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Re: [TRNSYS-users] Controllers Type 22 / 23 and Internal controls Type 536
José,
I would suggest checking the "more" button on Type536; at one point my colleague added a few additional modes where the outlet temperature is controlled but the flow rate is turned off if the calculated outlet temperature is less than the desired outlet temperature and the flowrate is already at its max.
kind regards,
David
On 11/06/2020 08:50, José María Roca
via TRNSYS-users wrote:
Hello community, hope you are all safe and sound.
I’m having some issues implementing controls over the pump flow on the parabolic concentrator to keep a stable output temperature.
If I use the Type 22 (iterative feedback controller) which I understand it’s a “perfect” controller (please correct me if i’m wrong) the output temperature and pump flow get crazy moves up and down.
On the other hand if i use the internal control of the Type 536, which sets the flow to keep the output temp, the flow and temp are very steady. However I can’t control what happens to the flow on low irradiance or when the system is loosing energy, so that’s why I want an external controller and what would better resemble a practical example to build such a system.
Any tips on what to look in those controllers to have a steady output?
Thanks!
Best,
José María Roca
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