Dear TRNSYS users, I use TYPE 460 to simulate a hypocaust (air-to-soil exchanger). I added the parameter definition of my model. The model runs properly and the output parameters seem to be realistic (although one would expect to have more effect on air temperatures).
The output temperatures are realistic. However the output variables flow and velocity give strange results. The output values for Fair and Vair between 0 and the output value 0 is given. These outputs are bold in the file below. I investigated this problem and my conclusion is that only between 0 and
My question, is it possible that this is a error in type 460 or is something wrong in my model. It makes no sense that the velocity and flow have realistic values between 0 and
Thanks in advance.
Kind regards, Thijs
van Brakel
Parameter definition file:
************************************************ * TYPE 61 SUPPLIED
PARAMETERS
*=============================================== *
Nmod,Nsec,Nsoil,Nsurf,NI,NJ,NK [-]: 2
2 2 2 18 4 5 * DX
[m]:
5.0000E+00 2.0000E+00 2.0000E+00 2.0000E+00
2.0000E+00 2.0000E+00 2.0000E+00 2.0000E+00
2.0000E+00 2.0000E+00 2.0000E+00 2.0000E+00
3.0000E+00 3.0000E+00 3.0000E+00 3.0000E+00
2.0000E+00 5.0000E+00 * DY [m]:
5.0000E+00 2.0000E+00 0.1000E+00 0.08860E+00
* DZ [m]:
1.0000E+00 0.1772E+00 1.0000E+00
0.80000E+00 7.0000E+00 * TypSec [-]: 1
1 2 2 2 2
2 2 2 2 2
2 1 1 1 1
1 1 * TypSoil for front
surface [-]:
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0 * TypSoil for sec#
1 [-]:
1 1 1 1 0
1 1 1 1 0 0
1 1 1 1 0 0
1 1 1 1 0 0
2 2 2 2 0 0
2 2 2 2 0
2 2 2 2
* TypSoil for sec#
2 [-]:
1 1 1 1 0
1 1 1 1 0 0
1 1 1 0 0 0
1 1 1 1 0 0
2 2 2 2 0 0
2 2 2 2 0
2 2 2 2 * TypSoil for rear surface
[-]:
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0 * PosInf [-]: 1
1 1 1 1
1
* Kair0 [kJ/K m2],Kair1
[(kJ/K m2)/(m/s)]: 10.80E+00
14.2+00
* LamSoil [kJ/hr K m],
CvSoil [kJ/K m3]: 1.08
1.3E+03
8.64
2.5E+03
* LamTub [kJ/hr K m], CvTub
[kJ/K m3]:
0.612
1.3230E+03
* ThTub [m], CtubCor [-],
Cfric [-]:
6.0000E-03 0.8862E+00
0.1000E-01 * TypWatFlow [-], Vwat
[m/h]: 1
1 1
0.0000E+00 0.0000E+00 0.0000E+00 * NiniSoil,NiniWat [-]: 6 1 * TiniSoil [degC],
PosIniSoil [-]: 0.30E+01
1 1 1 18 4 1 0.44E+01
1 1 2 18 3
2 0.58E+01
1 1 3 18 4 3 0.75E+01
1 1 4 18 4 4 0.86E+01
1 1 5 18 4 5
0.44E+01 3 4 2 13
4 2 * ThIniWat [m], PosIniWat
[-]: 0.0000E+00 * Nopt [-]: 20 * TypOpt [-], PosOpt [-]:
1 3 4 2 4
4 2 !Tair, 0 -
1 4 4 2 5
4 2 !Tair, 2 - 1
5 4 2 6 4 2
!Tair, 4 -
1 6 4 2 7
4 2 !Tair, 6 -
1 7 4 2 8
4 2 !Tair, 8 -
1 8 4 2 9
4 2 !Tair, 10 -
1 9 4 2 10
4 2 !Tair, 12 -
1 10 4 2 11 4
2 !Tair, 14 -
1 11 4 2 12 4
2 !Tair, 16 -
1 12 4 2 13 4
2 !Tair, 18 -
23 4 4 2 4
4 2 !Fair, Flow rate 0 -
23 11 4 2 11
4 2 !Fair,
Flow rate 19
-
24 4 4 2 4
4 2 !Vair, Velocity air 0 - 24 11 4
2 11 4 2 !Vair,
Velocity air
19 - 20m. 101
1 1 1 18 1 1 !Tsoil, T
soil 0- 101
1 1 2 18 1 2 !Tsoil, T
soil 1- 101
1 1 3 18 1 3 !Tsoil, T
soil 1.2- 101
1 1 4 18 1 4 !Tsoil, T
soil 2.2- 101
1 1 5 18 1 5 !Tsoil, T soil
3.0-
10 3 4 2 13
4 2 !Tsoil, T
hypocaust
15 3 4 2 13
4 2 !Psoil(0) Energy rate
diffused
|