Effects of electrode voltage, liquid flow rate, and liquid properties on spray chargeability of an air-assisted electrostatic-induction spray-charging system

Maski, Devanand; Durairaj, Divaker

doi:10.1016/j.elstat.2009.12.001

Cited by 81 publications

(39 citation statements)

References 26 publications

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“…Therefore, for electrostatic charging be effective, besides the droplet diameter being of no more than 150 micrometers (µm), which is in agreement with obtained in the study (Table 2), it is necessary that the amperage used is between 300 and 500µA and voltages between 6.000 -9.000 V, to prevent the charge/mass ratio (Q/M) is below the desired (SCHRÖDER, 2002). According to MASKI & DURAIRAJ (2010), charge/ mass ratio (Q/M) is extremely important in electrostatic spraying, because it determines the relative ability of electric forces to overcome the forces of gravity and kinetic energy transmitted to drops.…”

Section: Resultsmentioning

confidence: 99%

Pesticide drift from aircraft applications with conical nozzles and electrostatic system

et al. 2016

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Despite all advances obtained with the pesticide use worldwide and in Brazilian agriculture, there is still a lack of technologies for agricultural aircrafts. The objective of this study was to evaluate the drift produced by the use of conical nozzles and electrostatic system in aircraft application. The experimental design was completely randomized with a factorial arrangement and four replications. Treatments included two spraying equipment: electrostatic system with 5L ha-1 of spray volume and conical nozzle with 15 and 20L ha-1. In all treatments, azoxystrobin fungicide was used at a dose of 100g a.i. ha-1 and paraffinic mineral oil at a dose of 0.5% v.v. Volume median diameter (VMD) and droplet density were estimated using water sensitive paper. Evaluations of drift distance were performed with glass collectors distributed horizontally on the soil surface, 50m before the application band, at the application site and 12,5, 25, 50, 75, 100, 150, 200 and 300m after the application site, along the wind direction. Azoxystrobin concentration in glasses were quantified by UHPLC-MS/MS. Results indicated that the drift distance can reach more than 300 meters away from the application site, with variable concentrations according to the equipment used. Electrostatic system reduced drift when compared to hydraulic conical nozzles.

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Section: Resultsmentioning

confidence: 99%

Pesticide drift from aircraft applications with conical nozzles and electrostatic system

et al. 2016

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“…As características do líquido pulverizado, como a tensão superficial e a viscosidade, podem interferir na pulverização eletrostática (ZHENG et al, 2002). MASKI & DURAIRAJ (2010) afirmam que a condutividade elétrica e a constante dielétrica são as duas principais propriedades elétricas que afetam grandemente a carga adquirida pelas gotas pulverizadas. Ou seja, com a adição de adjuvantes à calda, ao se alterar as propriedades do líquido, pode-se aumentar ou reduzir a eficiência do sistema eletrostático.…”

Section: Introductionunclassified

Adjuvantes nas propriedades físicas da calda, espectro e eficiência de eletrificação das gotas utilizando a pulverização eletrostática

Sasaki

Teixeira

Santiago³

et al. 2014

Cienc. Rural

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“…These requirements may be partly satisfied by using air-assisted electrostatic sprayers, which produce a stream of electrostatically charged fine droplets having trajectories guided and governed by electrostatic force fields, though not automatically in the desired manner (Maski and Durairaj, 2010). Electrostatic forces may be used both to atomise a liquid surface, so producing a highly charged stream of fine droplets, or to produce a finer and more uniform spray when a liquid is atomised mechanically (Vieri, 2002;Esehaghbeygi et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

An innovative pneumatic electrostatic sprayer useful for tendone vineyards

Pascuzzi

Cerruto

2015

J Agricult Engineer

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The aim of this note is to analyse the features of the ESS 150 RB14 electrostatic sprayer, an innovative model compared to the standard air-assisted sprayers traditionally used by Apulian growers (Southern Italy) in tendone vineyards. The experimental tests showed that the activation of the electrostatic system produced a significant increase in the mean deposit, but it was located only on the foliar layer of the canopy closer to the sprayer. However this result should also imply an increase in the deposits on the bunches when the electrostatic system is activated, even if further tests are necessary to verify this expectation. If this will be substantiated, the electrostatic sprayer ESS 150 RB14 would be suitable for the targeted applications usually performed in tendone table grape vineyards.

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Effects of electrode voltage, liquid flow rate, and liquid properties on spray chargeability of an air-assisted electrostatic-induction spray-charging system

Cited by 81 publications

References 26 publications

Pesticide drift from aircraft applications with conical nozzles and electrostatic system

Pesticide drift from aircraft applications with conical nozzles and electrostatic system

Adjuvantes nas propriedades físicas da calda, espectro e eficiência de eletrificação das gotas utilizando a pulverização eletrostática

An innovative pneumatic electrostatic sprayer useful for tendone vineyards

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