3D Printed Impeller Testing: Optimizing Blower Design and Performance

• 0:00 3D Printed Impeller: The video features a 3D-printed impeller for a blower, with a housing made separately.
• 0:16 Impeller Design: The impeller design was created in SketchUp and printed. The creator decided to reduce the impeller size by 10%
• 0:36 Construction and Setup: The creator built a testing setup, including a box for the impeller, an anemometer, and a pressure sensor. The motor's RPM is increased in steps of 200 RPM.
• 0:12 Screws: The video uses screws to hold the box together.
• 1:34 Testing Parameters: The creator plans to use a Raspberry Pi to gather data from an anemometer, pressure sensor, and smart plug to determine flow and power draw.
• 3:02 Baseline Data: Data was collected using a paddle wheel. The tests included measuring inflow, outflow with an anemometer.
• 3:23 Power Readings: The creator expresses some uncertainty about the accuracy of smart plug readings.
• 3:53 Power Supply Efficiency: The power supply's efficiency was determined to be fairly good.
• 4:03 No-Load Test: The creator performed no-load tests on the motor.
• 4:22 RPM Curve: The creator saw a fairly expected RPM cubed curve.
• 4:32 Impeller Testing: The impeller was tested, manually recording DC input and output.
• 5:09 Impeller Performance: The impeller moved more air at the same RPM as the paddle wheel but required more power.
• 5:29 Efficiency Gain: The creator calculated the efficiency gain and found the impeller provided 30% more power.
• 6:04 Reversed Impeller: The creator tests the impeller with the vanes facing backwards.
• 6:46 Backwards Facing Test: The backwards facing impeller consumed dramatically more power.
• 6:59 Performance Comparison: The flow rate was considerably lower with the backwards-facing impeller.
• 7:08 Power Consumption: The power consumption of the backwards facing impeller compared to the forward facing impeller.
• 7:38 Efficiency Loss: The creator found that with forward facing fins, only 17% efficiency was lost.
• 7:52 Restricted Airflow: The creator tested with restricted airflow.
• 8:10 Flow Rate: The flow rate was much lower.
• 8:15 Power Usage: The power usage difference was substantial.
• 8:26 Data Issues: The creator notes there was some data issues.
• 8:41 Efficiency: The highest efficiency was with forward facing fins and restricted airflow.
• 8:52 Aerodynamic Efficiency: Forward facing fins were shown to be more aerodynamic than backwards facing fins
• 9:06 Turbulence: Backwards facing fins cause a lot of turbulence.
• 9:11 Recommended Design: The creator recommends using forward-facing fins.
• 9:29 Blower Types: The video discusses different blower types, including those from dehumidifiers, furnaces, and vacuum cleaners.
• 9:57 Impeller Design: The impeller creates fairly high pressure.
• 10:10 Impeller Designs: The design of the impellers.
• 10:16 Dust Collector: The creator mentions that dust collectors are somewhere in between.
• 10:23 Dust Collector Impeller: The creator discusses what type of impeller to use in a dust collector.