How to Reduce Energy Consumption with an HVLS Fan

September 20, 2016 by Jaylin Krell

How to Reduce Energy Consumption with an HVLS FanThe use of energy is an important concern facing today’s architectural engineers, building designers, and facility managers. Considering the nonrenewable nature of many traditional forms of energy, it’s critical that buildings and their systems are created with the goal of using as little energy as possible. HVLS fans can help reduce energy consumption in many important ways.

HVLS Fans are Designed to be Energy Efficient

Two design components, the motor and the drive, make top-notch HVLS fans energy efficient. A transverse flux motor efficiently converts electrical energy into turning energy. The second design component is the direct drive motor. The energy losses that accompany gear driven motors are completely eliminated, making direct drive motors exceptionally energy efficient. The best HVLS fans can operate for about a dollar a day.

HVLS Fans Affect HVAC Energy Consumption

Not only do HVLS fans themselves run efficiently, but they also contribute to the efficiency of HVAC systems. HVAC systems deposit conditioned air in certain areas, leaving other areas untreated. HVLS fans facilitate efficiency by thoroughly dispersing the heated/cooled air produced by the HVAC system. HVLS fans also equalize the room’s temperature by mixing up layers of the air, an effect known as thermal equalization or destratification.

Improving the efficiency of an HVAC system by spreading cold and warm air throughout a space with HVLS fans has a significant impact on operating expenses. Data from paired HVAC and HVLS applications show that they allow facility managers to reduce the operating level of their air conditioning systems by 25% or more.

Other Reasons HVLS Fans Are Valuable in Energy Efficient Buildings

  • Quiet operation: The fans won’t interfere with important work going on in a space.
  • Networking & Automation: Operators have more control over how the fans run, and automation enables efficiency operation.
  • Reverse operation: Use HVLS fans in cooler months to pull heat from the building’s upper level down to the ground where occupants reside.
  • Variety of sizes and mounts: HVLS fans can be configured and installed in almost any building type.

To maximize energy efficiency, you’ll want to choose and install an HVLS fan that delivers the appropriate amount of airflow for the shape and size of your space. It’s best to use a visualization tool (computational fluid dynamics) to see which fans will deliver airflow where you need it most.

Final Word on HVLS Fans and Energy Consumption

HVLS fans represent a cutting edge tool for climate control that can help any building stay cool or warm. They also pay a key role in decreasing energy usage in a building. Thanks to their efficient design, massive airflow and impact on HVAC systems, HVLS fans can cut down on energy consumption to make any building more environmentally friendly.

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