Effect of new cooling system in a diesel engine on engine performance and emission characteristics
- Authors
- 최경욱; 김기범; 이기형
- Issue Date
- Apr-2009
- Publisher
- Society of Automotive Engineers
- Keywords
- Automotive manufacturers; Thermoelectric equipment; Engine performance; Low speed; Steel metallurgy; Gas emissions; Cooling systems; Coolant temperature; High temperature; Engines; Machine design; Drive cycles; Diesel engines; Cooling strategy; Coolants
- Citation
- SAE 2009 World Congress Proceeding
- Indexed
- SCOPUS
- Journal Title
- SAE 2009 World Congress Proceeding
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/41300
- DOI
- 10.4271/2009-01-0177
- ISSN
- 1946-3936
- Abstract
- Automotive manufacturers and engineers have paid attention to promoting engine performance with low emissions satisfying many emission regulations. With such goals in mind, we have investigated new cooling strategies such as high coolant temperature control, fast warm-up and post cooling using an automotive cooling system controlled by electronic actuators. The cooling system in a 2.7 liter HSDI engine was modified for the purpose of this study, and an engine experiment was carried out on a New European Drive Cycle (NEDC). The conventional water pump was decoupled from the engine and electronically controlled by a BLDC motor. Valves were installed at the coolant pathways between the engine and cooling components. Overall, this modification led to a reduction in both fuel consumption and exhaust gas emissions (e.g. THC, CO). The reduction was particularly considerable at the low speed and low load-drive conditions by controlling high temperature of the coolant. In addition, independent operation of the water pump along with the coolant flow control using valves reduced warm-up time during cold start which contributed to a decrease in harmful emissions and fuel consumption. © 2009 SAE International.
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Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
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