Browse Publications Technical Papers 2009-24-0156
2009-09-13

DEVELOPMENT OF COOLING CHARACTERISTICS OF UREA-WATER SOLUTION DOSING MODULES FOR AUTOMOTIVE SCR SYSTEMS 2009-24-0156

International regulations are challenging automotive industry to develop more efficient systems for reducing diesel engines NOx emissions. Selective Catalytic Reduction systems may be a concrete solution, in fact SCR systems are already on the market, firstly developed for heavy duty diesel engine applications, and now it is beginning the spreading to light automotive applications.
The urea-water solution dosing module may be subjected to strong heat transfer, so an efficient heat dissipation is crucial step to avoid injector's severe damages, as deformations of internal components or solenoid's fault. To have a system less complex and consequently less expensive, the dosing module air cooling should be preferred to liquid cooling. Obtain an efficient heat dissipation from the injector holder unit can represent a hard task: consequently dosing module design must be careful.
In this paper is presented an experimental and numerical analysis for different possible solutions to be implemented in order to ensure in all conditions an efficient heat dissipation. Particular attention is paid to thermal characteristics of materials and to peculiar heat transfer paths that can be set-up and exploited to fulfill the task. In this paper are discussed the different design solutions considered and respective performance.

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 17% 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

Analysis of Transient Thermal and Conversion Characteristics of Dual-Monolith Catalytic Converter with Palladium and Palladium/Rhodium Catalysts

2007-01-3453

View Details

JOURNAL ARTICLE

Applicable Diesel Oxidation Catalyst for Multi-Diesel Exhaust System

2014-01-1511

View Details

TECHNICAL PAPER

Numerical Investigation of Soot Formation and Oxidation Under Diesel Engine Conditions

952357

View Details

X