[TRNSYS-users] Determining umax in feedback controller

[Rambod Rayegan]

Dear TRNSYS users,



I created a TRNSYS file to simulate the performance of a flat plate
collector. In this file I used a feedback controller to set the collector’s
output temperature on 120 °C.  I checked the TRNSYS example “SDHW-Feedback
controller” and I chose umin and umax equal to 0 and 1 respectively.

When I check the results I see that in some time steps temperature is higher
than 120 °C while flow rate is zero. BY changing umax in feedback controller
the results are being modified slightly but I don’t know how I can find the
optimum umax.

Actually I am not sure that changing umax will solve the problem.

Attached to this email you can find a copy of my file.

Thank you.

Rambod
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20110116/59f24d1a/attachment-0005.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Type 71 with Feedback controller.tpf
Type: application/octet-stream
Size: 111195 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20110116/59f24d1a/attachment-0005.obj>