[BLDG-SIM] Radiant floor cooling and increased capacity with thicker slab

[Wetter, Michael UTRC]

Ian,

You may also want to look at:
Interaction of an air system with concrete core conditioning
Markus Koschenz and Viktor Dorer  
Energy and Buildings, 30(2), 1999
http://dx.doi.org/10.1016/S0378-7788(98)00081-4

Michael Wetter
___________________
Michael Wetter, PhD
United Technologies Research Center
Systems Department, Networks & Optimization Group
411 Silver Lane, MS 129-15
East Hartford, CT 06108
Phone/Fax: (860) 610 7621
WetterM at utrc.utc.com



-----Original Message-----
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Ian
Doebber
Sent: Friday, August 25, 2006 12:49 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Radiant floor cooling and increased capacity with
thicker slab

I'm looking into improving the overall efficiency of a radiant cooling
system by increasing the slab thickness 1-2 inches below the tubing and
using night cooling to charge the slab.  Currently, we have 5/8" tubing
fastened to a layer of insulation on grade and 4" of concrete poured on
top.  Ideally, if we can significantly reduce the need for cooling in
the morning for a few hours and even reduce the peak cooling load at 5pm
during the day, then we will definitely look further into this strategy.
Has anyone modeled this or better yet have experience with this on a
project and seen the benefits?

Thanks


Ian Doebber
Graduate Mechanical Engineer
Arup
901 Market Street Suite 260 San Francisco CA 94103
tel: 415-946-0292
fax: 415-957-9096
cell: 415-613-4314
ian.doebber at arup.com
www.arup.com
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