Experimental Heat Flux Analysis of an Automotive Diesel Engine in Steady-State Operation and During Warm-Up 2011-24-0067
Advanced thermal management systems in passenger cars present a possibility to increase efficiency of current and future vehicles. However, a vehicle integrated thermal management of the combustion engine is essential to optimize the overall thermal system. This paper shows results of an experimental heat flux analysis of a state-of-the-art automotive diesel engine with common rail injection, map-controlled thermostat and split cooling system. Measurements on a climatic chamber engine test bench were performed to investigate heat fluxes and energy balance in steady-state operation and during engine warm-up from different engine start temperatures. The analysis includes the influence of the operating point and operating parameters like EGR rate, injection strategy and coolant temperature on the engine energy balance.
Citation: Donn, C., Zulehner, W., Ghebru, D., Spicher, U. et al., "Experimental Heat Flux Analysis of an Automotive Diesel Engine in Steady-State Operation and During Warm-Up," SAE Technical Paper 2011-24-0067, 2011, https://doi.org/10.4271/2011-24-0067. Download Citation
Christian Donn, Wolfgang Zulehner, Daniel Ghebru, Ulrich Spicher, Matthias Honzen
IFKM, Karlsruhe Institute of Technology, Audi AG
10th International Conference on Engines & Vehicles