Hi everyone, Can anyone explain me about sizing of a linear slot diffuser. I do size it but i am still uncertain about it. Please help me with an example. Say, 500CFM of air for a reception lobby. What shall be the slot diffuser size for it & how to analyse it? Expecting experts view here. Balancing a HVAC System with Multiple Diffuser Types. The proportional balancing method doesn’t work if the hood accuracy varies from diffuser to diffuser in a branch. Fortunately, the SMART Air Hood™ Balancing Instrument has been used to re-balance offices with multiple types of diffusers, window slot and 2’x2’s, and shown to be very effective. In the horizontal discharge setting, the 1900 develops a strong ceiling pattern and flow adheres to the ceiling for moderate to long throws. In the vertical setting, air discharges straight down from the ceiling mounted diffuser. Intermediate and combination settings are easily made after installation.
Heating, ventilation, and air conditioning (HVAC) systems supply heated and cooled air to different areas of a home or building. Each room requires a supply and return vent, or grill, to distribute air from HVAC ducts into the space, then collect exhaust air and transfer it outdoors. A linear diffuser serves as an effective alternative to traditional supply and exhaust vents, and may also improve the appearance of the room in some applications.
The average linear diffuser consists of a long, narrow metal casing with a series of louvers or grills along once face. Installers fasten the linear diffuser into a ceiling, wall, or window sill area so that the louvered face sits flush with the surrounding surface. Linear diffusers work with both drywall structures and drop ceilings, but different types of models may be required to fit different applications. The most common linear diffuser designs include rows of diffusers along an entire wall, with vents placed either in the ceiling or window sills.
Architectural Linear Slot Diffuser
Traditional supply vents feature a very large, rounded design. The entire air contents of each supply duct were forced out of a single vent, creating drafts and noisy conditions. In a room with linear diffusers, the supply air is distributed through a series of narrow channels so it enters the room in several different areas at once. This creates a much more even distribution of air, as well as improved comfort and quieter ventilation.