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.

A_Weiss
A_Weiss
@a_weiss
Moderator
TESS Engineer
Joined: Jan 19, 2023
Last seen: Nov 25, 2024
Topics: 11 / Replies: 144
Reply
RE: PID controlled Constant volume liquid storage (TYPE 158)

@tobiaaas On further thought, I realized sending the iterative feedback controller a tank temperature that only varies with time won't tell you ho...

9 months ago
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RE: PID controlled Constant volume liquid storage (TYPE 158)

@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...

9 months ago
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Answer to: PID controlled Constant volume liquid storage (TYPE 158)

@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...

9 months ago
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RE: Type 47 and Type 48. Battery and inverter compability

@tobiaaas I did notice that Type 47b has a default cell energy capacity much lower than the battery in the WindDieselPV example (16.7 Ah x ~2.5 V &...

10 months ago
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RE: Type 47 and Type 48. Battery and inverter compability

@tobiaaas, I think that might be a typo in the 10-Examples.pdf that suggests inverter mode 0 pairs with battery mode 1. I don't think there's a c...

10 months ago
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Answer to: Type 47 and Type 48. Battery and inverter compability

Hello @tobiaaas, I am not sure why the battery doesn't discharge in your simulation. Have you looked at the example WindDieselPV.tpf (in the Example...

10 months ago
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Answer to: Type 999 and 997

Hello @shamsoddinghiami, 1) You can use either Type 997 or Type 999. Type 999 will run slower, but allows you to have multiple instances of Type...

11 months ago
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Answer to: event counter

Hello @juche, Sounds like you want Type 1505, Event Counter, which is part of the TESS Controllers library of components. The output of Type 1505 wi...

11 months ago
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Answer to: Only one instance of Type 49 allowed in a simulation

Sam, There was a bug in an older version of TRNSYS that caused Type 49 to error, even when there was only one instance of the Type in the simulation...

11 months ago
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RE: TRNSYS - Error Code 306

@the-mechanix Thank you for the extra clarification! It helps a lot to know what changed in the project immediately before the error occurred. Can you...

12 months ago
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Answer to: Type50a  How to set heat collection efficiency

@manaya_ Your English is very good! I think I understand the question you are asking, but if not, please let me know! I assume you are trying to s...

12 months ago
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Answer to: Is there any tool in TRNSYS to perform a kind of inverse technique to estimate unknown parameters of a component based on experimental data?

@ken What we typically do when we tune parameters to match measured data is calculate a cost function at each time step in an equation block, for exam...

12 months ago
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Answer to: TRNSYS - Error Code 306

I can't say for sure from the information given, but if you haven't edited the .dck file directly my guess is you're using a specified-format version ...

12 months ago
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Answer to: Artificial intelligence with trnsys

@gehadrabee24 You can read about writing and compiling your own TRNSYS Type in the ProgrammersGuide.pdf, which is in the Documentation folder of your ...

12 months ago
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