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DiMethyl Ether (DME) has been shown to be a very promising alternative fuel, which offers low emissions and good economy when directly injected into the cylinder of diesel cycle engines. However, as it is a liquified gas, it poses special demands in terms of storage and handling. Over the last few years, AVL has been developing fuel injection and handling systems for DME so that its full potential can be realised. This paper describes the choice of fuel injection system, describes its function and control as well as present test results. In addition, the future outlook for DME as a fuel in transportation will be discussed.

The paper describes a universally structured simulation platform which is used for the analysis and prediction of combustion in compression ignition (CI) engines. The models are on a zero-dimensional crank angle resolved basis as commonly used for engine cycle simulations. This platform represents a kind of thermodynamic framework which can be linked to single and multi zone combustion models. It is mainly used as work environment for the development and testing of new models which thereafter are implemented to other codes. One recent development task focused on a multi zone combustion model which corresponds to the approach of Hiroyasu. This model was taken from literature, extended with additional features described in this paper, and implemented into the thermodynamic simulation platform.