Direct Injection of Natural Gas in a Heavy-Duty Diesel Engine

2002 ◽  
Author(s):  
James Harrington ◽  
Sandeep Munshi ◽  
Costi Nedelcu ◽  
Patric Ouellette ◽  
Jeff Thompson ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Natural Gas ◽  
Direct Injection ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Relation between hydroxyl and formaldehyde in a direct-injection heavy-duty diesel engine

2011 ◽  
Vol 158 (3) ◽  
pp. 564-572 ◽  
Author(s):  
A.J. Donkerbroek ◽  
A.P. van Vliet ◽  
L.M.T. Somers ◽  
N.J. Dam ◽  
J.J. ter Meulen
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

A detail simulation of reactivity controlled compression ignition combustion strategy in a heavy-duty diesel engine run on natural gas/diesel fuel

2017 ◽  
Vol 19 (7) ◽  
pp. 774-789 ◽  
Author(s):  
Mojtaba Ebrahimi ◽  
Mohammad Najafi ◽  
Seyed Ali Jazayeri ◽  
Ali Reza Mohammadzadeh
Keyword(s):  
Diesel Engine ◽  
Natural Gas ◽  
Diesel Fuel ◽  
Compression Ignition ◽  
Heavy Duty ◽  
Engine Operation ◽  
Reactivity Controlled Compression Ignition ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel ◽  
Compression Ignition Combustion

The aim of this study is to investigate in details the effects of a number of combustion parameters to optimize the reactivity controlled compression ignition operation running on natural gas and diesel fuel. In the present work, a single-cylinder heavy-duty diesel engine with a specially modified bathtub piston bowl profile for reactivity controlled compression ignition operation is studied and simulated through commercial software. A broad load range from 5.6 to 13.5 bar indicated mean effective pressure at a constant engine speed of 1300 r/min, fixed amount of diesel fuel mass, and with no exhaust gas recirculation is considered. The results from the developed model confirm that the model can accurately simulate the reactivity controlled compression ignition combustion. Also, by focusing on the time of formation of certain important radicals in combustion, the start of combustion and the time of natural gas dissociation are accurately predicted. Furthermore, the influence of some parameters such as different diesel fuel injection strategies, intake temperature, and intake pressure on the reactivity controlled compression ignition combustion is evaluated and the limitation of the engine operation at low temperature combustion is investigated.

scholarly journals Study of dual-fuel (diesel + natural gas) particle matter and CO2 emissions of a heavy-duty diesel engine during transient operation

2013 ◽  
Vol 153 (2) ◽  
pp. 3-11
Author(s):  
Pedro Barroso ◽  
Xavier Ribas ◽  
Mario Pita ◽  
Judith Do
Keyword(s):  
Diesel Engine ◽  
Natural Gas ◽  
Dual Fuel ◽  
Transient Operation ◽  
Heavy Duty ◽  
Particle Matter ◽  
Heavy Duty Diesel Engine ◽  
Unburned Hydrocarbons ◽  
Heavy Duty Diesel ◽  
The Impact

The aim of this study is to describe the impact on particle matter and co 2 emissions of converting an existing heavy-duty diesel engine for on-highway truck applications to a dual-fuel engine (diesel + natural gas), especially in transient operation. A dual-fuel engine with homogeneous gas charge injection in the intake line before turbocharger was considered. The results showed the feasibility of this kind of technology for transient operation reaching a significant reduction of particle matter plus a decrement in co 2 emissions at the expense of a small decrement of brake fuel conversion efficiency and an increment of unburned hydrocarbons in the exhaust gases.

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