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
Answer to: TRNSYS citation

Jen, Use the following to reference TRNSYS18 (or whichever version of TRNSYS you use) in a publication: Klein, S.A. et al, 2017, TRNSYS 18: A Tran...

1 year ago
Reply
Answer to: part load performance of microturbine

There is a microturbine with part-load performance component model in the v18 release of the TESS libraries. It is Type 601 in the Cogeneration or Com...

1 year ago
Reply
Answer to: SDHW example: why are the solar collector efficiency negative?

@ken I noticed that too, the negative Fsol values. I will correct the notation and equation in the project file (and the equation in the documentation...

1 year ago
Reply
Answer to: Ground coupling model related Query

@tm-abir-ahsan On my machine, the soil noding extension saved the soil noding file in my Documents folder, as [SketchUp project name]_Soil Noding File...

1 year ago
Reply
Answer to: SDHW example: why are the solar collector efficiency negative?

Hi Ken, I will walk you through my troubleshooting process: I ran the example 'SDHW' using TRNSYS version 18.05.0001 and confirmed that EtaColl_d ...

1 year ago
Reply
Answer to: Previous time step value of an input in TRNSYS 18

Hi Ken, Try Type 150 - Delayed Inputs. You should find it in the standard TRNSYS Controllers library.

1 year ago
Reply
Answer to: Rock bed storage (Type 10) - Discretization of the partial differential equation

Ali, The rock bed storage model is more similar to a tank model than it is to a ground storage model. As such, it does not have boundary conditions ...

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

unfortunately no one can tell if a simulation is 'right' or 'wrong' based on a picture of the connections. Equation and variable definitions, file loc...

1 year ago
Reply
Answer to: Convergence of systems using solver 0

Hello Damian, Trial and error can be a valuable part of the TRNSYS learning experience! That said, there are a couple of guidelines you can use to f...

1 year ago
Topic
Reply
Answer to: Error 22: The array which holds the EQUATIONs and CONSTANTs has been corruped

Hello Toni, I think your .dck file got corrupted somehow. If you look on line 4601 (about a dozen lines below the line **BEGIN type888.ddck), you'll...

1 year ago
Reply
RE: Error 22: The array which holds the EQUATIONs and CONSTANTs has been corruped

@tonicalabrese It might help to copy and paste the .dck or .log file as a comment or as a reply on this post. I have seen other users do that, in orde...

1 year ago
Reply
Answer to: Ground coupling model related Query

Pages 4-393 and 4-394 of the Mathematical Reference volume of the documentation (in the Documentation folder of your main TRNSYS directory) cover the ...

1 year ago
Reply
Answer to: Is there any TRNSYS model for integrated collector storage (ICS)?

@ken There are two variations on a tubular integrated collector storage (ICS) model in the TESS Solar Component Library. You can read about the TESS c...

1 year ago
Reply
Answer to: What is the storage tank type in TRNSYS 18 that is close to type 60 k to model horizontal tanks?

@ken There are horizontal storage tanks in the TESS Storage Tank Component Library. You can read about the TESS component library packages and downloa...

1 year ago
Page 7 / 11