Annex60.Fluid.Sensors.PPM

# .Annex60.Fluid.Sensors.PPM

Ideal one port trace substances sensor outputting in parts per million

## Information

This model outputs the trace substance concentration in ppm contained in the fluid connected to its port. The sensor is ideal, i.e., it does not influence the fluid.

The parameter `MM` is the molar mass of the trace substance. For a list of molar masses, see Modelica.Media.IdealGases.Common.SingleGasesData and Modelica.Media.IdealGases.Common.FluidData.

Read the Annex60.Fluid.Sensors.UsersGuide prior to using this model with one fluid port.

#### Assumptions

This sensor assumes that the concentration C of the medium is in mass fraction. Otherwise, the conversion to ppm will be wrong.

## Revisions

- December 16, 2015, by Michael Wetter:
  Revised implementation, corrected error in the molar fraction which used the inverse ratio.
- December 2, 2015, by Filip Jorissen:
  First implementation.

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