A model was developed to predict aerosol behavior in rooms. The EPA report describing this work is in preparation. Innovative Spray Nozzle Design Purdue University has developed and demonstrated an innovative spray nozzle design for use with precharged aerosol containers. This design is similar to one previously developed and demonstrated at Purdue for pump and trigger-dispensed aerosol products. Laser diffraction measurements made at Purdue indicate that the new dispenser design produces product droplets in the desired size range.
Data also show that air consumption is below target values and supply pressures are acceptable.
Dispenser performance is relatively insensitive to product formulation, as described by its viscosity and surface tension. This simplifies manufacturing since a single dispenser design can be used with a wide array of products. Research at Purdue addressed three questions necessary to provide rational design guidelines to industry. Pulsed holography and PIV were used to acquire the necessary data to answer these questions. The objective of this project was to characterize indoor air emissions from composite wood products and to identify and evaluate pollution prevention approaches for their manufacture that may reduce indoor emissions.