Housing Water Jacket Model

Housing water jacket cooling is when a fluid is passed down ducts in the housing as shown below:

In order to use a Housing Water Jacket a housing type that is suitable for a flow of liquid along ducts in the housing should be chosen using the Housing Type selector this can be either the Water Jacket (Axial), Water Jacket (Spiral) or Axial Fins(Covered) housing type as shown below.

In addition there is often some extra dissipation from the outside of the motor housing by Natural Convection and Radiation.

The fluid passing through the machine can be air or any other fluid.

Housing Water Jacket cooling system of the machine is enabled by selecting the Housing Water Jacket option from the Cooling Options. The cooling system can be used with either housing flow or with stator duct flow.

The Housing Water Jacket Duct dimensions are set in the Radial Cross Section Editor and Axial Cross Section Editor.

The model is then set up using the Housing Water Jacket Flow Options [Input Data Editor], Housing Water Jacket Heat Transfer [Input Data Editor] and Housing Water Jacket Fluid Flow [Input Data Editor tabs.

The housing water jacket calculation is broken down into the following 2 steps:

1. The fluid flow through the machine is calculated.

1. Once the flow in the machine is known, the local velocities and heat transfer coefficients (using the standard enclosed channel convection correlations) are calculated. (see Enclosed Channel Convection Correlation for details).

See Housing Water Jacket [Output Data] for the calculation results.