Development of a charge transfer space loop to improve adsorption performance in aerial electrostatic spray

Denan Zhao,Shizhou Wang,Weiguo Shen,Abhishek Dixit,Yubin Lan

doi:10.25165/j.ijabe.20201305.5531

Abstract

In order to solve the problem of insufficient adsorption rate of droplets on the target back via aerial electrostatic spray, this study proposed a high-voltage electrostatic generator to charge the liquids in two isolated water tanks with positive and negative charges respectively. A charge transfer loop was developed in space between the aerial electrostatic spray system and the ground. This method greatly enhanced the adsorption performance under outdoor conditions that 16.7% droplets density increased on the target front, a nearly fourfold destiny increased on the target back compared with the conventional UAV spray system. The target back-to-front ratio of droplet density was improved from 6.1% to 25.7%, which validated the satisfactory performance of the developed system. Keywords: aerial electrostatic spray, electrostatic adsorption, charge transfer loop, back deposition, droplet, development DOI: 10.25165/j.ijabe.20201305.5531 Citation: Zhao D N, Lan Y B, Shen W G, Wang S Z, Dixit A. Development of a charge transfer space loop to improve adsorption performance in aerial electrostatic spray. Int J Agric & Biol Eng, 2020; 13(5): 50–55.

Highlights

In order to solve the problem of insufficient adsorption rate of droplets on the target back via aerial electrostatic spray, this study proposed a high-voltage electrostatic generator to charge the liquids in two isolated water tanks with positive and negative charges respectively
This method greatly enhanced the adsorption performance under outdoor conditions that 16.7% droplets density increased on the target front, a nearly fourfold destiny increased on the target back compared with the conventional unmanned aerial vehicle (UAV) spray system
Using fixed-wing aircraft or unmanned aerial vehicle (UAV) to spray pesticides is not restricted by terrain and has high operating efficiency, which is widely applied in many countries and regions in the world[8,9,10,11]

Summary

Introduction

In order to solve the problem of insufficient adsorption rate of droplets on the target back via aerial electrostatic spray, this study proposed a high-voltage electrostatic generator to charge the liquids in two isolated water tanks with positive and negative charges respectively. A charge transfer loop was developed in space between the aerial electrostatic spray system and the ground This method greatly enhanced the adsorption performance under outdoor conditions that 16.7% droplets density increased on the target front, a nearly fourfold destiny increased on the target back compared with the conventional UAV spray system. The electrostatic spray has a smaller droplet size, which can make the droplets atomize evenly, increase target deposition, and improve contact opportunities with pests. This can greatly reduce the use of pesticides and improve the utilization rate[1,2,3,4,5,6,7]. Yu et al.[27] suggested that plants can be artificially provided with electricity opposite to charged droplets, but this method was inefficient and limited on the ground

Methods

Results

Conclusion