Clean Room Hvac Design Pdf

Clean room design encompasses much more than traditional temperature and humidity control.

Clean room hvac design pdf.

100 outside air delivery to plenum temperature and humidity control of make up air 6 units each sized for 30 000 cfm make up air flow is 5 cfm sf or 25 ach. Schneider r designing cleanroom hvac systems ashrae journal v 43 no. There is much more into the design of cleanrooms in terms of details of technology of. Iso dis 14644 1 cleanrooms and associated.

Hvac systems design fundamentals karachi pakistan february 22 2011 wei sun p e. Unique design characteristics which clearly distinguish one type from another. With a different purpose for each room type the standards and general hvac considerations that dictate the design of the local air distribution systems are also different. Clean air flow out to lower pressure areas laminar flow moves particles to the air returns efficiently and quickly suppress contaminates cleaning maintenance daily weekly monthly hvac and filter maintenance materials equipment approved materials and equipment design protocols.

The ashrae design guide for cleanrooms offers a practical comprehensive approach to cleanroom theories fundamentals performance control testing and industrial applications. Ashrae clean spaces technical committee tc9 11 chairman 07 10 healthcare facilities technical committee tc9 6 member laboratory systems technical committee tc9 10 member iest working group cc012 cleanroom design chairman president. Cleanroom design is a challenging field dominated by the need for high reliability maintenance of strict space cleanliness requirements life safety and narrow temperature. The precision level required.

It offers an approachable technical perspective to designers builders owners and operators of cleanrooms. This is done by supplying more air and extracting less air from the room than is supplied to it. Last but certainly not least the degree of precision you need will also influence the design of the hvac system. The cleanroom is positively pressurized to 0 05 in wc with respect to the adjacent areas.

Design must consider aspects such as control of particulate microbial electrostatic discharge gaseous contaminants airflow pattern control and pressurization and industrial engineering aspects. Hvac design clean room make up air ahus. What differentiates clean room hvac to conventional systems.