhaust have been decreased greatly,then NOx increase slightly,while the fuel-consumption ratio remains stable(when on full load condition,5%, 15% and25% of hybrid fuel compared with pure diesel fuel,HC emission decreases by 15%,33.3% and 83.3%,and carbon smoke emission decreases by 16.25%,51.8% and 63.6%).

scholarly journals COMPARATIVE INVESTIGATIONS INTO ENERGETIC AND ECOLOGICAL PARAMETERS OF CAMELINA-BASED BIOFUEL USED IN THE 1Z DIESEL ENGINE

Transport ◽  
2012 ◽  
Vol 27 (2) ◽  
pp. 171-177 ◽  
Author(s):  
Sergejus Lebedevas ◽  
Saugirdas Pukalskas ◽  
Justas Žaglinskis ◽  
Jonas Matijošius
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Diesel Fuel ◽  
Fatty Acid Methyl Esters ◽  
Positive Impact ◽  
Methyl Esters ◽  
Exhaust Gas ◽  
Electronic Control ◽  
Rapeseed Methyl Ester ◽  
Gas Recirculation

The paper presents the findings of comparative investigations into the operation of Audi 80 1.9l 4 cylinder diesel engine, TDI, type 1Z, 66 kW powered by new FAME (fatty acid methyl esters) mixtures of spring (SCME) and winter (WCME) camelina-based biofuel and mineral diesel. The article assesses the principles of operating electronic control over the diesel engine (ECS) and exhaust gas recirculation (EGR) and looks at a positive impact of the system on energetic (be, ηe) and ecological (CH, NOx, CO2, SM) parameters. The ECS of the average and maximal power of the engine improve in-cylinder air injection that has an impact on an increase in ηe by approximately 30% and reduces the emission of the harmful components from incomplete combustion. It is accepted that in case diesel fuel is replaced by FAME biofuels (RME – rapeseed methyl ester; SCME – spring camelina methyl ester; WCME – winter camelina methyl ester), ECS control parameters shall not be retrofitted or additionally optimized. The properties of camelina-based biofuel mixtures B30 (SCME) and B30 (WCME) and diesel fuel are similar to the properties of the standard mixtures of RME biofuel B30 (RME). If compared to diesel fuel, the use of camelina-based biofuel mixtures B30 (SCME) and B30 (WCME) enables lower emissions of harmful components from exhaust gases, which makes approximately 15% of CH and 20÷25% of SM.

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