The Journal of Engine Research

The Journal of Engine Research

Study of Effects of Combustion Gases and Cooling Thermal Boundary Conditions on Temperature Distribution of a Heavy Duty Diesel Engine Cylinder Head

Authors
Abstract
Cylinder head is one of the critical components of diesel engine that is subject to different thermal and
mechanical loadings. One of the cylinder head design targets is durability and high fatigue life of this part.
Thermal loading is the major loading of cylinder head in term of fatigue life assessment because leads to
thermal stress and low cycle fatigue. Therefore, the study of the effect of thermal boundary conditions on
the temperature distribution of cylinder head will assist cylinder head designer and is necessary part of
cylinder head design. In this study, the effects of thermal boundary conditions, due to combustion gases and
cooling gallery, at different engine operating conditions on the temperature distribution of a heavy duty
diesel engine cylinder head are investigated. Also, the influences of other thermal boundary conditions on
the temperature distribution of cylinder head at the critical regions are studied.
Keywords