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Proceedings of Symposium on Energy Engineering in the 21<sup>st</sup> Century (SEE2000) Volume I-IV

ISSN:
1-56700-132-7 (Print)

OPTIMIZATION OF A HYDROGEN FUELED LARGE BORE COMPRESSION IGNITION ENGINE: DEVELOPMENT OF A NEW VARIABLE INJECTION SYSTEM FOR HIGH PRESSURE GAS INJECTION

Peter Prechtl
Lehrsruhl A fur Thermodynamik Technische Universitat Munchen, Germany

Dorer
Lehrsruhl A fur Thermodynamik Technische Universitat Munchen, Germany

Franz Mayinger
Lehrstuhl A für Thermodynamik, Technische Universität München, München, Germany; Technical University, Hannover, FRG Institut fur Verfahrenstechnik

Abstract

In the research project "Directly Injecting Hydrogen Diesel Engine with High Power Density and Low Emissions", the basis for the use of a large bore diesel engine fueled with hydrogen was investigated. The project partners were the MAN B&W Diesel AG [1], the Lehrsruhl fur Verbrennungskraftmaschinen und Kraftfahrzeuge (LVK) and the Lehrsruhl A fur Thermodynamik (LAT). The LAT investigated mixture formation, ignition and combustion processes with modern optical measurement techniques, in a newly developed rapid compression machine (RCM) and with numerical simulations. The investigations delivered a set of suitable thermodynamic parameters for the operation of the engine. In addition, optimized geometries for the nozzle design were found out. A new concept for a high pressure hydrogen injection system with variable needle lift was setup and investigated.