A Study on the Effects of Recirculated Exhaust Gas Upon NOx and Soot Emissions in Diesel Engines with Scrubber EGR System

1999-01-3266

09/28/1999

Event
Small Engine Technology Conference & Exposition
Authors Abstract
Content
The effects of recirculated exhaust gas on the characteristics of NOx and soot emissions under a wide range of engine loads are experimentally investigated using a four-stroke, four-cylinder, indirect injection, water-cooled marine diesel engine operating at two engine speeds. The aim of this study is to develop the EGR control system for reducing NOx and soot emissions simultaneously in diesel engines. The EGR system is used to reduce NOx emissions. And a novel diesel soot-removal device with a cylinder-type scrubber for the experiment system is specially designed and manufactured to reduce soot contents in the recirculated exhaust gas to the intake system of the engine. It is found that NOx emissions decrease markedly, especially at higher loads, while soot emissions increase owing to the drop of intake and exhaust oxygen concentrations, and the rise of equivalence ratio as the EGR rate is elevated.
Meta TagsDetails
DOI
https://doi.org/10.4271/1999-01-3266
Pages
12
Citation
Bae, M., "A Study on the Effects of Recirculated Exhaust Gas Upon NOx and Soot Emissions in Diesel Engines with Scrubber EGR System," SAE Technical Paper 1999-01-3266, 1999, https://doi.org/10.4271/1999-01-3266.
Additional Details
Publisher
Published
Sep 28, 1999
Product Code
1999-01-3266
Content Type
Technical Paper
Language
English