The Effects of Fan Nozzles Orifice Wear on Flow Rate and Spray Pattern

Autor:	István Sztachó-Pekáry
Rok vydání:	2004
Předmět:	Environmental Engineering Materials science business.industry Mechanical Engineering Nozzle Structural engineering Industrial and Manufacturing Engineering Volumetric flow rate Minor axis Operation time Flow coefficient Composite material business Wear measurement Body orifice
Zdroj:	Progress in Agricultural Engineering Sciences. 1:7-29
ISSN:	1787-0321 1786-335X
Popis:	The effects of nozzle wear on the flow rate and spray pattern of fan nozzles made of different materials and of different nominal capacities were investigated. A mathematical model was developed to predict the orifice wear rate. Variables affecting nozzle wear rate in the model are operation time, initial orifice size, and orifice material. Equations were developed for relationships between operation times and changes in flow rates through the tips. There was good agreement between predicted and measured flow rate. The percentage increase in flow rate for all tips varied approximately with the square root of the operation time. Wear measurements for new and worn orifices showed that wear mainly increased the minor axis length of the elliptical orifice. Nominal capacity and construction material have a considerable influence on wear rate of the tips. During the wear process the width of the spray pattern remained nearly constant but worn nozzles delivered higher liquid volumes in the center of the spray pattern.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee6ba098fbac1d06e8397c26c4b5a854 https://doi.org/10.1556/progress.0.2004.1.2 Zobrazit plný text záznamu