The effect of exhaust gas recirculation on the combustion noise level of an indirect injection diesel engine

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:347610

Bowen, C E; Reader, G T; Potter, I J ^[1]

---

1. Univ. of Calgary, Alberta (Canada). Dept. of Mechanical Engineering

A pollutant that has not yet received as much public or regulatory attention as gaseous or solid particulate emissions is engine generated noise. Excessive levels of noise can, however, be as harmful to human health and the environment as noxious gases. In a well-designed engine, mechanical noise can be kept to a minimum but the combustion process itself still generates noise, combustion noise. Thus, if the combustion process is modified for exhaust emission control it can be expected that the level of noise generated by combustion will also be affected, albeit not necessarily adversely. As exhaust gas recirculation (EGR) is becoming an essential technology for NOx emission control in diesel engines, and, as this technique modifies the combustion process, it is important that the effects of using EGR on noise generation be identified.

• Sponsoring Organization: Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada); North Atlantic Treaty Organization, Brussels (Belgium)
• OSTI ID: 347610
• Report Number(s): CONF-970701--
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
DIESEL ENGINES
EXHAUST RECIRCULATION SYSTEMS
FUEL INJECTION SYSTEMS
MECHANICAL VIBRATIONS
NOISE POLLUTION CONTROL