A Case Study : Epoch HVLS 18-ft Fan By Falco eMotors Inc.
Report No. 040720-03

                                            

Problem:

1. Voltas Limited established its manufacturing facility at Sanand, Gujarat. The factory is manufacturing home appliances, including refrigerators and washing machines.

2. The manufacturing floor has a large shop floor area where assembly and production are done by both automated systems and workers. The shop floor includes appliances, inventory, and storage areas.

3. During the summer, the place is surprisingly warm even though the roof area has insulation.

4. The problem of humidity is the chance of severely damaging stored packaging and products.

5. Controlling the temperature of the plants protects the workers as well as factory productivity.

                                            

                                            

 

Solution:

• Epoch 2.0, 18-ft 07 Fans was installed with the following specifications ;
• Motor: Epoch 2.0;
• Coverage Area: 15000 Sq. Ft. (1393 Sq. m);
• Speed: 75 RPM;
• Peak Power: 1.1kW/1.5 hp;

• Epoch 2.0-18 ft diameter five-bladed fan is the best one for air circulation and  it is more efficient in power consumption

                                            

Site Survey:

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

• Total Area: 396 ft X 98 ft = 38,808‬ Sq. ft.
• Floor to Ceiling Distance: 25 to 28 ft,
• By a rule of thumb distance/1.5 gives us the approximate fan diameter. 
• In this case, we chose to go with a 18-ft fan.

                                            

Fan and Coverage Area:

                      

Test Reports:

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

1. Power Consumption Report;
2. Input Current Report;
3. Air Flow Report.

Those reports are shown for this site:

                                            

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 35, 45, 55, 65 and 75 RPM. Power drawn at those speeds are 121, 229, 330, 499 and 877W 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.

                                             

The input current is also measured at 35, 45, 55, 65 and 75 RPM. Input current is recorded as 0.625, 1.035, 1.52, 2.4, and 3.96A respectively. The input voltage varied from 230 to 240V during the measurement. 

                                            

The airflow is measured from the center of the fan and is recorded at every 3-ft distance. Values were recorded upto 30-ft from the center of the fan. The values were respectively, 177, 295, 354, 374, 354, 334, 295, 236 ft/min at distances of 3,6,9,12,15,18,21, and 24-ft respectively.

 

Estimated Yearly Savings while Using Epoch HVLS Fans

                                            

Epoch 18-ft fan was compared against Indian HVLS fan Manufacturer. Based on their data sheet, daily, monthly and yearly power consumption and costs were calculated. An Epoch HVLS fan will save the end user anywhere from $1,059 to $4,475 per year over any competitive brands because of its unique technology.

 Finished Installation:

                                            

Above is the picture of the finished installation.