Performance of knapsack sprayer: effect of technological parameters on nanoparticles spray distribution
 |
International Journal of Engineering Trends and Technology (IJETT) | 
|
| © 2017 by IJETT Journal | ||
| Volume-46 Number-4 |
||
| Year of Publication : 2017 | ||
| Authors : Majid Hazim Reshaq Alheidary |
||
| DOI : 10.14445/22315381/IJETT-V46P235 |
Citation
Majid Hazim Reshaq Alheidary "Performance of knapsack sprayer: effect of technological parameters on nanoparticles spray distribution", International Journal of Engineering Trends and Technology (IJETT), V46(4),199-207 April 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
Iraqi farmers are currently used knapsack sprayers
in their applications with a low cost to control
diseases in vegetables and trees. Laboratory and
field tests were carried out to study performance of
knapsack sprayer after its modification to determine
the optimal spray deposit on the target at different
settings to control the flowrate at the time of
application. A knapsack sprayer of 16 liters capacity
was modified using existing materials in markets
and its performance evaluated. Tests were done with
conical dual tip nozzle. White papers cards were
utilized to measure droplet characteristics. All
measurements were made at different nozzle heights
of 50, 70, and 90 cm, different operating pressure
were without pressure gauge, 15, 25, and 30 psi.
The main results showed that droplet distribution
was proportional to nozzle heights and operating
pressures. Increasing nozzle heights and operating
pressure cause an effect in droplet distribution and
spray deposit. A high spray deposit was observed at
nozzle height of 50 cm and operating pressure of 30
psi. Operating pressure has greater influence on
droplet size than nozzle height. Increasing operating
pressure from 15psi to 30psi led to decrease in
droplet size of 13.62%.
References
[1]FAO.http://www.fao.org/fileadmin/templates/wsfs/docs/expert
_paper/How_to_Feed_the_World_in_2050.pdf.
[2]Godfrey, L.D., 2014. The contributions of pesticides to pest
management in Metting the Global need for food production by
2050. Council for Agricultural Science and Technology, Issue
paper 55, 28 pp.
[3]Gil,Y.; Sinfort, C., 2005. Emission of pesticides to the air
during sprayer application: A bibliographic review. Atmospheric
Environment 39, 5183-5193.
[4]Franzen, M., 2007. Programme to reduce the risks connected
with the use of pesticides in Sweden. In: SuproFruit, 9th
Workshop on spray Application Techniques in Fruit Growing,
PP.1-7.
[5]ASAE S572.1. 2009. Spray nozzle classification by droplet
spectra. Am. Soc.Agric. Eng.St.Joseph, MI.,4 pp.
[6]Kent, J.; Early, R., 1999. Spray drift fact sheet. Pesticide
Application in vineyards. 2nd edition
[7]Salyani, M.; Farooq, M.; Sweeb, R. D., 2007. Spray deposition
and mass balance in citrus orchard applications. Transactions of
the ASABE, 50, 1963-1969.
[8]Giles, D. K.; Akesson, N. B.; Yates, W. E., 2008. Pesticide
application technology: research and development and the growth
of the industry. Transactions of the ASABE, 51, 397-403.
[9]Zhu, H.; Salyani, M.; Fox, R. D., 2011. A portable scanning
system for evaluation of spray deposit distribution. Computers
and Electronics in Agriculture, 76, 38-43.
[16]Ozkan, H. E.; Womac, A., 2016. Best management practices
for boom spraying. The Ohio State University, College of Food,
Agricultural and Environmental Sciences.
[17]Cai, S.S.; Stark, J.D., 1997. Evaluation of five fluorescent
dyes and triethyl phosphate as atmospheric tracers of agricultural
sprays. Journal of Environmental Science and Health Part BPesticides
Contaminationts and Agricultural Wastes 32, 969-983.
Keywords
Knapsack sprayer, nozzle height,
operating pressure, droplet size diameter, deposit,
coverage.