This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
On-Vehicle Controllable Cooling Jets
Technical Paper
2004-01-0049
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A study has been undertaken to demonstrate the use and potential benefits of actively controlled coolant jets in a vehicle. Results have shown that active control of cooling jets has the potential to regulate the temperature of thermally critical areas of the cylinder head, in this case the exhaust valve bridge. In addition the temperature gradient across the head from the exhaust valves to the inlet valves is directly influenced. These capabilities offer improved control of the combustion process and enhanced durability. Furthermore the system allows heat to be rejected at much lower overall coolant flow rates than with a conventional arrangement.
The technique relies on an adequate supply of coolant at a lower temperature than that within the engine and on the availability of a suitable measurement technology within the thermally critical region.
Unlike passive precision cooling the active jets allow optimization of the cooling at all engine speed / load points.
Recommended Content
Authors
Citation
Vagenas, A., Hawley, J., Brace, C., and Ward, M., "On-Vehicle Controllable Cooling Jets," SAE Technical Paper 2004-01-0049, 2004, https://doi.org/10.4271/2004-01-0049.Also In
Heat Exchangers and Their Simulation, Thermal Management, and Fundamental Advances in Thermal and Fluid Sciences
Number: SP-1818; Published: 2004-03-08
Number: SP-1818; Published: 2004-03-08
References
- Martin, H. ‘Heat and Mass Transfer Between Impinging Gas Jets and Solid Surfaces’ Advances in Heat Transfer 13 1977
- Downs, H. T. James, E. H. ‘Jet Impingement Transfer - A Literature Survey’ American Society of Mechanical Engineers, Paper 87-HT-35 1987
- Hrycak, P. ‘Heat Transfer from Impinging Jets - A Literature Review’ Technical Report AFWALTR-81-3504 Flight Dynamics Laboratory Wringht Patterson AFB, Ohio 1981
- Vader, D. T. Incropera, F. P. Viskanta, R. ‘Local Convective Heat Transfer from a Heated Surface to an Impinging, Planar Jet of Water’ International Journal Heat Mass Transfer 34 611 623 1991
- Webb, B. W. Ma, C. F. ‘Single-Phase Liquid Jet Impingement Heat Transfer’ Advances in Heat Transfer 26 1995
- Ma, C. F. ‘Liquid Jet Impingement With or Without Boiling’ Proceedings of the 10 th National Heat Transfer Congress Genova, Italy 25 - 27 June 1992 35 60 J. Thermal Science 5 2 1993 128 131
- Nunney, M. J. ‘Light and heavy vehicle technology’ Newnes 1992
- Vagenas A Hawley JG Brace CJ Robinson K Campbell NAF Joyce S ‘Actively Controlled Cooling Jets’ SAE, 2002, Paper 2003-01-0614