Encyclopedia

Underfloor air distribution

Underfloor air distribution

A system using an underfloor plenum (that is, the open space between the structural concrete slab and the underside of a raised floor system) to deliver conditioned air directly into the occupied zone of the building. Air is delivered through supply outlets typically located at floor level or integrated as part of the office furniture and partitions. Return grilles are located above the occupied zone. This upward convection of warm air is used to efficiently remove heat loads and contaminants from the space. This system saves 10 percent more energy than a traditional ceiling-based system, reduces ductwork lengths and sizes, and allows for individual vent control.
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References in periodicals archive
Don't confuse displacement ventilation with underfloor air distribution, notes Chris McHugh, partner with AKF Group, a consulting engineering firm.
High-Tech HVAC in a Historic Office Building: How displacement ventilation delivered better performance in a 100-year-old tower
The zinc panels on the upper portion are intended to oxidize into a silver patina in time.<br />The library features the latest in green technology and techniques, including an underfloor air distribution system, natural daylighting and LED lighting controlled by occupancy and daylight sensors.
Top Projects of 2017: Hennepin County Library-Webber Park
The building also has a combination of low-energy, cost-efficient HVAC systems--including active chilled beams, direct outdoor air units with heat recovery, underfloor air distribution and air floor system.
Liberty and Justice for All: The Beus Center for Law and Society in Phoenix has helped transform Arizona State University's downtown campus, while bringing the school's vision for openness and collaboration to the forefront
10 Hudson Yards is also equipped with underfloor air distribution; advanced lighting controls; and a robust telecommunications platform that includes site-wide Wi-Fi, fiber optic converged network, and wireless communications from any device at any on-site location.
Hudson Yards marks building milestone
Conversely, another study investigated underfloor air distribution systems and modeling these systems with EnergyPlus (Lee et al.
Differential Pressure Rise Measurements and Impact in EnergyPlus Modeling for Series VAV Fan-Powered Terminal Units Using PSC Motors
Caption: FIGURE 2 Underfloor air distribution system with separate sensible cooling and dehumidification components.
Dual Temperature Chilled Water Plant & Energy Savings
The new facility will employ leading-edge workplace concepts, technology, and design best practices supporting health and well-being, including underfloor air distribution, a green roof, sit/stand workstations, access to alternative work environments, and informal social spaces.
Groundbreaking Ceremony for New CSC Global Headquarters
Underfloor air distribution (UFAD) systems are mechanical systems that deliver space conditioning directly to occupied spaces via an underfloor plenum beneath a raised floor (Bauman and Webster 2001).
A Field Study of Occupant Thermal Comfort in a LEED Platinum Office Building With An Underfloor Air Distribution System
It's a LEED Platinum Core and Shell project with underfloor air distribution (which effectively enables all of the tenants to do well-ventilated, energy- efficient fit outs) automatic daylight control, and so on.
Colorado Sustainable Design Awards: quest for sustainability yields 'inspiring acts of frugality'
The new system is a perimeter heating and cooling solution that claims to integrate the benefits of underfloor air distribution with the efficiencies of water heating and cooling.
-Tate(R) introduces In-floor Active Chilled Beams
In recent decades, underfloor air distribution (UFAD) systems have become more popular.
A method to generate effective cooling load factors for stratified air distribution systems using a floor-level air supply
The acquisition is part of Enaco's strategy to strengthen its indoor technology business area Enaco Intech, and the acquisition makes Enaco Intech the leading provider of underfloor air distribution systems in Scandinavia.
Swedish technical buildings contractor Enaco AB acquires installation floor systems provider Atlas Environment AB
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