A Case Study : Epoch HVLS 14-ft Fan By Falco eMotors Inc.
Report No. 041420-03

Problem:

1. Consul Neowatt design, manufacture and supply of a full range of power conditioning & power back-up products, services and solutions - Online UPS, Industrial Inverters, Solar Inverters, Industrial Systems, Stabilizers, Isolation Transformers, Active Harmonic Filters, Static Transfer switches and customized power electronic solutions.

2. In the summer there is heat in the Chakan area, with no movement of air, therefore the workers feel uncomfortable.

3. Pune-based Consul Naval Power Pvt Ltd needs to resolve the Air Movement issue for a new manufacturing facility. When a customer is willing to invest with an energy-efficient cooling system.

4. Falco eMotors offered an EPOCH HVLS 14 ft fan as a solution for them. Peoples at Consul Neowatt was extremely pleased with the performance of the Epoch HVLS fan.

 

Solution:

• Epoch 2.0, 14-ft Fan was installed with the following specifications ;
• Motor: Epoch 2.0;
• Coverage Area: 8000 Sq. Ft. (743 Sq. m);
• Speed: 120 RPM;
• Peak Power: 1.1kW/1.5 hp;

• Epoch 2.0-14 ft diameter five-bladed fan is durable, 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: 104 ft X 89 ft = 9,256‬ Sq. ft.
• Floor to Ceiling Distance: 20 to 24 ft
• By a rule of thumb distance/1.5 gives us the approximate fan diameter. 
• In this case, we chose to go with a 14-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 80, 90, 100, 110 and 120 RPM. Power drawn at those speeds are 330, 425, 575, 780, and 920W 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 80, 90, 100, 110 and 120 RPM. Input current is recorded as 1.4, 1.9, 2.4, 3.1 and 3.9A respectively. The input voltage varied from 232 to 243V 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, 360, 410, 480, 510, 530, 490, 370, 410, 390, 360 ft/min at distances of 3,6,9,12,15,18,21,24,27 and 30-ft respectively.

 

Estimated Yearly Savings while Using Epoch HVLS Fans:

Epoch 14-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 $409 to $2,915 per year over any competitive brands because of its unique technology.

 Finished Installation:

Above is the picture of the finished installation.