New chemigation droplet generator for foliar pesticide application

Waldir A. Marouelli, Peter M Waller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new droplet generation system for chemigation of foliar pesticides removes water from the irrigation pipeline, increases water pressure with a pump, injects oil-pesticide into the water stream, increases dispersion velocity in small tubes with high velocity in order to break up oil-pesticide droplets, and finally injects the water-oil dispersion back into the irrigation pipeline. Droplet breakup research was reviewed, and a model was developed to predict oil-pesticide maximum droplet size. Two equations were required: one for droplets in the inertial subrange scale, and one for droplets at the large eddy scale. The model was evaluated against 5 data sets in the literature and compared to 3 existing models. For the new model, maximum relative error and average root mean square deviation for maximum droplet size were 40- and 17-%, respectively.

Original languageEnglish (US)
Title of host publicationPaper - American Society of Agricultural Engineers
Editors Anon
PublisherASAE
Volume2
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3) - Minneapolis, MN, USA
Duration: Aug 10 1997Aug 14 1997

Other

OtherProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3)
CityMinneapolis, MN, USA
Period8/10/978/14/97

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ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Marouelli, W. A., & Waller, P. M. (1997). New chemigation droplet generator for foliar pesticide application. In Anon (Ed.), Paper - American Society of Agricultural Engineers (Vol. 2). ASAE.