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Wang,
When you use TRNFlow, you are allowing Type56 to compute
interzonal air flow rates based on the external environmental
conditions that you are imposing (from a weather file for example).
I suppose that you would have to tune either the environmental
conditions or the amount of openings in your building envelope so
that you get an infiltration rate (calculated by TRNFlow) that
approximates the value that you measured (0.53 ach/h)
regards,
David
On 2/22/2011 14:20, 王洋 wrote:
Dear Mr. Bradley,
Thanks for your reply!
But in the TRNFlow manual: there it is explained that
"As soon as TRNFLOW is turned on, (...) in the simulation the
defined infiltrations, ventilations and couplings will be
replaced with the calculated air flows."
The fact is that I defined initial CO2% as 1000 ppm in
the test room in TRNFlow, and I defined the ambient CO2% as 380
ppm. Meanwhile, I defined the infiltration rate as 0.5276 1/h
in TRNBUILD. I want to compare the CO2% reducing curve in the
test room based on the infiltration rate 0.5276 1/h of actual
measurement value with by TRNSYS simulation. But when I used
TRNFLOW, the defined infiltration rate as 0.5276 1/h in TRNBUILD
was replaced maybe. 1000 ppm in the test room keeps constant.
Please explain this! Or tell me how to compare the test room
infiltration rate of actual measurement value with by
TRNSYS/TRNFlow simulation?
But in the TRNFlow manual: there it is
explained that "As soon as TRNFLOW is turned on, (...) in
the simulation the defined infiltrations, ventilations and
couplings will be replaced with the calculated air flows."
The fact is that I defined initial CO2% as 1000
ppm in the test room in TRNFlow, and I defined the ambient
CO2% as 380 ppm. Meanwhile, I defined the infiltration rate
as 0.5276 1/h in TRNBUILD. I want to compare the CO2%
reducing curve in the test room based on the infiltration
rate 0.5276 1/h of actual measurement value with by TRNSYS
simulation. But when I used TRNFLOW, the defined
infiltration rate as 0.5276 1/h in TRNBUILD was replaced
maybe. 1000 ppm in the test room keeps constant. Please
explain this! Or tell me how to compare the test room
infiltration rate of actual measurement value with by
TRNSYS/TRNFlow simulation?
Wang,
TRNBuild offers an output (NTYPE96) which is the
air change rate of infiltration. TRNBuild also
offers an output for the energy gain (or loss) from
infiltration (NTYPE4)
Regards,
David
On 2/21/2011 15:16, 王洋 wrote:
Dear all,
I want to compare the test room infiltration
rate of actual measurement with by TRNSYS
simulation. Maybe as you know, in the TRNFlow
manual: there it is explained that "As soon as
TRNFLOW is turned on, (...) in the simulation
the defined infiltrations, ventilations and
couplings will be replaced with the calculated
air flows."
I defined CO2% as 1000 ppm in TRNFlow, then I
want to observe CO2%'s reducing curve when
infiltration rate is 0.5276 1/h (I measured
the value in the test room), so I defined the
infiltration rate as 0.5276 1/h in TRNBUILD.
But when I used TRNFLOW, the defined
infiltration rate as 0.5276 1/h in TRNBUILD
was replaced. And 1000 ppm keeps constant.
Please tell me how to get the infiltration
rate curve using TRNSYS/TRNFLOW or how to
explain this ?
I want to compare the test room
infiltration rate of actual measurement
with by TRNSYS simulation. Maybe as you
know, in the TRNFlow manual: there it is
explained that "As soon as TRNFLOW is
turned on, (...) in the simulation the
defined infiltrations, ventilations and
couplings will be replaced with the
calculated air flows."
I defined CO2% as 1000 ppm in TRNFlow,
then I want to observe CO2%'s reducing
curve when infiltration rate is 0.5276 1/h
(I measured the value in the test room),
so I defined the infiltration rate as
0.5276 1/h in TRNBUILD. But when I used
TRNFLOW, the defined infiltration rate as
0.5276 1/h in TRNBUILD was replaced. And
1000 ppm keeps constant.
Please tell me how to get the
infiltration rate curve using
TRNSYS/TRNFLOW or how to explain this ?
When
simulating an applied thermal
system, I'm using EES for the
hydronic part. I programmed the
hydronic circuit in EES and
coupled it with TRNSYS via Type
66a. This coupling works fine,
but;
The
problem is that the simulation
runs very slow. Every timestep
that TRNSYS calls EES, the EES
project is opened and closed. Is
there a way to set some settings
so EES isen't closed and
reopened each time, this would
minimize the solution time alot.
Thanks
on advance
Joris
Doms
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Dear all,
when entering data in Trnbuild I
have to describe the walls of the
zone: if, looking at the plant of
the building, the building has more
than a wall south oriented for
example (wall to the left in the
plant) Ishouldenter
in Trnbuildeach
sectionofwallfacing
south or I should enter a unique
wall that is the sum of all
sections of wall facing south?
Thanks in advace.
Best regards