DOE American standard ceiling fan airflow laboratory

Technical conditions:

1、Environmental temperature control:21.1±5℃, humidity50%.Therefore, it is recommended to install the test shielding room in a room with medium air conditioning or install independent air conditioning, and control the outdoor temperature of the shielding room to be lower than21.1℃ can ensure that the testing requirements are met. This plan does not include the temperature control part of the experimental environment.

2The installation device of the ceiling fan is coaxial with the center of the ground rotation axis in the middle of the roof.

3Anemometer:12The wind speed probe is installed on a rotating arm that can rotate around the axis according to the standard installation position.

Device requirements:

1The device should comply withDOE 10 CFR Appendix U to subpart B of part 430 -2018The standard requirements for air volume testing include reasonable design, high degree of automation, convenient use, durability, load-bearing and anti vibration capabilities;

2Sample fixture (center of roof): square shaped250*250*15mm(long*wide*High)3/16 24Power cord with a circular hole in the middle of the tooth20m

3Variable frequency power supply: Power supply:0.5KAV， Voltage:100V 120V 220V 230V 240V；50Hz 60HzSwitchable.

4Control device: computer (host)+The monitor is provided by the customer and is required to be specified in the configuration list.

5Lframe Manual lifting, stepper motor steering0-90°

6Point selection: Align the center of the room with the center of the sample hole of the ceiling fan, and ensure accurate internal dimensions;

7Tachometer: Two bladed, three bladed, four bladed, and five bladed parameters automatically output data from the computer.

8Overall external dimensions of the equipment (in accordance with the standard):6.3*6.3*3.55m, internal dimensions6.1*6.1*3.35mThe standard acceptable error is0.75Within feet