Fuel-Property-Independent Injection Technology

ABSTRACT:This project will develop fuel injection technology that is inherently insensitive to variation in liquid physical properties. Generally physical properties can impact the injector discharge coefficient which in turn impacts liquid velocity and mass flow for a given injector pressure drop. Under certain circumstances, the discharge coefficient can be made to be insensitive to these properties. Hence the approach taken is to modify the injector configuration to consistently behave as it would under these certain circumstances. Extensive experimental and simulation work will be used to create configurations with a wide range operation under these conditions.BENEFIT:The benefits of this development will be injectors for fuel or other fluids which have no dependency on liquid physical properties. This will result in reduced variation in injection velocity and associated penetration. The conditions that will be targeted are also expected to provide improved atomization behavior which has potential benefit for many combustion systems.