Thanks David. I
think I need a bit of clarification though:
I am just
modeling the one airnode representing my level (call it
level 5), and presuming that the imaginary levels 6 and 4
are at a constant temp by designating both the floor and
ceiling of floor 5 as boundary constructions. There are no
actual adjacent airnodes representing level 6 or 4 present.
However, I still wish to consider the effect of level 4’s
radiant system on level 5 via the floor in addition to the
effect of level 5’s radiant ceiling. When trying to
distinguish the floor from the ceiling here, I run into
trouble.
I thought about
creating ideally conditioned “dummy” airnodes for levels 6
& 4 and defining the radiant surfaces as adjacent
constructions to overcome this, but wanted to know if
there’s an easier method of telling floor from ceiling with
the model as-is.
Thanks again!
Ajit
Naik
Energy
Engineer
dbHMS
303
W Erie Street, Suite 510
Chicago,
IL 60654
p
(312) 915-0557 x308
f
(312) 915-0558
www.dbhms.com
Ajit,
I would have defined a single construction separating the
airnode above from the airnode below (instead of defining two
BOUNDARY surfaces). To get the surface temperature of the
ceiling side of the construction, select the airnode that
contains the ceiling when you are in the TRNBuild output
manager. Change to "surface outputs" and select the TSI ntype
(ntype17).
Best,
David
On 12/18/2013 11:25, Ajit Naik wrote:
Hello All,
I am modeling a single floor of
multi-story building with an in-ceiling radiant system. I
have defined an active surface has a carpet on the “floor”
side and exposed concrete on the “ceiling” side.
I naturally defined the ceiling of the
airnode as an active surface, but also defined the floor as
an active surface as well to account for the effects of the
underlying level’s radiant ceiling. Both the ceiling and the
floor of the airnode are defined as boundary surfaces with a
fixed temperature on the other side.
Here’s my problem – I am interested in
recording the airnode’s CEILING temperature (at the exposed
concrete surface) – but within TRNBUILD the ceiling and
floor both have identical surface areas and I cannot tell
which is which! The only differentiable marker I observe is
the surface type. Is there any simple way to find which of
the two surfaces is the Ceiling in this case?
Thank you!!
Ajit
Ajit
Naik
Energy
Engineer
dbHMS
303
W Erie Street, Suite 510
Chicago,
IL 60654
p
(312) 915-0557 x308
f
(312) 915-0558
www.dbhms.com
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