Author: Mukesh Kumar Choudhary, Mohit Kumar, Gopal Carpenter, Annu Rani, Malkhan Singh Jatav and E.V. Thomas
There is evidence that weeds and pest combinedly can decrease crop production by 33% if left untreated. Chemical application is the most effective and efficient method to overcome this issue. The current practice preferred by the farmers leads to excessive application of the chemical to the crop to reduce the loss of production. The excessive application of chemical affects the human health, environment, soil and it also increase the cost of cultivation. Therefore, selection of right nozzle is crucial for ensuring effective and efficient spray application with minimum ill effects. Hollow cone nozzles are widely used in spray applications, and it is important to understand the operational parameters of these nozzles to optimize their design and performance. In this study, the effect of different nozzle pressure (215.74, 245.17, 274.59, 304.01 and 333.45 kPa) and orifice diameters (1, 1.3, 1.6 and 2 mm) on the discharge rate, spray angle, and spray distribution of hollow cone nozzles was investigated using a spray patternator. The nozzle pressure and orifice size had a significant effect on the discharge rate, spray angle. The discharge rate and spray angle varied from 536 to 1500 ml/min and 52 to 90° with variation in pressure and orifices diameter for selected range of variables. The spray pattern of the nozzle at all four orifices diameters was also studied. The study could help in determining the optimum orifice diameter and nozzle pressure for required discharge rate and spray angle.
Spray discharge, Spray distribution, Hollow cone nozzle, Nozzle orifice size
The hollow cone nozzles were evaluated for different combination of pressure and orifice diameter. The result indicated that the orifice diameter and pressure of nozzle affect the operational parameters such as discharge rate, spray angle and spray distribution. As pressure and orifice diameter increases the discharge rate, spray angle and spray swath of liquid spray also increased. The increment in the orifice diameter is more effective to get more discharge rate than pressure. The effect of orifice size of nozzle and pressure on spray distribution showed that there is a direct relationship between the orifice size and the spray distribution. An increase in orifice size resulted in a wider spray distribution, while a decrease in orifice size resulted in a narrower spray distribution. Furthermore, the experiments also showed that an increase in pressure resulted in a narrower spray distribution, while a decrease in pressure resulted in a wider spray distribution. These findings are important for the design and optimization of spray systems used in various applications such as agriculture, industrial processes, and fire suppression. In order to achieve a desired spray distribution, it is crucial to carefully consider the size of the nozzle orifice and the pressure used in the spray system.
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Mukesh Kumar Choudhary, Mohit Kumar, Gopal Carpenter, Annu Rani, Malkhan Singh Jatav and E.V. Thomas (2023). Investigation of Nozzle Characteristics for a Hollow Cone Nozzle in Spray Patternator. Biological Forum – An International Journal, 15(1): 638-642.