Placa de orifícios
Geometry given
Determine orifice diameter

Input data

Flow

Diameter

Number of orifices

Orifice diameter

Output data

Head loss

Description

Evaluating and designing orifice plates is a key process in flow systems, commonly used to measure flow rate or regulate pressure in pipelines. Orifice plates act as a flow restriction, creating a pressure drop that can be used to calculate flow or control head loss. The precise design of these plates ensures proper system performance and efficiency.

 

Orifice plate

Calculation methods

Geometry given

This method calculates head loss based on the provided geometric parameters and flow rate. Head loss occurs due to the restriction created by the orifices in the plate, which leads to energy dissipation.

ParameterStandard unitsDescription
Flowm³/sVolumetric flow rate through the pipe
DiametermmPipe diameter
Number of orifices-Number of orifices on the plate
Orifice diametermmDiameter of each orifice

Output

ParameterStandard unitsDescription
Head lossmAmount of energy dissipated in the system due to flow restriction
Flowl/sFinal volumetric flow rate after calculating head loss

Determine orifice diameter

This method determines the orifice diameter based on the desired flow rate, pipe diameter, and head loss. It is useful for designing custom orifice plates to meet specific system requirements.

ParameterStandard unitsDescription
Flowm³/sVolumetric flow rate through the pipe
DiametermmPipe diameter
Number of orifices-Number of orifices on the plate
Head lossmAmount of energy dissipated in the system

Output

ParameterStandard unitsDescription
Orifice diametermDiameter of the orifice calculated to meet the head loss specification
Flowl/sFinal volumetric flow rate

References

  • MILLER, Donald S. Internal flow systems. London, BHRA Fluid Engineers, 1984.