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.
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DavidBradley
@davidbradley
Admin
Member
Joined: Jan 20, 2023
Last seen: Nov 15, 2024
Topics: 30 / Replies: 172
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RE: How to store and array

@franzdra the SAVE attribute will maintain values from call to call of the subroutine but if you have two instances of the same Type in your simulatio...

8 months ago
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RE: How to store and array

@franzdra That is totally normal. There are many components that have to iterate internally during each of TRNSYS's iterations.

8 months ago
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RE: How to store and array

@franzdra to add on to @a_weiss's excellent and (as ever) thorough answer, the idea of the static array storage in v18 is that it provides a place to ...

8 months ago
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Answer to: Problem while modeling heating floor type 56

@sv2541 It could have something to do with the timebase. Type56 uses something called the Conduction Transfer Function method to represent energy tran...

8 months ago
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RE: CoolProp function wrong outputs

@gehadrabee24 If I understand correctly, when you call the CoolProp_Fluid_Properties() routine from a Type that you wrote you are getting back flui...

8 months ago
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RE: Problem while modeling heating floor type 56

@sv2541 As I was pressing send, I noticed your comment about having already tried changing timesteps. What kind of timesteps did you try?

8 months ago
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Answer to: Problem while modeling heating floor type 56

@sv2541 I think that your simulation is just telling you that the time constant for the radiant floor is less than an hour (which doesn't surprise me ...

8 months ago
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Answer to: Issues with Parametric Study

Jan, I must admit that I have not used the Simulation Studio parametric run feature very much. I do not think it is possible to control whether Tr...

8 months ago
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Answer to: I want to call Refprop in TRNSYS 18 , I'm working on a system i have liquid air, propane, methanol, thermal oil, to adjust using all these fluids, I want to learn how to combine Refprop with Trnsys 18?

@gehadrabee24 Hi Gehad, My apologies for the delay in getting back to you. I was checking to make sure it is okay to make the code available. If y...

8 months ago
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RE: Issues with Parametric Study

@janboettner am I correct in assuming that you are running the parametrics from the Simulation Studio? Or are you using the parametric feature from TR...

8 months ago
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RE: Type62

@raymond-bacque These kinds of problems are hard to diagnose because they have to do with configuration and settings. We'll probably have to ask you...

9 months ago
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RE: I want to call Refprop in TRNSYS 18 , I'm working on a system i have liquid air, propane, methanol, thermal oil, to adjust using all these fluids, I want to learn how to combine Refprop with Trnsys 18?

@gehadrabee24 the call to refprop was a feature of Trnsys15. It was a piece of code that could be added in and compiled with the rest of the Trnsys co...

9 months ago
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Answer to: Type 999 and 997

@shamsoddinghiami My apologies if this is obvious but once you modify the source code of a component you have to recompile it and recreate the dll in ...

9 months ago
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RE: I want to call Refprop in TRNSYS 18 , I'm working on a system i have liquid air, propane, methanol, thermal oil, to adjust using all these fluids, I want to learn how to combine Refprop with Trnsys 18?

@gehadrabee24 That is correct. Once you edit the code you'll need to recompile it and recreate the dll in which it lives. It may be simpler to make a ...

9 months ago
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