We promise, we won't send you any spam. You can easily unsubscribe.

Room air distribution

Characterizing how air is introduced to, flows through, and is removed from spaces is called room air distribution. HVAC airflow in spaces generally can be classified by two different types: mixing (or dilution) and displacement.

Mixing systems generally supply air in a manner that the air in the entire room is fully mixed. In cooling mode, the cool supply air, typically around 55°F (saturated) at design conditions, exits an outlet at high velocity, inducing room air to provide mixing and temperature equalization. Because the entire room is near-fully mixed, temperature variations are small while the contaminant concentration is fairly uniform throughout the entire room. To enhance the mixing, diffusers are normally used as the air outlets. Most often, the air outlets and inlets are placed in the ceiling, via a ceiling plenum; this arrangement is known as 'conventional room air distribution'.

Displacement systems introduce air at low velocities to cause minimal induction and mixing. This system is primarily used for ventilation and space cooling applications. The displacement outlets are usually located at or near the floor. The system utilizes buoyancy forces (generated by heat sources such as people, lighting, computers, electrical equipment, etc.) in a room to move contaminants and heat from the occupied zone to the return or exhaust grilles above. By doing so, the air quality in the occupied zone is generally superior to that achieved with mixing room air distribution. If air mixing is encouraged at the floor level, this type of floor-to-ceiling room air distribution is known as underfloor air distribution (UFAD); if mixing is discouraged, it is displacement.

Report
Related items:
hazard recognition �...
READ MORE

hazard recognition – energy wheel safety talk

top 7 best carpenter...
READ MORE

top 7 best carpenters tool belt reviews: best quality belt for carpenters for 2023

vaco 3/16” 1/4” ...
READ MORE

vaco 3/16” 1/4” 5/16” 3/8” ratcheting box end hvac wrench - 70264 - usa $0.99

vintage vaco 70264 r...
READ MORE

vintage vaco 70264 ratcheting box end hvac wrench 3/16 x 5/16 & 1/4 x 3/8 usa $10.99

cart - vetopropac...
READ MORE

cart - vetopropac

amazon.com: hvac tec...
READ MORE

amazon.com: hvac technician ornament, best hvac technician ever ornament, best hvac technician christmas ornament, gift for hvac technician, birthday gift, anniversary, christmas ornament printed on both sides : home & kitchen

how to drill through...
READ MORE

how to drill through carpet without damaging it

how to spring clean ...
READ MORE

how to spring clean a metal roof

what you need to kno...
READ MORE

what you need to know about hvac safety in the workplace

ribbon cutting for b...
READ MORE

ribbon cutting for bcc shuttle bus service and outdoor fitness equipment – bronx community college

product management t...
READ MORE

product management through the lens of the seven stages of love

how to stop your bat...
READ MORE

how to stop your bathroom fan from blowing dust

3 ways to use simula...
READ MORE

3 ways to use simulation training to bridge the gap between theory and practice

how ai integration w...
READ MORE

how ai integration works: a new era for construction technology

how to make money in...
READ MORE

how to make money in construction in 2023 (types & how to earn money)

17 best irrigation t...
READ MORE

17 best irrigation tools to save more water in 2023

Hvac Hands