[BLDG-SIM] Radiant floor cooling and increased capacity with thicker slab
Peter Simmonds
peter.simmonds at ibece.net
Thu Aug 31 07:46:29 PDT 2006
Yes, we spent many hours modelling radiant systems and invested a great
deal of finance. The results have been somewhat published in papers by
Gaw, Ruess, Holst and Simmonds, also Bjarne Olesen and Meirhans have
published work on active concrete. There are also other publications
such as Markus Kochenz. EMPA were Kochenz used to work has also
published data on controlling radiant floors. Night flushing has also
been reported by Braun and Simmonds.
Real buildings up and running are Bangkok airport, 199 Fremont in San
Francisco, Akron Art Museum, Water and life in Hemet (CA), the Groninger
Museum ( the paper written on this project explains exactly what you are
looking at) and a few more.
Good Luck and use TRNSYS.
Peter Simmonds Ph.D.
Associate
IBE Consulting Engineers
14130 Riverside Drive Suite 201
Sherman Oaks, CA 91423
p: (818) 377-8220
f: (818) 377-8230
m: (818) 219-1284
IDEAS FOR THE BUILT ENVIRONMENT
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-----Original Message-----
From: BLDG-SIM at GARD.COM [mailto:BLDG-SIM at GARD.COM] On Behalf Of Ian
Doebber
Sent: Friday, August 25, 2006 9:49 AM
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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