HVLS – High Volume Low-Speed Fans
HVLS fans are large-diameter, ceiling-mounted axial fans designed to circulate considerable volumes of air at low operational speeds. The number of blades used varies by design and manufacturers, but most manufacturers today use between three and eight blades.
A common assumption among those unfamiliar with HVLS fans is that more blades create more air movement. Therefore, if three blades do a good job moving air, then six blades should work twice as well. Performance between a three and six-bladed fan when motor power is held constant (Table 1.1)
Why use HVLS fans of Greenheck?
- Energy Efficiency: HVLS fans provide substantial airflow while consuming less power compared to conventional fans, especially when using direct-drive motors over gearbox motors. This leads to significant energy savings.
- Thermal Comfort: HVLS fans help maintain uniform temperatures by destratifying the air, which improves comfort for occupants and helps meet ASHRAE 55 standards. This can result in increased productivity.
- Safety Improvements: By reducing condensation on floors and surfaces, these fans help mitigate the risks of slips, trips, and falls, leading to fewer workplace injuries and compensation claims.
- Cost-Effectiveness: A single HVLS fan can cover large areas (up to 23,000 square feet), reducing the need for multiple smaller fans. This reduces upfront costs and long-term maintenance needs.
- Low Maintenance: Direct drive motors, favored for their quiet and efficient operation, require less maintenance than traditional gearbox systems, which have moving parts like gears and bearings that demand regular upkeep.
- Noise Reduction: Direct-drive motors produce less noise compared to gearbox motors, making them suitable for environments where quiet operation is critical.
- Improved Aesthetics: HVLS fans are increasingly being incorporated into building designs for their visual appeal, reconfigurability, and customizable paint options.
Construction Feature of Greenheck HVLS
