HEAT TRANSFER REGIMES IN THE COOLANT PASSAGES OF A DIESEL ENGINE CYLINDER HEAD

Abstract
An investigation aimed at identifying the heat transfer regimes present in the valve bridge coolant passages of a diesel engine cylinder head is reported. An inverse heat conduction method utilizing experimental results along with a finite-element model was developed and applied. The sensitivity of the results to uncertain boundary conditions is discussed and found to be minimal. Locations where local boiling occurs were identified.