Dear TRNSYS users,
I have a txt file that represents cooling load of a building from 0 to 8760 hr (in
hr timestep) and it consists of two columns (time,hr & load,kW)
And I'd like to use type 9e to read it in a project that will run only in the summer in 1 min time step.
Therefore, to understand the reading and the interpolating process of type 9e:
I connected type 9e to printer 25c (output 2 of type 9e to printer
25c) and I let the simulation run from 3624 to 3648 (for example) in a 1 hour timestep.
The parameter of type 9e are:
Mode 5
Headers to skip 1
No. of values to read
2
Time interval of data 1 hr
Interpolate or not-1 1 (interpolate)
Multiplication of factor-1 1
Addition factor-1
0
Average or instantaneous value-1
1 (instantaneous)
Interpolate or not-2 1 (interpolate)
Multiplication of factor-2 1
Addition factor-2 0
Average or instantaneous value-2 1 (instantaneous)
However, when I compared the resulted text file with the original (input) load file I found a small difference between them (just the start point was the same value)
hr original type9e
| 3624 |
4.08075 |
4.08075 |
| 3625 |
3.29606 |
3.68841 |
| 3626 |
2.67251 |
2.98429 |
| 3627 |
2.11276 |
2.39263 |
| 3628 |
1.56749 |
1.84012 |
| 3629 |
1.00987 |
1.28868 |
| 3630 |
1.97730 |
1.49358 |
| 3631 |
3.61448 |
2.79589 |
| 3632 |
6.02759 |
4.82103 |
| 3633 |
7.45960 |
6.74359 |
| 3634 |
8.49693 |
7.97826 |
| 3635 |
9.06962 |
8.78327 |
| 3636 |
9.21186 |
9.14074 |
| 3637 |
9.58118 |
9.39652 |
| 3638 |
10.29610 |
9.93864 |
| 3639 |
10.89955 |
10.59782 |
| 3640 |
11.23216 |
11.06585 |
| 3641 |
11.21300 |
11.22258 |
| 3642 |
10.30281 |
10.75791 |
| 3643 |
8.84916 |
9.57598 |
| 3644 |
7.35176 |
8.10046 |
| 3645 |
6.42763 |
6.88970 |
| 3646 |
5.68270 |
6.05516 |
| 3647 |
4.99971 |
5.34120 |
| 3648 |
4.34179 |
4.67075 |
I changed the mode to 4 but I did not get the same input values as well.
Am I selected the wrong type of 9 or there is something incorrect in the parameters
Please can
anyone help me
Kind regards,
Shahen