Information

The Pump model represents the compression of a fluid in a turbo or volumetric machine. It is a lumped model based on performance curves where pump speed is set as an input.

The assumptions for this model are:

• No dynamics ( it is considered negligible when compared to the one characterizing the heat exchanger).
• No thermal energy losses to the environment
• Isentropic efficiency based on empirical performance curve
• Mass flow rate based on empirical performance curve

Modelling options

In the General tab the following options are available:

• PumpType: select between different performance curves for isentropic and volumetric efficiencies.
• PumpInput: switch the input between frequency and flow fraction