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.
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Last seen: Sep 15, 2026
@leomodra In addition, bear in mind that even if the value of the equation that sets the azimuth changes during the simulation the azimuth angle of...
@humbertosantos If the dll is from 2006 and if it works (or at least starts running) with Trnsys v17 then it is compiled as a 32-bit dll. Trnsys 18 ...
@mohammedzaoui Mohammed, I think that what you are seeing in the adiabatic version of the ground temperature profile is that heat has built up insid...
@humbertosantos The *.tmf and *.bmp files are not needed in order to run a project that contains them. Once you put a component into a project then ...
@mohammedzaoui The soil in the vicinity of the pipes is broken up into isothermal nodes that grow in size as they extend away from the pipes in the ...
@dianelr My apologies if this is very obvious to you, but once you modify the source code you have to also compile it and turn it into a DLL using e...
@mohammedzaoui Both Types 997 and 999 can generate temperature profiles. You'll find some parameters near the end of the parameter list that control...
@gasperbrunskole There are two versions of the Type534 proforma. A proforma is basically a way of describing a model's inputs to the TRNSYS engine...
@henriquesousa16 Henrique, the TRNSYS equation solver isn't clever enough to be able to solve equations simultaneously. You will need to handle that...
@shamsoddinghiami The tempering valve might give you the signal that you're looking for. It calculates the fraction of flow that needs to go through...
@mohammedzaoui Mohammed, I am not sure that I entirely understand the pipe layout that you are trying to achieve. The figure you drew (conf2.png) ...
@yuichiyasuda This is a nice addition to TRNSYS! Thank you for developing it and letting the community know about it! kind regards, david
@mohammedzaoui If you have not already done so, I would recommend looking at the "hints and tips" section of the Type999 documentation (located in ....
@shamsoddinghiami mathematically speaking, you could use either one as they both have the same end effect. I would recommend setting leaving the scale...