[TRNSYS-users] Conversion from Trnsys15 to Trnsys16

I’m trying to convert Trnsys15 types to Trnsys16 types. So I followed the instructions from the manual:

My problem is that due to this conversion Trnsys mixes up the parameters for my type (Type154). I used the debugger to find out where is the problem. Next, I landed on Proc.for (I checked the parameters with quick watch, everything is ok) and from there I got to Exec.for where beings the checking of every unit in my simulation, everything is ok until I begin to check my type (written originally in Trnsys 15).

Proc.for(good parameters)→ Exec.for (good parameters)→CallTypes.for (good parameters)→TYPE00.for (good parameters)→TYPE154.for(mixed up parameters)→Exec.for(good parameters)

Has anyone had this problem before? Frankly I have no idea how to solve this.I've tried everything I could think of and nothing seems to be working.

From: trnsys-users-request@cae.wisc.edu <trnsys-users-request@cae.wisc.edu>
Subject: TRNSYS-users Digest, Vol 50, Issue 8
To: trnsys-users@cae.wisc.edu
Date: Wednesday, 4 February, 2009, 7:03 PM

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Today's Topics:

   1. Re: Meaning of simulation start time specified in the	control
      card (David Bradley)
   2. conductive heat flux (Marijke Steeman)
   3. TrnFlow (gizmoog)
   4. Units of Solar radiation (Artemi Spanaki)
   5. Re: Units of Solar radiation (Cramer Silkworth)

Chun Kwong,
You have to use the correct mode of Type89 (Type89d in this case). In TRNSYS 16, the start time is the hour of the year at the start of the simulation (0 to start at the very beginning of the year, 1 if you want to start on January 1 at 1AM, 744 if you want to start on February 1 at midnight). In TRNSYS 15 it was a bit different. If you are using TRNSYS 15, let me know and I will explain in more detail.
Regards,
David

a8304506@graduate.hku.hk wrote:

Dear Trnsys users.

I try to perform a simulation by specifying a simulation start time other than 0
or 1.  However, I find that the weather data read using Type89 seems to start
just from the beginning of the data file no matter what simulation start time I
have specified.  What is then the actual meaning of this start time?  If I want
to start a simulation not at the beginning of a year, what should I do?  Your
reply is highly appreciated.  Thank you!

Best Regards
LEE, Chun Kwong
Research assistant
Division of Building Science and Technology
City University of Hong Kong


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Dear TRNSYS-users,

Does someone know if it is possible to get the conductive heat flux

through a wall directly from TRNSYS? Or is it only possible to consider

the total heat flux and the heat flux forom radiation separate and then

subtract the first from the second.

Thanks in advance.

Best regards

ir-arch Marijke Steeman

Universiteit Gent
Vakgroep Architectuur en Stedebouw
Onderzoeksgroep Bouwfysica en Installaties
Jozef Plateaustraat 22
B- 9000 Gent
tel 09 264 37 52 / fax 09 264 41 85
marijke.steeman@ugent.be

Dear users,

Does anybody knows if Trnsys 17 leads to changes in trnflow ? I’d like to get
Trnflow but I don’t want to buy a new version in just a few months…

Olivier

Dear David and TRNSYS users

Thanks again for your helpful advice.

I think I found the reason that gives me strange results. I created a *.tm2 file of meteorological data using Meteonorm software. The created file gives the radiation in W/m^2. The component that reads this file (type109-TMY2), has by default the unit of solar radiation in kj/hrm^2. Have you got any idea about how can I change this, without changing the whole proforma (this is because the proforma has already a lot of changes that I don’t want to be change in this project).

Is there any way to view this *.tm2 file? (maybe another software?). I connect it with type65a, in order to view some data, but it seems to be quite different in comparison to the preview results of Meteonorm. I think that this is the reason that gives me “weird” results in my simulation.

Thank you for your helpful advices.

Best regards,

Artemi Spanaki

check out the rest of the Windows Live™. More than mail–Windows Live™ goes way beyond your inbox. More than messages

Artemi,

TMY2 files are just plain text files, you can open them in Notepad. However, due to the format, they're difficult to read like that. Excel can open them and be set up to split the data fields properly, or you can just use a template like this one: http://sel.me.wisc.edu/trnsys/weather/tmy2.xls

Type 109 knows that the input from a TMY2 file is in W/m2, and converts its output for kJ/hm2, you shouldn't have to change anything for it to work properly. What exactly is the problem you're getting?

-Cramer

J. Cramer Silkworth

Transsolar Climate Engineering

Technical consulting for energy efficiency and environmental quality in buildings.

145 Hudson Street

Suite 402

New York, NY 10013

Office: 212-219-2255

silkworth@transsolar.com