Effects of Nozzle Spray Angle on Droplet Size and Velocity / W. Clint Hoffmann, Bradley K. Fritz, William E. Bagley, Greg R. Kruger, Ryan S. Henry, Zbigniew Czaczyk
- Conference Author
- 33rd Symposium on Pesticide Formulation and Delivery Systems: ¿̐ưSustainability: Contributions from Formulation Technology¿̐ư (33rd : 2012 : Atlanta, GA)
- Physical Description
- 1 online resource (12 pages) : illustrations, figures, tables
- Additional Creators
- Kruger, Greg R., Bagley, William E., Clint Hoffmann, W., Czaczyk, Zbigniew, Fritz, Bradley K., Henry, Ryan S., American Society for Testing and Materials, and ASTM International
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License restrictions may limit access. - Summary
- Spray applicators have many choices in selecting a spray nozzle to make an application of an agricultural product. They must balance flow rate, spray pressure, and nozzle type and setup to deliver their agrochemical in the right droplet size for their particular needs. Studies were conducted to determine the spray exit angle and droplet velocity from three different flat fan nozzles (80¿̐ư, 40¿̐ư, and 20¿̐ư) at three different spray pressures (140, 280, and 420 kPa). Each combination of nozzle and pressure was evaluated in a wind tunnel with airspeeds of 35.7, 53.6, 62.6, 71.5, and 80.5 m/s. At the nozzle exit, droplet velocities for the three nozzles tested were approximately 14, 20, and 25 m/s (~30, 45, and 56 mph) for spray pressures of 140, 276, and 415 kPa (20, 40, and 60 psi), respectively. Droplet velocities were constant across the entire flowfield measured with airstreams speed were 35.7 m/s (80 mph), but as the airstream speed increased, droplets at the end of the spray sheet were quickly accelerated. The data presented will allow applicators and researchers to select the nozzle and operating conditions that best suit their spraying needs.
- Dates of Publication and/or Sequential Designation
- Volume 2014, Issue 1569 (June 2014)
- Subject(s)
- Other Subject(s)
- ISBN
- 9780803175792 (e-ISBN)
9780803175785 - Digital File Characteristics
- text file PDF
- Bibliography Note
- Includes bibliographical references 29.
- Other Forms
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition. - Reproduction Note
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2014. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details
- Mode of access: World Wide Web.
- Source of Acquisition
- ASTM International PDF Purchase price USD25.
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