Spray Nozzle Designs for Agricultural Aviation Applications.
Abstract
One of the difficult problems in the field of agricultural aviation is to accurately and uniformly apply chemicals to target areas. An atomizer capable of producing uniform drops has a high probability of overcoming this problem. A comprehensive literature survey was performed on existing techniques for generating a spray of uniformly sized drops and on information regarding chemicals currently used in agricultural aviation spray applications. In addition, new concepts for producing a uniform spray were generated and conceptually designed. The result of the literature survey shows that among the available techniques, periodic dispersion of liquid jet, spinning disk method, and ultrasonic atomization are most promising, in that order. Subsequently, ideas for three additonal, previously untried techniques were generated. These are based on classification of the drops using centrifugal force, on using two opposing liquid-laden air jets, and on operating a spinning disk at an overloaded flow. Estimates of operational characteristics were made, but due to the predictive and exploratory nature of the proposed techniques, eventual verification of the soundness and probability of extending the proposed techniques into a practical atomizer may require experimental tests on a laboratory scale. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 18, 1979
- Accession Number
- ADA077039
Entities
People
- A. A. Putnam
- J. A. Gieseke
- J. A. Hale
- K. W. Lee
- M.. N. Golovin
Organizations
- Battelle Memorial Institute