scholarly journals Combined effect of ‘biodiesel, ethanol, exhaust gas recirculation and magnetization of fuel’ on the performance and emission parameters of diesel engine.

Author(s):  
Ajay Chandravanshi ◽  
◽  
Shrikant Pandey ◽  
Rakesh K. Malviya ◽  
◽  
...  

Utilization of biodiesel as alternative fuel results in higher emission of oxides of nitrogen (NOx) and reduced performance parameters. Exhaust gas recirculation (EGR) is a great technology to control the emission of NOx, but use of EGR reduces the performance parameters of diesel engines. Oxidative addition and magnetization of fuel help to make the combustion complete. In the present investigation, Jatropha biodiesel has been used with diesel in the form of a blend having 20% biodiesel (BD20) as fuel in 4-stroke, direct ignition, diesel engine. 5% Ethanol (E5) has been used as additive along with biodiesel blends and 10% EGR. The magnetization of fuel (MF) has been done with the help of a permanent magnet having strength of 3000 gauss. The results of this investigation show that BD20 is beneficial as fuel for reducing emissions like Carbon Mono-oxide, Hydro-Carbon, and smoke but it reduces Brake Power and Brake Thermal Efficiency. BD20E5 gives better performance parameters than the BD20, but the emission of HC increases slightly. 10% EGR reduces NOx emission with a small cost of performance parameters but with MF performance and emission parameters were improved.

2020 ◽  
Vol 8 (5) ◽  
pp. 2933-2937

Biodiesel is one of the alternatives which are being widely studied and production of biodiesel is limited by crop land displacement, the Trial examinations are carried on a four stroke Diesel Engine (DE) to inspect the solidness. Exhaust gas recirculation (EGR) is used for control the emission reduction such as NOx, HC & CO. The pongamia oil blended with B20, B40 and B50 of them biodiesel. The biodiesel oils performance are assessed. The performance parameters such as Specific Fuel Consumption (SFC) and Brake Thermal Efficiency (BTE) are calculated. The exhaust emissions such as unburned Hydro-Carbon (HC), oxides of nitrogen (NOx), carbon monoxide (CO), carbon dioxide (co2) and combustion and smoke parameters is discussed in this paper


2015 ◽  
Vol 813-814 ◽  
pp. 819-823 ◽  
Author(s):  
Pavan Bharadwaja Bhaskar ◽  
S. Srihari

In this study the effect on exhaust gases of a diesel engine fuelled by biodiesel and coupling Exhaust Gas Recirculation (EGR) has been done. EGR is a pre-treatment technique to trim down NOx from diesel engines as it is expected to reduce the flame temperature and the oxygen concentration in the combustion chamber. Fossil fuels so-called biodiesel is picked as the blending fuel. Existence of oxygen in Biodiesel aids complete combustion and anticipated to reduce CO and HC emissions. Exhaust Gas Recirculation technique can capably reduce the amount of NOx. EGR may tend to increase the CO and HC emissions, biodiesel which has higher oxygen content is blended to diesel so that it may compensate CO and HC emissions. The performance and emission characteristics of EGR along with biodiesel in a diesel engine are discussed.


Author(s):  
P. V. Walke ◽  
N. V. Deshpande ◽  
A. K. Mahalle

Testing of catalytic converter with exhaust gas recirculation system for diesel engine to reduce pollute gases is chosen for present work. The emphasis is given on hydrocarbon (HC), carbon monoxide (CO) and oxides of nitrogen. The catalytic converter was developed with variations of catalyst plates. Perforated plates of copper and combination of copper oxide and cerium oxide (CeO2 +CuO) were used as the catalyst. Copper spacer was used in between plates to vary the distance. Secondary air was injected into the converter to aid oxidization of HC and CO. Experimental study was carried out on computerized kirloskar single cylinder four stroke (10 B.H.P, 7.4 KW) diesel engine test rig with an eddy current dynamometer. The converter was tested with various combination with exhaust gas re-circulation (EGR) system. There are some improvements in the reduction and conversion efficiency of HC & CO. Exhaust gas re-circulation has proved to be effective in reducing NOx.


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