Report No. 032220-01
- Direct Drive PMSM Motor
- Lowest Weight
- Active Power Factor Corrected
- Industry: Industrial
- Location: India
- Product: Epoch 14-ft 5-Blades 120 RPM HVLS Fan with Epoch 2.0 Motor and Controller – 90Nm / 1.1kW / 1.5 hp
Problem
- The Exhibition Hall at Nehru Science Centre is used for exhibitions of Government science projects and student science projects.
- Large numbers of visitors attend exhibitions which blocks airflow and increases heat inside the hall.
- Such arrangements create significant airflow obstruction causing discomfort to visitors.
- Air conditioning was outside the budget so the technical officials looked for an alternative cooling solution.
Solution
- Epoch 2.0 – 14-ft HVLS fans (03 units) were installed.
- Motor : Epoch 2.0
- Coverage Area : 8,000 sq.ft (743 sq.m)
- Speed : 120 RPM
- Peak Power : 1.1 kW / 1.5 hp
- Epoch 2.0 14-ft fans provide excellent airflow and high airflow efficiency.
A site survey is mandatory before recommending HVLS fan installation. The survey revealed the following dimensions.
- Total Area : 183 ft × 48 ft = 8,784 sq.ft
- Ceiling Height : 20–24 ft
- Fan Diameter Rule : Distance / 1.5
- Recommended Fan Size : 14-ft
Power Consumption Report
Power consumption captures both real and apparent power. Epoch HVLS fans feature active power factor correction and operate close to unity power factor. Measurements were taken at 80, 90, 100, 110 and 120 RPM. Power consumption values were 330 W, 420 W, 575 W, 790 W and 920 W respectively.
Input Current Report
Input current was measured at 80, 90, 100, 110 and 120 RPM. Recorded values were 1.4 A, 1.9 A, 2.4 A, 3 A and 3.8 A respectively while supply voltage varied between 230 V and 240 V.
Air Flow Report
Airflow measurements were taken every 3 ft from the fan center up to 30 ft. Recorded airflow values ranged between 590 ft/min near the center and 340 ft/min at the farthest measurement point.
This is the picture of the finished installation.
