The automatic selection of hydraulic spray nozzles based on the psychrometric air conditions in hydropneumatic sprayers

The automatic selection of hydraulic spray nozzles based on the psychrometric air conditions in hydropneumatic sprayers

According to Maciel et al. According to Queiroz & Reis (2015), it is essential conducting continuous studies about techniques capable of minimizing agricultural losses caused by water evaporation in hydraulic applications to help reducing costs and environmental contamination. [...]the aim of th...

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Bibliographic Details
Published in:Revista Ceres Vol. 67; no. 1; pp. 9 - 15
Main Authors: Sasaki, Robson Shigueaki, Brito, Ana Cláudia de, Alvarenga, Cleyton Batista de, Teixeira, Mauri Martins, Rocha, Helton John Alves
Format: Journal Article
Language:English
Published: Vicosa Universidade Federal de Viçosa-UFV, Revista Ceres 01-02-2020
Universidade Federal de Viçosa
Universidade Federal De Viçosa
Subjects:
AGRICULTURE, MULTIDISCIPLINARY
Contamination
Control algorithms
Digital cameras
Droplets
droplets evaporation
droplets spectrum
Electronic systems
Evaporation
Humidity
Hydraulics
Laboratories
Nozzles
Response time
Sensors
Software
Spray nozzles
Spraying
Sprays
VPD
Water vapor
Brazil
droplets spectrum
droplets evaporation
VPD
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Summary:According to Maciel et al. According to Queiroz & Reis (2015), it is essential conducting continuous studies about techniques capable of minimizing agricultural losses caused by water evaporation in hydraulic applications to help reducing costs and environmental contamination. [...]the aim of the current study was to develop an electronic system capable of automatically replacing hydraulic spray nozzles in hydropneumatic sprayers, based on the psychrometric air conditions at spraying time and evaluate the system developed for technical parameters and spray quality. [...]we set the water vapor saturation pressure deficit in the air (Equation 3). .. [...]the sprayer was left with two semi-arcs: one equipped with hydraulic nozzles presenting hollow-cone profile and medium-to-fine droplets (JA-2 model, Jacto®, Pompéia, SP, Brazil) and the other with air-induction hydraulic nozzles presenting hollow-cone profile and coarse to extremely coarse droplets (CVIA-015 model, MagnoJet®, Ibaiti, PR, Brazil) (Figure 2B).
ISSN:0034-737X
2177-3491
2177-3491
DOI:10.1590/0034-737x202067010002