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Details on the Components Table

Information about the Components table in the calculation dialog for ventilation.

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AssistantsVentilation / Drawing typeCalculationCalculation

Table for pressure loss calculation

The table shows the calculation data of all components contained in the selected section part.

Column

Description

No.

Component number.

Type

Component type:

L: Pipe

Name

Name of the component.

l

Length of the duct or installation lengths of the component, respectively.

a, b, c, d

d1, d2, d3, d4

Inlet, outlet and branch dimensions of fittings and air ducts. For rectangular or oval components the dimensions are output with the letters a - d, for round components with d1 - d4.

R

R-value for straight pipes or ducts.

l*R

Pressure loss due to pipe friction.

Zeta

Zeta value of component.

dp

Total of all pressure losses from pipe friction, zeta value or single resistance.

dpFP

Static pressure recovery.

dpA

Total pressure loss of this component.

Table for sound level calculation

Column

Description

No.

Component number.

Type

Component type

Name

Name of the component.

l

Length of the duct or installation lengths of the component, respectively.

a, b, c, d

d1, d2, d3, d4

Inlet, outlet and branch dimensions of components. For rectangular or oval components the dimensions are output with the letters a - d, for round components with d1 - d4.

Octave frequency bands

Unweighted sound power level of all eight octave bands for this component.

Residual dB

Unweighted sound power level at the end of the component.