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Designing a fan requires several key data points to match the fan’s capabilities with the demands of its intended application. The critical data needed for fan design include:
1. Airflow Requirement: Measured in cubic feet per minute (CFM) or cubic meters per hour (m³/hr), it indicates the volume of air the fan needs to move within a specific time frame.
2. Static Pressure: Measured in inches of water gauge (in. wg) or Pascals (Pa), this reflects the resistance the fan will need to overcome to move air at the required rate. This includes resistance from ductwork, filters, and any other obstructions in the air path.
3. Fan Efficiency: Desired efficiency of the fan, which has implications for energy usage and cost. This may inform the design of the fan blades and motor.
4. Operating Environment: Conditions like temperature, humidity, and the presence of corrosive or flammable materials can dictate materials and design features for safety and performance.
5. Noise Level Considerations: Especially important in residential or office settings, the maximum allowable noise level may affect the choice of fan type and design characteristics.
6. Power Supply: The available power source (e.g., voltage and frequency) will dictate the electrical characteristics of the fan motor.
7. Physical Size and Weight Constraints: The available space for installing the fan and any weight restrictions for the mounting structure.
8. Duty Cycle: How long and
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Explanation: There are 3 data required in the design of fan. They are outside diameter of
fan, volume of air, hydrodynamic resistance