My question is: during the simulation, I very frequently get the error shown in the attached picture. Does anyone know why this error appears?

Thank you very much

While the values you are getting are not exactly the same as printed in the tutorial .pdf, they are close enough to give me confidence you understood the tutorial and followed it correctly. My best guess is a small update may have been made to the weather data reader, the solar collector, or another tutorial component since the .pdf was created, and the values printed in the pdf were not revised accordingly.

Most bug fixes and enhancements that have changed between Trnsys18 releases are logged in the release notes, which you can read by opening the 'readme' file in your main Trnsys18 directory. Unfortunately, I don't know which release version of Trnsys18 was used for the tutorial .pdf, but any release notes pertaining to Type 1, Type 15, or weather file or radiation data processing might give a clue.

You can check your TRNSYS release version by opening Simulation Studio, clicking the '?' in the top menu, and selecting 'About ...'; on the splash screen that follows, at the bottom center, the number following Trnsys Version: gives the release version you are using. 

For reference, I opened Trnsys18.06.0002, ran the example 'Begin' for 168 hours without any other revisions, and got +0.2701936406946902E+006 and +0.3164063593053098E+006 for Qcollector and Qauxiliary, respectively - somewhere between your results and the results published in the tutorial. 

I am using TRNSYS 18 and I am currently following the manual tutorial, specifically Tutorial 9, Section 9.2: “Creating a Simple TRNSYS Project.”

I have followed the instructions carefully step by step, but at the end of the tutorial I am getting results that are different from the results shown in the manual. I have repeated the tutorial twice now, and I am still getting the same incorrect/different results.

I have attached screenshots of the results I am getting, along with my project/input files, so that you can see what I have done.

Could someone please help me check what I might be doing wrong? I would really appreciate any guidance, especially on whether my component connections, parameters, or output setup are incorrect.

Thank you very much

~david

I found a TESS data file for Yazaki Single Effect absorption chiller name Yazaki20-50ton(OneStage)S3.dat.

C:\TRNSYS18\Tess Models\SampleCatalogData\AbsorptionChiller\Single-Effect\Yazaki Model\Yazaki20-50ton(OneStage)S3.dat

I believe it is the hot water fired WFC-SC version 20, 30 and 50 tons.

The file includes 9 Hot water inlet temperatures + fraction of nominal capacity at these 9 HW inlet temperatures.

However I am wondering how to use the file since TYPE107 asks for a more detailed file including:

- Number of CW steps in data file

- Number of CHW setpoints in data file

Best regards,