Welcome to the TRNSYS Users Forum.
The forum is a place where people can interact and have discussions about different topics involving the use of the TRNSYS software package. Here you can post topics for discussion or questions on using TRNSYS and get advice from other users or TRNSYS experts. This forum is not intended for detailed technical support. Users should contact their distributor’s hotline for such assistance.
Some tips for success on using the forum:
- Follow the Forum Rules posted in Forum Administration.
- There are categories for different types of topics and questions. Post your topic or question into the proper category.
- Before posting a topic or question search the existing topics (and the TRNSYS Users listserv archive or Post archive) to see if a similar topic or question has already been answered.
- Use a descriptive topic name. Don’t use attention getting subjects, they don’t get attention and only annoy people.
- State the version of TRNSYS and which add-ons your are using.
- Include enough specific details for your topic of question to be answered. Just posting “Why am I getting an error?” without describing the specific error and what you are trying to do when you get the error will not receive a response that fixes your issue.
- Remember when people help you, they are doing you a favor. Be patient, help people out by posting good descriptions of what you need help with, and be polite even if a response does not solve your issue.
- Moderators may edit your post for clarity or move your topic to a more appropriate category.
Last seen: Nov 12, 2024
Regarding the issue with the parameters in Type 40: In Type 40, there should be one or more "Controller Output" parameters to specify the output mod...
The first part of your scenario would be the perfect application for a differential controller (Type 165 in the standard library or Type 911 in the TE...
Hello @franzdra, The Type shouldn't read in its full parameter list at the getisFirstCallofSimulation() step, but it's perfectly okay to read in a...
@shamsoddinghiami Regarding the second question from the original post, about the number of pipes and pipe directions ... I still can't say exactly wh...
If your load profile is a repeating pattern (like a daily schedule), you can use the Type 14 forcing function to define your load profile. If your loa...
@franzdra What you described with T and T_new is perfectly analogous to how we use dynamic storage in TRNSYS. The 'dynamic' in 'dynamic storage', in t...
On re-read, I realize I probably should've used dynamic storage in the example above. Dynamic storage was written specifically to make saving and upda...
Hello @franzdra, What we usually do in our Types is define the array as a static array within the Type, with a maximum allocation for each dimension...
@m_labat I don't know which tank Type you're using (or which version of its source code), but that variable name does sound correct. There should be a...
There isn't currently a way in standard TRNSYS to run a simulation for xxx hours, then "rewind" and make a control decision based on the results at th...
My first thought is that you are probably using the average values from the final time step of the first simulation to set the initial values of the s...
@raymond-bacque What version of TRNSYS are you using? What version of Excel are you using? Are you using 64-bit or 32-bit versions of Excel and TRNSYS...
@tobiaaas On further thought, I realized sending the iterative feedback controller a tank temperature that only varies with time won't tell you ho...
@tobiaaas Sounds like you have isolated the problem to the signal output of Type 22/23. Maybe next thing to try would be disconnecting the tank fro...
@tobiaaas, My first thought is that the auxiliary heat input of Type 158 is too small. I would plot the auxiliary heat input going to Type 158 and c...