Institute of Internal Combustion Engines Engine design and simulation, combustion technologies, and experimental evaluation The focus of the Instiute of Internal Combustion Engines in 2015 was to n connect theoretical and experimental methods of thermodynamic research on combustion processes. Optical measurement techniques are a powerful way of visualizing gas Prof. Dr.-Ing. flow, fuel injection and combustion Georg Wachtmeister inside the cylinder of an engine. High temperatures and pressures Contact are challenges for the construction of optically accessible engines. Phone +49.89.289.24101 A highlight was the completion and first operation of a new 5 l single cylinder re- search engine with full optical accessibility through the piston bowl. The engine offers insight to modern combustion systems for gas and industrial engines. The results are used to validate CFD calculations of gas flow, injection, and combustion in order to predict the in-cylinder processes. This helps to save time and costs for future cylinder gas engine developments. LVK 5 l optical single Combustion Technologies CFD Simulation – Emission Reduction Injection Technology – – lation results are used to design improved geometries of the combustion chamber CFD calculation of prechamber engine or injector nozzles and are then validated on one of our 13 engine test benches. The reduction of engine emissions and fuel Engine out emissions are measured by consumption are drivers for the means of up-to-date FTIR technology improvement of combustion technology. and a modern particle counting system. Engines for gasoline, diesel, and natural We use component test benches to gas are developed and built at the institute evaluate hydraulic behaviour and spray and are available for industrial or public parameters of fuel injectors. Simulative funded research projects. A key com- and experimental tools allow fast and petence for the realization of our engine effective optimization of both emission concepts is the application of professional behaviour and engine efficiency. Test runs CFD simulation software, which is used on the research engines are planned and to predict and optimize the gas exchange evaluated with statistical methods (design phase, in-cylinder swirl, tumble or turbu- of experiments, DOE) to reduce time and lence, and the phases of fuel injection, costs for the testing procedure. mixture formation, and combustion. Simu- Projects
Institute of Internal Combustion Engines Engine design and simulation, combustion technologies, and experimental evaluation n The focus of the Instiute of Internal Combustion Engines in 2015 was to connect theoretical and experimental methods of thermodynamic research on combustion processes. Optical measurement techniques are a powerful way of visualizing gas flow, fuel injection and combustion inside the cylinder of an engine. High temperatures and pressures are challenges for the construction of optically accessible engines. A highlight was the completion and first operation of a new 5 l single cylinder re- search engine with full optical accessibility through the piston bowl. The engine offers insight to modern combustion systems for gas and industrial engines. The results are used to validate CFD calculations of gas flow, injection, and combustion in order to predict the in-cylinder processes. This helps to save time and costs for future Prof. Dr.-Ing. Georg Wachtmeister Contact Phone +49.89.289.24101 developments. LVK 5 l optical single cylinder gas engine Combustion Technologies – CFD Simulation – Emission Reduction – Injection Technology CFD calculation of prechamber engine The reduction of engine emissions and fuel consumption are drivers for the improvement of combustion technology. Engines for gasoline, diesel, and natural gas are developed and built at the institute and are available for industrial or public funded research projects. A key com- petence for the realization of our engine concepts is the application of professional CFD simulation software, which is used to predict and optimize the gas exchange phase, in-cylinder swirl, tumble or turbu- lence, and the phases of fuel injection, mixture formation, and combustion. Simu- lation results are used to design improved geometries of the combustion chamber or injector nozzles and are then validated on one of our 13 engine test benches. Engine out emissions are measured by means of up-to-date FTIR technology and a modern particle counting system. We use component test benches to evaluate hydraulic behaviour and spray parameters of fuel injectors. Simulative and experimental tools allow fast and effective optimization of both emission behaviour and engine efficiency. Test runs on the research engines are planned and evaluated with statistical methods (design of experiments, DOE) to reduce time and costs for the testing procedure. Projects
40-Wachtmeister-Institute_of_Internal_Combustion_Engines-2015.docx