Presentation Type
Oral
Track
Precision Ag/Biological Sciences Application
Abstract
Self-propelled sprayers are commonly used in agriculture to disperse agrichemicals. These sprayers commonly have two boom wings with dozens of nozzles that disperse the chemicals. Automatic boom height systems reduce the variability of agricultural sprayer boom height, which is important to reduce uneven spray dispersion if the boom is not at the target height.
A computational model was created to simulate the spray dispersion under the following conditions: a) one stationary nozzle based on the measured spray pattern from one nozzle, b) one stationary model due to an angled boom, c) superposition of multiple stationary nozzles due an angled boom, and d) superposition of multiple nozzles given the inputs of measured boom heights and the position of the sprayer over a field in time.
The effect of boom leveling on spray dispersion was compared for three boom leveling systems on two sprayers (Systems A and B on a John Deere R4045, Systems B and C on an AGCO RoGator 1100C). For each boom leveling system, the measured boom height and sprayer position in time for one run was used (medium terrain course at 26 kph (16 mph)) [Burgers et al. Appl. Eng. Agric. 2021]. For each run, a coverage map was calculated with the measured boom heights and a reference level boom; the spray application error was calculated as the difference between them.
The area for which the application error was less than 10% was 34.4 and 56.6% for Systems A and B on the R4045, respectively, and 45.0 and 59.3% for Systems C and B on the RoGator, respectively. This model can be used to quantify and compare coverage maps from boom leveling systems.
Start Date
2-7-2023 9:50 AM
End Date
2-7-2023 10:50 AM
Included in
Agriculture Commons, Computer-Aided Engineering and Design Commons, Numerical Analysis and Scientific Computing Commons
Session 2: The Effect of Boom Leveling on Spray Dispersion
Pheasant Room 253 A/B
Self-propelled sprayers are commonly used in agriculture to disperse agrichemicals. These sprayers commonly have two boom wings with dozens of nozzles that disperse the chemicals. Automatic boom height systems reduce the variability of agricultural sprayer boom height, which is important to reduce uneven spray dispersion if the boom is not at the target height.
A computational model was created to simulate the spray dispersion under the following conditions: a) one stationary nozzle based on the measured spray pattern from one nozzle, b) one stationary model due to an angled boom, c) superposition of multiple stationary nozzles due an angled boom, and d) superposition of multiple nozzles given the inputs of measured boom heights and the position of the sprayer over a field in time.
The effect of boom leveling on spray dispersion was compared for three boom leveling systems on two sprayers (Systems A and B on a John Deere R4045, Systems B and C on an AGCO RoGator 1100C). For each boom leveling system, the measured boom height and sprayer position in time for one run was used (medium terrain course at 26 kph (16 mph)) [Burgers et al. Appl. Eng. Agric. 2021]. For each run, a coverage map was calculated with the measured boom heights and a reference level boom; the spray application error was calculated as the difference between them.
The area for which the application error was less than 10% was 34.4 and 56.6% for Systems A and B on the R4045, respectively, and 45.0 and 59.3% for Systems C and B on the RoGator, respectively. This model can be used to quantify and compare coverage maps from boom leveling systems.