Clean Room Hvac Design Pdf

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.

Clean room hvac design pdf.

Hvac design clean room make up air ahus. 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. Last but certainly not least the degree of precision you need will also influence the design of the hvac system. Design must consider aspects such as control of particulate microbial electrostatic discharge gaseous contaminants airflow pattern control and pressurization and industrial engineering aspects.

Standard patient rooms the majority of patient care areas in a hospital are standard patient. This is done by supplying more air and extracting less air from the room than is supplied to it. 40 units each sized for 24 000 cfm. The cleanroom is positively pressurized to 0 05 in wc with respect to the adjacent areas.

It offers an approachable technical perspective to designers builders owners and operators of cleanrooms. Clean room design encompasses much more than traditional temperature and humidity control. Schneider r designing cleanroom hvac systems ashrae journal v 43 no. 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.

What differentiates clean room hvac to conventional systems. Cleanroom design is a challenging field dominated by the need for high reliability maintenance of strict space cleanliness requirements life safety and narrow temperature. 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. 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. There is much more into the design of cleanrooms in terms of details of technology of.