| ELECTRIC
MOTORS & GENERATORS |
|
| Cooling
System Design |
| Objectives
|
- Understand the flow & thermal interactions
- Predict winding temperatures
|
| Analysis
Approach |
| 1-D System Analysis |
- Flow analysis of the cooling system
- Heat transfer analysis
|
Objective
|
- Provide a design sensitivity analysis
- Identify major design parameters to improve
cooling
|
Results
|
- Percent flow losses at each branch and
component
- Mass flow split at each branch
- Overall component temperatures
|
Benefits
|
- Cost effective
- Easy to use
|
| 3-D Flow & Heat Transfer Analysis |
- Cooling fan
- Endshield
- Stator & winding
|
Objective
|
- Locate sources of major losses
- Provide flow visualization
- Provide design alternatives
|
Results
|
- Local velocity and temperature distribution
- Source of flow losses
- Validation with experimental measurements
|
Benefits
|
- Cost effective comparison of different design
alternatives
- Accurate solution
|
| Applications
|
- Electric motors
- Automotive alternators
- Industrial generators
|
| Design
Parameters |
- Fan capacity
- Velocity distribution
- Fan discharge
- Winding surface area
|
| Performance
Parameters |
- Winding temperatures
- Fan capacity
- Amount of stator material
|
| Provided
Services |
- Analysis to evaluate performance
- Engineering design to improve
- Fan capacity
- Thermal performance
- Structural integrity
- Customized software
- Inlet & exit locations
- Clearances
- Stator surface area & mass
|
