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: Battery 47a Problem

@ASAlburaiki Type47a is designed to be used with an inverter/controller (such as Type48), which allows the user to set high and low limits on the fr...

4 months ago
Reply
Answer to: Error in Type 515 and 516

Hello @saeidbina , The installation on your new computer probably either cannot find or has not registered the Windows 'comdlg32.ocx' file. I wrote ...

4 months ago
Reply
RE: TYPE 5A : unit conversion

The same behavior was true in TRNSYS17 and all earlier versions of TRNSYS, the automatic pop-up notification was added with TRNSYS18 to make the behav...

5 months ago
Reply
Answer to: TYPE 5A : unit conversion

@marcos In TRNSYS18, there is pop-up notification that reads, "WARNING: Changing an input unit will not affect the value calculated by any variables...

5 months ago
Reply
Answer to: Fonction Schedule_Type 56 (Help)

@manuel_ines You can define a schedule either in TRNBuild or in the TRNSYS simulation using the Type 14 forcing function. With either method, you wi...

5 months ago
Reply
Answer to: Heat Pump controller Differential or simple equations ?

If you *do* want a controller that operates exactly as you described, you could use Type 106, the basic aquastat in heating mode, with a heating setpo...

5 months ago
Reply
Answer to: Heat Pump controller Differential or simple equations ?

@joevega Any of the controllers with a "deadband" will do exactly what you described as far as maintaining the previous control signal while the tem...

5 months ago
Reply
Answer to: On/Off Differential controller

The first value, or upper value of the differential controller (Th), is indeed disconnected in this example, and therefore always equal to its initial...

5 months ago
Topic
Replies: 0
Views: 221
Reply
Answer to: Insert new Equation (Help)

@manuel_ines You can read more about the calculator functions in the document 06-TRNEdit.pdf, found in the Documents folder of your main TRNSYS1...

5 months ago
Reply
Answer to: how to use type 761, Heat Exchanger With Cold-Side Modulation to Maintain Temperature Difference

There's really not enough information here to say what happened in your simulation. How did you conclude it was Type 761 that didn't work? I wou...

6 months ago
Reply
Answer to: Type 938 Parameters

Type 938 is a performance map, or catalog data-based, water heater heat pump Type. As such, it is much more similar to other TRNSYS/TESS heat pump Typ...

6 months ago
Reply
Answer to: Hydrogen storage tank

@masoud-haddadyahoo-com Both the inlet and outlet volumetric flow rate are converted to mol/hr flowrates within the Type by multiplying by the densi...

6 months ago
Reply
RE: Which debbugers are available for Type Studio/TRNSYS ?

I have not encountered any errors referencing 'rc.exe' and do not have immediate ideas what may be causing them. Have you tried contacting your TR...

6 months ago
Reply
Answer to: Controlling a variable speed heat pump based on the flow needed for each building

When one or more of your outlets are closed, the total fraction out of all of the ports (as you've described it) will be less than 1.00. When this hap...

6 months ago
Page 3 / 11