Clean Room Hvac Design Pdf

This is done by supplying more air and extracting less air from the room than is supplied to it.

Clean room hvac design pdf.

The precision level required. Unique design characteristics which clearly distinguish one type from another. 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.

Clean room design encompasses much more than traditional temperature and humidity control. It offers an approachable technical perspective to designers builders owners and operators of cleanrooms. 40 units each sized for 24 000 cfm. Hvac systems design fundamentals karachi pakistan february 22 2011 wei sun p e.

There is much more into the design of cleanrooms in terms of details of technology of. Iso dis 14644 1 cleanrooms and associated. Schneider r designing cleanroom hvac systems ashrae journal v 43 no. For example some regions in winter the hvac systems need to take the outside air at 22 f 30 c warm it up to 68 f 20 c remove the humidity and bring it into the room over and over.

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. 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. What differentiates clean room hvac to conventional systems.

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. 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.