Experimental and Numerical Assessment of a Multi-Cylinder Engine Exhaust Manifold

Abstract

This research presents an experimental and numerical analysis to examine the thermal loading of the exhaust manifold of a multi-cylinder gasoline engine operating under steady-state conditions. The local skin temperatures and surface heat fluxes variation are focused throughout the external surface of the exhaust manifold. A 3D modeling and simulation are employed in the numerical analysis using Solidworks software for modeling and ANSYS software for simulation. The generated numerical results are in good agreement with the measured exit gas temperatures and skin temperatures experimentally.

Modelling of single and multi-port manifolds and studying the influence of structural and thermal behaviour on exhaust manifolds used in automotive applications

“…A lot of research is being carried out in improving the performance of exhaust manifolds. As experimental tests require close attention to the low-cycle thermal fatigue parameters and strength of the material, finite element modelling methods have been employed to evaluate the life of the exhaust manifold for various mechanical and thermal loadings [17][18][19]. The focus is also on using better materials to reduce weight to provide automotive industries with an edge in achieving optimal engine design.…”