Influence of quaternary combinations of biodiesel/methanol/n-octanol/diethyl ether from waste cooking oil on combustion, emission, and stability aspects of a diesel engine

2021 ◽  
Vol 240 ◽  
pp. 114268
Author(s):  
Ahmed I. EL-Seesy ◽  
Mahmoud S. Waly ◽  
Zhixia He ◽  
Hesham M. El-Batsh ◽  
Alhassan Nasser ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diethyl Ether ◽  
Waste Cooking Oil ◽  
Cooking Oil ◽  
Combustion Emission

Experimental Study on Urea Dosing Strategy for SCR on an Engine Fuelled with Bio-Diesel

2013 ◽  
Vol 848 ◽  
pp. 286-290 ◽  
Author(s):  
Hong Juan Ren ◽  
Di Ming Lou ◽  
Pi Qiang Tan ◽  
Zhi Yuan Hu
Keyword(s):  
Diesel Engine ◽  
Consumption Rate ◽  
Waste Cooking Oil ◽  
Conversion Ratio ◽  
Engine Torque ◽  
Average Value ◽  
Cooking Oil ◽  
Fuel Consumption Rate ◽  
Emission Standards ◽  
Dosing Strategy

Urea dosing strategy for SCR is studied for a diesel engine fuelled with bio-diesel BD20. Bio-diesel BD20 is consisted of biofuels made from waste cooking oil and national V diesel, and biofuels accounts for 20% by volume. The results show that, bio-diesel engine torque decreases by a maximum of 0.55%, brake fuel consumption rate increases by a maximum of 0.53% ,when the urea dosing strategy is adjusted and the engine and SCR are not changed. ESC tests show that, the maximum of NOXconversion ratio is 95%, the minimum is 57%, and the average value is 74% under ESC 12 conditions except idling, the maximum of HC decrease ratio is 74%, the minimum is 35%, and the average value is 55%, when the urea is dosed. NOXemission is 1.55 g/(kW·h) in ESC test, NOXemission is 2 g/(kW·h) in ETC test, and NH3slip is lower than 10×10-6, which proves that the NOXemission from the engine fuelled with BD20 can meet national emission standards V by adjusting the urea dosing strategy.

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