Turbocharger Heat Transfer Modeling Under Steady and Transient Conditions

摘要: In the field of automotive propulsion, environmental issues (need for drastic reduction greenhouse gases) and diminishing fossil fuels supplies enhance need to reduce fuel consumption. To reach this goal, a possible solution is downsizing. Unfortunately, degradation transient performance engine limits expected benefits Engine manufacturers try improve turbocharger matching using simulation. However, literature experiments on test bench show that, contrary general opinions, heat transfer can influence performance. Thus it seems essential determine correlate different types phenomena occurring in turbocharger. First complete experimental characterization performed steady conditions. The results are used coefficients. Then, equivalent resistance method explained. correlations obtained then calculate all interactions within transferred surroundings each case, comparisons between numerical verify quality proposed.