Heat transfer in the combustion chamber of s.i. engines operating under knocking conditions has been detected and analyzed. Measurements have been carried out, cycle by cycle, on a CFR laboratory engine by means of a dedicated instrument and an original method. The relationship between heat transfer and knock intensity has been analyzed on a statistical basis, emphasizing knock intensity influence on heat transfer distribution. Moreover, the share of heat transfer more closely related to knock intensity has been highlighted: heat transfer is shown not to be significantly affected by knock intensity under light-to-medium knock conditions; on the contrary, the influence becomes evident under medium-to-heavy knock conditions.

Comparison Between Heat Transfer and Knock Intensity on a Statistical Basis / Ferraro, Carlo Vincenzo; Marzano, MARIO ROCCO; Millo, Federico; N., Bochicchio. - In: SAE TECHNICAL PAPER. - ISSN 0148-7191. - STAMPA. - (1996). ((Intervento presentato al convegno SAE International Fuel & Lubes Congress tenutosi a San Antonio (USA) nel October 1996 [10.4271/962101].

Comparison Between Heat Transfer and Knock Intensity on a Statistical Basis

FERRARO, Carlo Vincenzo;MARZANO, MARIO ROCCO;MILLO, Federico;
1996

Abstract

Heat transfer in the combustion chamber of s.i. engines operating under knocking conditions has been detected and analyzed. Measurements have been carried out, cycle by cycle, on a CFR laboratory engine by means of a dedicated instrument and an original method. The relationship between heat transfer and knock intensity has been analyzed on a statistical basis, emphasizing knock intensity influence on heat transfer distribution. Moreover, the share of heat transfer more closely related to knock intensity has been highlighted: heat transfer is shown not to be significantly affected by knock intensity under light-to-medium knock conditions; on the contrary, the influence becomes evident under medium-to-heavy knock conditions.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2498744
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