[TRNSYS-users] R: I: different results with data reader

Thanks so much David. I will keep “play” with this Type. Is my first work on Trnsys and so i have a lot of problem (unforunately).

Regards,

Chiara

Inviato da Posta per Windows 10

Da: David BRADLEY via TRNSYS-users
Inviato: lunedì 5 febbraio 2018 17:35
A: chiara pinto via TRNSYS-users
Cc: David BRADLEY
Oggetto: Re: [TRNSYS-users] I: different results with data reader

Chiara,

It is not really possible to diagnose the problem without playing around with the project. It can sometimes be hard to set the Type9 parameters correctly. I would start off by setting the time step of the simulation to the data interval that you have specified as one of Type9's parameters. This will remove the impact of the interpolate/don't interpolate switch. My best advice (unfortunately) is to keep messing around with the Type9 parameters until you get the outputs that you're expecting.

kind regards,

David

On 02/05/2018 10:02, chiara pinto via TRNSYS-users wrote:

Inviato da Posta per Windows 10

Da: chiara pinto via TRNSYS-users
Inviato: giovedì 1 febbraio 2018 12:53
A: trnsys-users@lists.onebuilding.org
Cc: chiara pinto
Oggetto: [TRNSYS-users] different results with data reader

Hi everyone,

i have some problems with type 9e. I want to make a comparison between two thermal powers, calculated using the same starting data (istantaneous values) but in different ways. One of the Thermal powers has been determineted on Excel and then imported on trnsys (type 9e) and collegates with online plotter. For the other one, i have inserted a new equation on trnsys where both the inputs that the formula are the same as the previous case. Essentially the only differencech is the program that i use to calculate each of them.

But, when i run the simulation, i see that there are different values. How is this possible? Does anyone know what could be the problem? I use mode 2 for data Readers and i chose to interpolate the data. Could be this the problem?

Thanks a lot for the attention.

Regards,

Chiara

Inviato da Posta per Windows 10
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David BRADLEY

Principal

Thermal Energy Systems Specialists, LLC

22 North Carroll Street - suite 370

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