East Hooghly Poly Plast Pvt Ltd, India

East Hooghly Poly Plast Pvt Ltd, India

A Case Study : Epoch 2.0 HVLS 16-ft Fan By Falco eMotors Inc.
Report No. 042820-03

Saving on Electricity

2 X

Get 2 x Airflow

<35 dBA

Lowest sound in the World

Key Facts


  • Direct Drive PMSM Motor;
  • Lowest Weight;
  • Active Power Factor Corrected;


  • Industrial


  • India.


  1. East Hooghly Polyplast company manufactures supplies and exports comprehensive range of Tarpaulin that is used in various Types of applications.

  2. The company aims to provide a comfortable and productive environment for employees and machines. However, the facility manager receives complaints from employees about very hot or very cold conditions.

  3. Insufficient air circulation and temperature difference in most parts of the working area of the production shop had an effect on comfort and productivity of the employees.

  4. It was important for them to solve their comforting questions without compromising on energy efficiency.

  5. They were struggling to find an effective solution to their hot and cold spot problem.


  • Epoch 2.0, 16-ft Fan were installed with the following specifications ;
    • Motor: Epoch 2.0;
    • Coverage Area: 12,000 Sq. Ft. (1,114 Sq. m);
    • Speed: 95 RPM;
    • Peak Power: 1.1 kW/1.5 hp;
  • Epoch 2.0, 16 ft diameter five-bladed fan is cost effective and provide massive air movement.

Site Survey

A site survey is mandatory before any HVLS fan recommendation. The survey revealed the following dimensions:

  • Total Area: 85 Ft X 35 Ft = 2,975‬ Sq. Ft.
  • Floor to Ceiling Distance: 24 to 27 ft,
  • By a rule of thumb distance/1.5 gives us the approximate fan diameter.
  • In this case, we chose to go with a 16-ft fan.

Site Measurements

Fans and coverage area

Test Reports

Three test reports are collected for each fan installation as follows:

Power Consumption Report

Power consumption report captures the real as well as apparent power. Epoch HVLS fans are the only fans in the world to have active power factor correction and unity power factor. Therefore the Watts (Real Power) and VARs (the apparent power) are almost the same. The power has been captured at 55, 65, 75, 85, and 95 RPM. Power drawn at those speeds are 394, 582, 695, 857, and 996 W respectively. The chart above also shows trend lines generated using Excel for real and apparent power to take into account any measurement errors as fan power consumption can be modeled by well known equations.

Input Current Report

The input current is also measured at 55, 65, 75, 85, and 95 RPM. Input current is recorded as 1.7, 2.6, 3.0, 3.9, and 4.8 A respectively. The input voltage varied from 230 to 240V during the measurement.

Air Flow Report.

The airflow is measured from the center of the fan and is recorded at every 3-ft distance. Values were recorded upto 27-ft from the center of the fan. The values were respectively, 310, 334, 394, 491, 520, 456, 460, 368, and 356 ft/min at distances of 3,6,9,12,15,18,21, 24, and 27-ft respectively.

Finished Installation

This is the picture of the finished installation.