[TRNSYS-users] Question on Type 15-1 (TMY Weather file)

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Hello TRNSYS Users,

I am trying to simulate a simple building (BESTEST Case 600) and I am getting quite odd results. I believe that my mistake is in the connection between Type 15-1 (TMY Weather file) and Type 56 (Multi-zone building). I would like to ask whether there is any tutorial online or any example in the program's documentation folder on how to connect weather files to Type 56 for multi-zone building simulation.

Thank you.

Kind Regards,

Eirini

Eirini Mantesi
Research Engineer
School of Civil and Building Engineering
Loughborough University
T: +447462665904
E: E.Mantesi at lboro.ac.uk

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Dear Eirini,
you can find an example in your TRNSYS directory under ...\Examples\Restaurant\Restaurant.tpf
It also uses types 15 and 56...

Best regards
Jakob Merk

_________________________________________________________________________________________________

Jakob Merk
TRNSYS Software Team

Transsolar Energietechnik GmbH
Curiestra?e 2
70563 Stuttgart
Fax: +49 711 67976-45
Email: hotline at transsolar.com
Web: www.trnsys.de

Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Eirini Mantesi
Gesendet: Montag, 22. Februar 2016 16:43
An: TRNSYS users mailing list at OneBuilding.org
Betreff: [TRNSYS-users] Question on Type 15-1 (TMY Weather file)

Hello TRNSYS Users,

I am trying to simulate a simple building (BESTEST Case 600) and I am getting quite odd results. I believe that my mistake is in the connection between Type 15-1 (TMY Weather file) and Type 56 (Multi-zone building). I would like to ask whether there is any tutorial online or any example in the program's documentation folder on how to connect weather files to Type 56 for multi-zone building simulation.

Thank you.

Kind Regards,

Eirini

Eirini Mantesi
Research Engineer
School of Civil and Building Engineering
Loughborough University
T: +447462665904
E: E.Mantesi at lboro.ac.uk

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Hi Jakob,

Thank you for your prompt response.

Unfortunately, both the restaurant and the sunspace examples use Type 15-6 and Type 15-2 (TMY-2). My problem is that when I replace to Type 15-1 (TMY), my heating demand is increased, but remains within the BESTEST range, while my cooling demand is significantly below the BESTEST results. That's how I concluded that most probably I am doing something wrong in the connection of the weather file and the solar radiation available in the building's surfaces.

Thank you for your help anyway.

Kind Regards,

Eirini

Eirini Mantesi
Research Engineer
School of Civil and Building Engineering
Loughborough University
T: +447462665904
E: E.Mantesi at lboro.ac.uk

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dear all ;
how can i control run this circled heat pump to work on heating mode in winter and cooling mode in summer.
best regards

#yiv2273677580 #yiv2273677580 -- P {margin-top:0;margin-bottom:0;}#yiv2273677580 Hi?Jakob,
Thank you for your prompt?response.
Unfortunately,?both?the restaurant?and the sunspace examples use?Type 15-6 and Type 15-2 ?(TMY-2). My problem is that when I replace to Type 15-1 (TMY), my heating demand is increased, but remains within the BESTEST range, while my?cooling demand is significantly below?the BESTEST results. That's how I concluded that most probably I am doing something wrong in the connection of the weather file and the solar radiation available in the building's surfaces.
Thank you for your help?anyway.
Kind Regards,Eirini
Eirini Mantesi
Research Engineer
School of?Civil and Building Engineering
Loughborough University
T: +447462665904
E: E.Mantesi at lboro.ac.uk

MOHAMMAD MATARNEH's picture
Joined: 2016-04-05
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Mohammad,
The simplest way would be to define two equations one of which has a
value of 1 during the time period when you want to allow cooling and the
other of which has a value of 1 during the heating time period. For example:

isSummer = AND(GT(TIME,3000),LT(TIME,5000))
isWinter = 1-isSummer

You then connect the result of these equations to the appropriate heat
pump inputs. The above equations would allow cooling between hour 3000
and 5000 of the simulation and would allow heating at all other times.
You have to be a bit more careful with your equation if you want to run
multiyear simulations.
kind regards,
David

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Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
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