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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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.
The building offers impressive features such as nine foot ceiling heights, raised access flooring with underfloor air distribution and a desirable 5.
Stratified ventilation systems, such as underfloor air distribution (UFAD), are becoming popular in modern buildings (Bauman 2003).
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.
In recent decades, underfloor air distribution (UFAD) systems have become more popular.
Innovative use of natural daylight, new techniques in window glazing and sun control devices, an underfloor air distribution system, and individualized temperature controls were all integrated into the design.
Underfloor air distribution (UFAD) systems, which offer targeted cooling and a high degree of flexibility, historically have been used in data centers (see sidebar) where powerful equipment generates a lot of heat.
While technologies such as building energy management systems, thermal energy storage, underfloor air distribution, geothermal heat pumps, and evaporative cooling for rooftop units occupy only a small portion of the present market today, Pike Research expects their growth to accelerate over the next few years.
Underfloor air distribution systems (UFADs) became more popular in North America during the 1990's and their popularity continues to grow.
Thermal Energy Storage, Underfloor Air Distribution, Chilled Beams, and Other Emerging HVAC Innovations for High Performance Buildings
Underfloor ventilation, also referred to as underfloor air distribution (UFAD), delivers air directly to the occupied zone through floor diffusers or grilles.
A building which contains sustainable energy technologies may include daylighting, underfloor air distribution, high efficiency lighting, high efficiency HVAC, natural ventilation, digital controls, thermal energy storage, and commissioning building systems.