Spray Deposit Patterns of an Electrostatic Atomizer

Almekinders, H.; Ozkan, H. E.; Reichard, D. L.; Carpenter, T. G.; Brazee, R. D.

doi:10.13031/2013.28741

Cited by 27 publications

(12 citation statements)

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“…Higher air pressure drew more EO water through the sprayer and increased its volumetric flow rate. Almekinders et al. (1992) reported that volume median diameters of spray droplets increased with volumetric flow rate of electrostatic atomizers.…”

Section: Effect Of Spraying On a Low‐chlorine Concentration Eo Watermentioning

confidence: 99%

“…Higher air pressure drew more EO water through the sprayer and increased its volumetric flow rate. Almekinders et al (1992) reported that volume median diameters of spray droplets increased with volumetric flow rate of electrostatic atomizers. They also indicated that, the larger the droplet diameter the smaller the surface area to volume ratio, and thus the less amount of chlorine that could be vaporized.…”

Section: Effect Of Spraying On a Low-chlorine Concentration Eo Watermentioning

confidence: 99%

“…Most conventional sprays apply hydraulically atomized droplets of typically 300-600 lm volume median diameter, however, these methods had poor surface coverage, inefficient droplet deposition, and excessive rebound and runoff of spray (Law & Cooper, 2001). In recent years, electrostatic forces have been applied to spray to enhance energy efficiency, reduce resource input and environmental-pollutant output, and improve overall product quality and economic competitiveness (Giles & Blewett, 1991;Almekinders et al, 1992;Law et al, 1992). Kirk (1999) reported that an electrostatically charged spraying system was able to reduce spray drift and can reduce the volume of spray per unit area when compared with conventional systems.…”

Section: Introductionmentioning

confidence: 99%

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Effect of spraying on chemical properties and bactericidal efficacy of electrolysed oxidizing water

Hsu

Kim

Hung

et al. 2004

Int J of Food Sci Tech

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Summary A three‐factor, three‐by‐three‐by‐two‐level factorial designs were used for studying the effects of air pressure, sprayer orifice size and electrostatic charge of a spray gun on pH, oxidation‐reduction potential (ORP), electric conductivity and residual chlorine of electrolysed oxidizing (EO) waters with either low (9 mg L−1) or high concentration (88 mg L−1) of chlorine. Results indicated that a smaller orifice produced higher reduction in ORP and chlorine concentration than larger orifices. Electrostatic charge, in general, did not cause a significant reduction in chlorine concentration. High air pressure spray retained more chlorine and gave a higher ORP than low air pressure. EO water with high initial chlorine concentration achieved at least a 3–4 log10 CFU mL−1 reduction in Listeria monocytogenes populations when sprayed with the spray gun, while spraying with a commercial backpack sprayer or a poly‐tank sprayer eliminated Listeria population (9.4 log10 CFU mL−1 reductions) completely. These results demonstrated that although spraying reduced the chlorine in EO water by 20–97%, application of EO water through spraying has potential for reducing bacteria in food‐processing operations.

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Section: Effect Of Spraying On a Low‐chlorine Concentration Eo Watermentioning

confidence: 99%

Section: Effect Of Spraying On a Low-chlorine Concentration Eo Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of spraying on chemical properties and bactericidal efficacy of electrolysed oxidizing water

Hsu

Kim

Hung

et al. 2004

Int J of Food Sci Tech

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“…Considerando-se que: a taxa de eletrificação das gotas decresce, à medida que o diâmetro mediano volumétrico (DMV) aumenta; que este fenômeno é inerente a todas as técnicas de eletrificação de gotas (Almekinders et al, 1992); e, ainda, que o DMV das gotas produzidas pela ponta AXI 11003 equivale a 199 µm, supõe-se que a menor taxa de eletrificação aliada ao maior volume aplicado (400 L ha -1 ) e à maior vazão dessa ponta, entre as pontas de pulverização em teste, tenham sido decisivos para não terem sido constatadas diferenças nos depósitos com e sem eletrostática, no ápice da planta.…”

Section: Resultsunclassified

“…comparativamente aos depósitos obtidos com gotas desprovidas de carga elétrica (Hislop, 1988;Kabashima et al, 1995), além de o uso da força eletrostática reduzir a capacidade das gotas de penetrar no dossel de plantas densas (Almekinders et al, 1992). A ponta de pulverização TXVK-3, com gotas de menor DMV e providas de carga elétrica, proporcionou níveis três vezes maiores de depósitos, em relação às demais pontas de pulverização no ápice da planta (Tabela 3).…”

Section: Resultsunclassified

Pontas de pulverização e eletrificação das gotas na deposição da calda em plantas de crisântemo

Serra

Chaim

Raetano

2008

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a deposição das gotas de pulverização, dotadas de carga elétrica (eletrostática), em comparação à técnica de pulverização convencional em crisântemo, com uso de diferentes pontas de pulverização. O experimento foi conduzido em delineamento inteiramente ao acaso, com oito tratamentos: combinação das pontas TXVK-3, AXI 110015, AXI 12002 TWIN e AXI 11003, com duas técnicas de pulverização (com e sem eletrostática), e quatro repetições. Cada repetição foi representada por 12 plantas, às quais foram afixados papéis do tipo mata-borrão na superfície abaxial e adaxial dos folíolos, e em duas posições da planta: ápice e base. Um corante marcador (Rodamina B) foi pulverizado na proporção de 5 g por 100 L d'água em cada um dos tratamentos. Os depósitos do marcador foram quantificados por fluorometria. As pontas com gotas de menor diâmetro mediano volumétrico (TXVK-3 e AXI 110015) apresentaram maiores depósitos na superfície abaxial da folha, quando se utilizou a pulverização eletrostática. Esse fato não foi observado, quando foram pulverizadas gotas com maior diâmetro mediano volumétrico e desprovidas de carga elétrica, nas diferentes partes da planta.Termos para indexação: Dendranthema grandiflora, eletrostática, plantas ornamentais, tecnologia de aplicação. Nozzles and droplets with electric charge on spray deposition in chrysanthemum plantsAbstract -The aim of this work was to evaluate the spray deposition with electric charge (electrostatic), compared to conventional application technique (without electric charge), on chrysanthemum plants using different spray nozzle types. The experiment was carried out entirely at random, with eight treatments: TXVK-3, AXI 110015, AXI 12002 TWIN and AXI 11003 spray nozzles were combined in two spraying techniques (with and without electrostatic) and four replications. Each replicate was represented by 12 chrysanthemum plants. Blotting paper was placed on the abaxial and adaxial surfaces of two leaves, in different positions of the plants: top and bottom. A tracer dye (Rodamina B) was applied in the ratio 5 g 100 L -1 water, in each one of the treatments. Deposits of the tracer dye were quantified by fluorometry. The spray nozzles with droplets of the smallest volumetric medianum diameter (TXVK-3 e AXI 110015) showed greater deposits in the abaxial surface of the leaves, when the electrostatic spraying was used. This fact was not observed, when droplets of the greatest volumetric medianum diameter and without electric charge were deposited in different parts on chrysanthemum plant.

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Aerial application methods control spider mites on corn in Kansas, USA

Martin

Latheef

2019

Exp Appl Acarol

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Spray Deposit Patterns of an Electrostatic Atomizer

Cited by 27 publications

References 0 publications

Effect of spraying on chemical properties and bactericidal efficacy of electrolysed oxidizing water

Effect of spraying on chemical properties and bactericidal efficacy of electrolysed oxidizing water

Pontas de pulverização e eletrificação das gotas na deposição da calda em plantas de crisântemo

Aerial application methods control spider mites on corn in Kansas, USA

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