Cookie Notice

This website uses cookies to ensure you get the best experience on our website. By using this site you agree to the use of cookies. We also use Google Analytics for statistical purposes. By selecting "Accept" you agree to the use of cookies by the Google web analysis service. Learn more about our Data Protection Policies.
Air Compressor

Air Compressor

Navigation:

The Component Air Compressor

The component Air_Compressor represents a universal model of a compressor for generating compressed air.

Component Template

The Air_Compressor.e-ctpl component template is located in the Component template library folder Compressed Air Supply.

Integration Into a Scheme

How the Component Works

The tutorials 40 and 41 demonstrate how the component Air Compressor works.

The simulation optimizes the operating mode of the Air Compressor.

Air Compressors can be connected in parallel.

The Technical input data contain several options (see following figure).

First select how the energy conversion is to be specified in the drop-down list under the heading Design of energy conversion (see following figure).

The form adapts accordingly.

Characteristic Curve for Auxiliary Units

A separate characteristic curve can be specified for the auxiliary units (see following figure) because this usually cannot be mapped proportionally to the operating point of the compressor.

Heat Recovery

Heat recovery can be optionally selected by clicking on the green plus symbol (see following figure).

The following input field then opens.
Two additional heat pins appear on the Air Compressor component on the scheme to connect the compressor to a heating net (see following figure).
If heat recovery is selected, you must ensure that the heat is dissipated. If the heat is not to be utilized, an Emergency Cooler can be used for this purpose (see illustration above).

Polytropic Compression

The relationship between flow rate and electrical power is determined by the characteristic curve in the design variables. The outlet pressure of the air when it leaves the compressor is determined by the connected compressed air network.

The physical relationship between outlet pressure and deliverable volume flow is mapped via the polytropic compression process. The polytropic exponent that must be maintained under the operating conditions is calculated on the basis of the nominal conditions entered in the Input data of the Air Compressor. This is used to calculate the Polytropic efficiency and the Maximum flow rate at polytropic compression. These two values are displayed in the Technical output data under the heading Operating parameters (see following figure).

The maximum flow rate that can be delivered with polytropic compression does not necessarily match the maximum flow rate (Nominal norm volume flow) stored in the Input data.
The Maximum flow rate at polytropic compression depends on the operation.

The Maximum flow rate at polytropic compression changes, for example, with the Nominal pressure and the Outlet temperature, which can be specified with time series.

If the volume flow is greater than the Maximum flow rate at polytropic compression, a warning appears asking you to check the input data.

Control of the Volume Flow       

The ratio of the power consumption to the volume flow is specified in the Technical input data with a characteristic curve. Speed control or step-by-step control can be mapped here by selecting the characteristic curve.

Back To Top