We are located in Urbana, Illinois...but since we don't (and can't) take any outside air directly, the maximum dewpoint of our supply air is ~56 F (assuming the building systems are functioning correctly). Thanks!
Thanks everyone for your help so far. To provide some additional information on the layout, I've attached a PPT file with a drawing (sorry for my poor drawing skills!) of the current system, and a drawing of my proposed system. Some of the unique challenges of this retrofit project are:
1) I...
All I really know for sure is that our present humidity level is way too high. Our optics are degrading, our lasers become unstable, and we get excessive frosting on our equipment that is cooled by liquid nitrogen. I've been told by other laser lab operators that 35% RH is a good benchmark...
Dear Quark,
Thanks for your reply, and I'm sorry for the confusion (as you can tell I'm not a professional HVAC engineer!). To clarify, the building system takes outside air and cools it all down to ~56 F. A portion of that cooled air is then reheated, and the "cold" and "hot" air are mixed...
Dear Eng-Tips Community,
I run a 1200 sq. ft. laser laboratory (12' ceilings). We would like to maintain the air in our lab at ~70 F, with a relative humidity less than about 35%. We have one fume hood in the room, which exhausts about 400 cfm. The remainder of the exhausting is performed by...
