This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Exhaust Port Heat Rejection in a Piston Engine a Preliminary Report
Annotation ability available
Sector:
Language:
English
Abstract
While it is well known that engine exhaust temperature has an exponential effect on the thermal oxidation of carbon monoxide and unburned hydrocarbons and that the exhaust temperatures of seemingly similar engine designs vary markedly, little is known regarding the effect of exhaust port design on exhaust temperature. This paper describes an experimental program currently in progress that defines the magnitude of heat loss in exhaust ports and the effect of some geometric design variables and of several exhaust port liner designs on exhaust heat loss. The paper reveals that a port designed for minimum heat transfer may result in a 250°F increase in exhaust gas temperature. These results indicate a significant reduction in radiator requirements as well as for greatly improved thermal reactor performance.
Recommended Content
Technical Paper | Pulsair-a Method for Exhaust System Induction of Secondary Air for Emission Control |
Technical Paper | Transient Performance Development on Dissociated Methanol Fueled Passenger Car |
Technical Paper | Heat Radiation in D.I. Diesel Engines |
Authors
Citation
Rush, J., "Exhaust Port Heat Rejection in a Piston Engine a Preliminary Report," SAE Technical Paper 760766, 1976, https://doi.org/10.4271/760766.Also In
References
- Purins E. “Pre-chamber Stratified Charge Engine Combustion Studies.” SAE 741159
- Lahiff J. E. Albertson W. C. “Volume and Temperature Influences on the Effectiveness of Lean Thermal Reactors.” SAE 741168
- Spindt R. S. “Air-Fuel Ratio from Exhaust Gas Analysis.” SAE 650507
- Obert E.F. “Internal Combustion Engines and Air Pollution,” New York Intext Education Publishers 1973
- Ede A. J. “The Effect of a Right-Angled Bend on Heat Transfer in a Pipe.” International Developments in Heat Transfer 634 642 1961
- Hires S. “An Analytical Study of Exhaust Gas Heat Loss in a Piston Engine Exhaust Port.” SAE 760767