Abstract
| Language | English |
|---|---|
| Pages | 579-591 |
| Number of pages | 13 |
| Journal | Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering |
| Volume | 222 |
| Issue number | 4 |
| DOIs | |
| Status | Published - 1 Apr 2008 |
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Keywords
- Flow control
- Emission control
- Coolants
- Thermostats
- Diesel engines
- Cooling systems
- Fuel economy
Cite this
Cooling system improvements - assessing the effects on emissions and fuel economy. / Brace, Chris J; Hawley, J Gary; Akehurst, Sam; Piddock, Mitchell; Pegg, I.
In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol. 222, No. 4, 01.04.2008, p. 579-591.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cooling system improvements - assessing the effects on emissions and fuel economy
AU - Brace, Chris J
AU - Hawley, J Gary
AU - Akehurst, Sam
AU - Piddock, Mitchell
AU - Pegg, I
PY - 2008/4/1
Y1 - 2008/4/1
N2 - The work reported in this paper details an experimental study of the effects of cooling system hardware changes on diesel engine emissions and fuel economy. Experiments were performed under both steady state and transient conditions and complemented by statistical assessments. Techniques for assessing the thermal integrity of the engine as a consequence of such changes are also presented. An experimental design was constructed to investigate the effect of water pump throttling, coolant flow control through the oil cooler, and the adoption of a pressure resistive thermostat (PRT). Use of these thermal controls offers a useful trade-off between NOx and fuel economy, with a saving of around 3 per cent in b.s.f.c. for a 10 per cent NOx penalty at low load, where NOx output is less of a concern. However, these benefits were not observed during drive cycle testing
AB - The work reported in this paper details an experimental study of the effects of cooling system hardware changes on diesel engine emissions and fuel economy. Experiments were performed under both steady state and transient conditions and complemented by statistical assessments. Techniques for assessing the thermal integrity of the engine as a consequence of such changes are also presented. An experimental design was constructed to investigate the effect of water pump throttling, coolant flow control through the oil cooler, and the adoption of a pressure resistive thermostat (PRT). Use of these thermal controls offers a useful trade-off between NOx and fuel economy, with a saving of around 3 per cent in b.s.f.c. for a 10 per cent NOx penalty at low load, where NOx output is less of a concern. However, these benefits were not observed during drive cycle testing
KW - Flow control
KW - Emission control
KW - Coolants
KW - Thermostats
KW - Diesel engines
KW - Cooling systems
KW - Fuel economy
UR - http://www.scopus.com/inward/record.url?scp=43649103768&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1243/09544070JAUTO685
U2 - 10.1243/09544070JAUTO685
DO - 10.1243/09544070JAUTO685
M3 - Article
VL - 222
SP - 579
EP - 591
JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
T2 - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
SN - 0954-4070
IS - 4
ER -