A high performance linear diffuser
was placed at the end of the first tunnel to distribute conditioned air 50 ft (15 m) down the bridge.
Air first enters the space and moves downward and away from the linear diffuser
The two linear diffusers
placed on the drop ceiling are facing the window and designed to supply 70 cfm (33 L/s) each directly towards the window whereas the linear diffuser
over the patient is designed to supply 87 cfm (41 L/s).
In the case of the overhead mixing system the air is supplied in the lobby area through a side bar linear diffuser
with 1 inch slot placed at a height of 11 ft all along the length of the lobby.
On the same principle the initial base case configuration is modified by increasing the size of the room return and moving it behind the linear diffuser
over the patient's head (Case 3, Figure 1d).
In fact, while I was developing criteria for a linear diffuser
in the late 1970s, I conducted more than 1,000 tests using varying temperatures and airflow rates and calculated temperature/velocity profiles for each of them.
There are very few locations where a linear diffuser
should be set to discharge down, although it seems many are set that way, likely by accident.
The ventilation performance for the entire occupied zone with the linear diffuser
was the lowest that is close to perfect mixing conditions.
Addressing this set of opportunities, the design team created a new, hybrid type of linear diffuser
and integrated it and all perimeter HVAC functions under one continuous linear bar grille along the outside wall.
Type of services - A ventilation and air conditioning / heating, cooling, humidifying, dehumidifying / air volume: 38 400 mA / h : - A ventilation and air conditioning / heating, cooling / air volume: 27 830 mA / h : - 7-roof exhaust fans, total air flow 4700 mA / h : - 4 smoke extract roof fans, total air quantity 120 000 mA / h : - 6300 sqm galvanized steel channel : - 560 m spiral duct : - 500 m linear diffuser
: - 58 fire dampers K90 and 27 calcium silicate fire dampers
Air-conditioning is a blessing in this part of the world, but unless you want to stock up on pashminas, make sure that the wall-sited linear diffusers
aren't issuing an Arctic-like chill down upon your diners -- especially the ladies in their minimalistic Armani evening dresses.
The Sedona-Xm uses linear diffusers
instead of registers to distribute an even, quiet, and draft-less airflow.