Browse Publications Technical Papers 2009-01-0841
2009-04-20

Performance of a Heavy Duty DME Engine - the Influence of Nozzle Parameters on Combustion and Spray Development 2009-01-0841

DME was tested in a heavy duty diesel engine and in an optically accessible high-temperature and pressure spray chamber in order to investigate and understand the effect of nozzle parameters on emissions, combustion and fuel spray concentration.
The engine study clearly showed that smaller nozzle orifices were advantageous from combustion, efficiency and emissions considerations. Heat release analysis and fuel concentration images indicate that smaller orifices result in higher mixing rate between fuel and air due to reductions in the turbulence length scale, which reduce both the magnitude of fuel-rich regions and the steepness of fuel gradients in the spray, which enable more fuel to burn and thereby shorten the combustion duration.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Investigation on Effect of Offset Orifice Nozzle on Diesel Combustion Characteristics

2020-01-2038

View Details

TECHNICAL PAPER

PIV Investigation of High Swirl Flow on Spray Structure and its Effect on Emissions in a Diesel-Like Environment

2011-01-1286

View Details

TECHNICAL PAPER

A Study on Combustion and Emission Characteristics of Small DI Diesel Engine Fuelled with Dimethyl Ether

2008-32-0025

View Details

X