Abstract

A droplet generation technique and a droplet collection technique, both of which appear to be new to the field of combustion research, have been invented. The generation technique involves cyclically pumping fuel droplets from a capillary as opposed to vibrating a capillary from which a jet of fuel issues in steady flow. Uniform size droplets have been generated between 10 and 100 Hz. The droplet collection technique involves a water-filled probe. The droplets pass through a water meniscus into the probe. A model of unsteady droplet vaporization which includes internal droplet motion and transient droplet heating has been developed. This model predicts vaporization rates and is of special value to the heavy alternate fuels.

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