This is done by supplying more air and extracting less air from the room than is supplied to it.
Clean room hvac design pdf.
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.
Once the room acph re quirement is established the volume of air needed can be calculated desired acph 60 x room volume in cubic feet total airflow volume.
Hvac systems design fundamentals karachi pakistan february 22 2011 wei sun p e.
Hvac design clean room make up air ahus.
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 cleanroom is positively pressurized to 0 05 in wc with respect to the adjacent areas.
May 1 2019 rev.
It offers an approachable technical perspective to designers builders owners and operators of cleanrooms.
The ashrae design guide for cleanrooms offers a practical comprehensive approach to cleanroom theories fundamentals performance control testing and industrial applications.
What differentiates clean room hvac to conventional systems.
Schneider r designing cleanroom hvac systems ashrae journal v 43 no.
Ashrae 170 2013 hvac task force endoscope cleaning room endoscope processing room decontamination room endoscope processing room 2 room design decontamination room clean workroom clean workroom.
Clean room design encompasses much more than traditional temperature and humidity control.
There is much more into the design of cleanrooms in terms of details of technology of.
Design must consider aspects such as control of particulate microbial electrostatic discharge gaseous contaminants airflow pattern control and pressurization and industrial engineering aspects.
40 units each sized for 24 000 cfm.
November 1 2017.
Condition the space which must be determined by a qualified hvac engineer.
Iso dis 14644 1 cleanrooms and associated.
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.
