flowpres {AgroTech}

Flow calculation as a function of working pressure

Description

This is a function to determine the flow rate of a spray nozzle as a function of the working pressure

Usage

flowpres(q1, q2, p1, p2)

Arguments

q1

Nozzle flow 1 (L/min)

q2

Nozzle flow 2 (L/min)

p1

Nozzle pressure 1 (bar)

p2

Nozzle pressure 2 (bar)

Details

Nozzle flow 1:

q1=\frac{\sqrt{p1}}{\sqrt{p2}}*q2

Nozzle flow 2:

q2=\frac{q1}{\frac{\sqrt{p1}}{\sqrt{p2}}}

Nozzle pressure 1:

p1=(\sqrt{p2}*\frac{q1}{q2})^2

Nozzle pressure 2:

p2=(\frac{\sqrt{p1}}{(\frac{q1}{q2})})^2

Value

Returns values of flow (L/min) or pressure (bar)

Author(s)

Rodrigo Yudi Palhaci Marubayashi, [e-mail]

Gabriel Danilo Shimizu

Otavio Jorge Grigoli Abi Saab

References

ANDEF Associacao Nacional de Defesa Vegetal. Manual de tecnologia de aplicacao de produtos fitossanitarios. Campinas: Linea Creativa, 2004. 50p.

BOLLER, W.; RAETANO, C. G. Bicos e pontas de pulverizacao de energia hidraulica, regulagens e calibracao de pulverizadores de barras. In: ANTUNIASSI, U. R.; BOLLER, W. (Organizadores). Tecnologia de aplicacao para culturas anuais. Passo Fundo: Aldeia Norte; Botucatu: FEPAF, 2011. p.51-82.

SPRAYING SYSTEMS CO. Catalogo 51A-PT - Produtos de pulverizacao para agricultura. Wheaton: Spraying Systems Co., 2014. 160p.

See Also

flowrat product

Examples

flowpres(q1=NA,q2=0.80,p1=1.00,p2=2.80)
flowpres(q1=0.48,q2=0.80,p1=1.00,p2=NA)