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.
Last seen: Nov 15, 2024
@xenia-kirschstein Xenia, thanks for the screenshot and yes, you're correct that it is because your computer is set to use "," as the decimal separat...
@biz98 Marco, I have seen that same issue a few times before. Sometimes it is an artifact of the viewer and not an actual problem with the geome...
@xenia-kirschstein thank you for pointing to that article! We have some in-house methods that we use as well. It will be interesting to see if our m...
@xenia-kirschstein Xenia, thank you for your feedback! Input like this from users is very valuable! Can you give me a little more information abou...
@franciscofh Francisco, the 10-zone limit is a soft one; it can be modified by editing the proforma and recompiling the code with a different limit. I...
@zhangxiaohan I am not very familiar with the methods the LBNL's WINDOW program uses to compute the u-value of glazing systems. I would recommend that...
@parispasq the latest version of the T3d installer can be downloaded from/span> I notice, however, that there is a more recent version available tha...
@shamsoddinghiami I think it is very important to figure out where the air is disappearing to; it shouldn't be. It might seem quite basic but I usuall...
@a_weiss and @chushunzhou if you have not already done so, it may be worth looking at the Type761 documentation (.\TrnsysXX\Tess Models\Documentation\...
@jolind Johan, I think you are likely correct that the difference is because the inside heat transfer coefficients for the floor and the ceiling are d...
@shamsoddinghiami The last two inputs that Type793 requires are the supply air set point temperatures in heating and cooling mode. Essentially the com...
@shamsoddinghiami That is not uncommon. I am working on a project at present and we are seeing the system initiating cooling when the ambient tempe...
@shamsoddinghiami I am sure that you will have to adapt the following a bit but here is how I often proceed when dealing with variable speed flow loop...
@shamsoddinghiami it sounds a bit like you're modeling something like a variable air volume system (if I am correct that the diverter is on the air s...
@shamsoddinghiami In addition to the answer from @a_weiss, some of the variable speed heat pump models ask you to specify the outlet temperature tha...