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
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RE: new green roof component

@yuri_h The model is available for purchase as an individual component of the TESS libraries. Contact your TRNSYS distributor to order it as an indivi...

1 year ago
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Answer to: Errors occuring when starting the simulation

@alexa What does your equation block look like? I'm expecting it to look something like the following, where "Windspeed" is the value connected from y...

1 year ago
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Answer to: Errors occuring when starting the simulation

@alexa It also looks like you're trying to use Type15 to read 'turbina.txt'. Type15-2 is only for reading weather data files in the TMY-2 format, a ve...

1 year ago
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Answer to: Errors occuring when starting the simulation

Ah! Now we're getting somewhere! The errors are all telling you that there's something wrong in your "Equa" equation block, specifically with th...

1 year ago
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RE: Errors occuring when starting the simulation

@alexa What does the .lst file say? The next window that pops up should show a table with one or more errors, or you can click on the 'Results, warnin...

1 year ago
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Answer to: Errors occuring when starting the simulation

@alexa I would like to help, but I'm going to need more information. What version of TRNSYS are you using? What specific error are you getting? Is it ...

1 year ago
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RE: Heat pump defrost cycle

@janboettner Unfortunately I do not have experience with or information about either of those models.

1 year ago
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Answer to: Fortran - TypeStudio Editing an Obsolete Type - Type 60l ( horizontal tank with internal HEX) - conversion .for to .f90

Hi Mehdi, Yes, I remember replying to you on the forum here about the Type 533 plug-in and .dat file. I take it you're still having problems with Ty...

1 year ago
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Answer to: Create overview of all connections of one type to all other types

Hi Jan, If you're only changing the order of the inputs and outputs for a Type, and not changing the names, you may be able to just replace the old ...

1 year ago
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Answer to: Providing constant input to Type

Setting an input to a constant value (in Type 941 or in any other TRNSYS Type) is very easy. On the Inputs tab of the proforma, in the "Value" field t...

1 year ago
Topic
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Answer to: Invalid floating point operation

@ayoub-nassa Would you please send your project and any files needed to run your project to weiss@tess-inc.com? It sounds like you have a good underst...

1 year ago
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Answer to: Heat pump defrost cycle

@janboettner I definitely documented versions of the TESS HVAC library air-air heat pump models about a year ago that include defrost performance mode...

1 year ago
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RE: Invalid floating point operation

@ayoub-nassa Why is there fluid flow in the collectors at night - do you have a pump and a pump controller in your system? If the issue is a temperatu...

1 year ago
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Answer to: Checking the efficiency equation of solar thermal collector in TRNSYS (Type 1b)

Hi Ken, I applaud your efforts and understand your confusion. I think you did everything right, there are just a couple of details missing from the ...

1 year ago
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