Steady-State Engine Testing of γ-Alumina Catalysts Under Plasma Assist for NOx Control in Heavy-Duty Diesel Exhaust

2003 ◽  
Author(s):  
C. L. Aardahl ◽  
K. G. Rappé ◽  
P. W. Park ◽  
C. S. Ragle ◽  
C. L. Boyer ◽  
...  
Keyword(s):  
Steady State ◽  
Diesel Exhaust ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Nox Control ◽  
Engine Testing ◽  
Alumina Catalysts

Speciation of Heavy Duty Diesel Exhaust Emissions under Steady State Operating Conditions

1996 ◽  
Author(s):  
Mridul Gautam ◽  
Deepak Gupta ◽  
Laila EI-Gazzar ◽  
Donald W. Lyons ◽  
Sriram Popuri
Keyword(s):  
Steady State ◽  
Diesel Exhaust ◽  
Exhaust Emissions ◽  
Operating Conditions ◽  
Heavy Duty ◽  
Heavy Duty Diesel

Prediction of In-Use Emissions of Heavy-Duty Diesel Vehicles from Engine Testing

2002 ◽  
Vol 36 (2) ◽  
pp. 270-275 ◽  
Author(s):  
Janet Yanowitz ◽  
Michael S. Graboski ◽  
Robert L. McCormick
Keyword(s):  
Heavy Duty ◽  
Diesel Vehicles ◽  
Heavy Duty Diesel ◽  
Engine Testing

68. Investigation of Particulate-Associated Formaldehyde in Heavy-Duty Diesel Exhaust

1999 ◽  
Author(s):  
J. Freeman ◽  
J. Lee ◽  
D. Lillquist ◽  
A. Suruda
Keyword(s):  
Diesel Exhaust ◽  
Heavy Duty ◽  
Heavy Duty Diesel

Cycle-Controlled Water Injection for Steady-State and Transient Emissions Reduction From a Heavy-Duty Diesel Engine

2008 ◽  
Vol 130 (3) ◽  
Author(s):  
Rudolf H. Stanglmaier ◽  
Philip J. Dingle ◽  
Daniel W. Stewart
Keyword(s):  
Steady State ◽  
Diesel Engine ◽  
Fuel Efficiency ◽  
Water Injection ◽  
Heavy Duty ◽  
Engine Operation ◽  
Southwest Research Institute ◽  
Trade Offs ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

A system for coinjecting mixtures of diesel fuel and water into a heavy-duty diesel engine has been developed and evaluated at the Southwest Research Institute. This system features prototype Lucas electronically controlled injectors, full electronic control, and can vary the percentage of water in the mixture on a cycle-resolved basis. Tests of this system were conducted on a production Volvo D-12 engine, and have produced reduced NOx and smoke emissions over steady-state and transient conditions. Water-diesel coinjection yielded a considerable improvement in NOx-smoke and NOx-BSFC trade-offs under steady-state engine operation. In addition, control of the water percentage on a cycle-resolved basis was shown to be an effective method for mitigating NOx and smoke emissions over step-load transients. Results from this work show that a combination of aggressive EGR and diesel+water coinjection is very promising for producing very low levels of engine-out exhaust emissions, reducing the water storage requirements, and improving fuel efficiency. Further refinement of this injection technology is in progress.

Reduction of Heavy-Duty Diesel Exhaust Particle Number and Mass at Low Exhaust Temperature Driving by the DOC and the SCR

2012 ◽  
Vol 5 (3) ◽  
pp. 1114-1122 ◽  
Author(s):  
Panu Karjalainen ◽  
Topi Ronkko ◽  
Tero Lahde ◽  
Antti Rostedt ◽  
Jorma Keskinen ◽  
...  
Keyword(s):  
Diesel Exhaust ◽  
Particle Number ◽  
Diesel Exhaust Particle ◽  
Heavy Duty ◽  
Exhaust Temperature ◽  
Heavy Duty Diesel

Cycle-Controlled Water Injection for Steady-State and Transient Emissions Reduction From a Heavy-Duty Diesel Engine

2004 ◽  
Author(s):  
Rudolf H. Stanglmaier ◽  
Philip J. Dingle ◽  
Daniel W. Stewart
Keyword(s):  
Steady State ◽  
Diesel Engine ◽  
Fuel Efficiency ◽  
Water Injection ◽  
Heavy Duty ◽  
Engine Operation ◽  
Southwest Research Institute ◽  
Trade Offs ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

A system for co-injecting mixtures of diesel fuel and water into a heavy-duty diesel engine has been developed and evaluated at the Southwest Research Institute. This system features prototype Lucas EUI injectors, full electronic control, and can vary the percentage of water in the mixture on a cycle-resolved basis. Tests of this system were conducted on a production Volvo D-12 engine, and have produced very encouraging results. Water-diesel co-injection yielded a considerable improvement in NOx-smoke and NOx-BSFC trade-offs under steady-state engine operation. In addition, control of the water percentage on a cycle-resolved basis was shown to be an effective method for mitigating NOx and smoke emissions over step-load transients. Results from this work show that a combination of aggressive EGR and diesel+water co-injection is very promising for producing very low levels of engine-out exhaust emissions, reducing the water storage requirements, and improving fuel efficiency. Further refinement of this injection technology is in progress.

Effect of Lubricant on the Formation of Heavy-Duty Diesel Exhaust Nanoparticles

2005 ◽  
Vol 39 (21) ◽  
pp. 8497-8504 ◽  
Author(s):  
Kati Vaaraslahti ◽  
Jorma Keskinen ◽  
Barouch Giechaskiel ◽  
Anu Solla ◽  
Timo Murtonen ◽  
...  
Keyword(s):  
Diesel Exhaust ◽  
Heavy Duty ◽  
Heavy Duty Diesel
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