[TRNSYS-users] Set 2 or more than 2 AIRNODES

王洋 wanghongyang1767 at gmail.com
Fri Jul 29 01:30:05 PDT 2011


Dear Angela,

         Many thanks for your quick and patient reply!

        There is still one question: do you mean we only can define the
multi-airnode using TRNSYS3D model? Can't normal TRNSYS thermal model or
TRNSYS 16 work?

        Thanks again!

        Br

        wang

2011/7/27 <trnsys-users-request at cae.wisc.edu>

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> Today's Topics:
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>   1. Set 2 or more than 2 AIRNODES (??)
>   2. Re: Set 2 or more than 2 AIRNODES (Angela Dr?scher)
>
>
> ---------- 已转发邮件 ----------
> From: 王洋 <wanghongyang1767 at gmail.com>
> To: trnsys-users at cae.wisc.edu
> Date: Wed, 27 Jul 2011 16:44:48 +0200
> Subject: [TRNSYS-users] Set 2 or more than 2 AIRNODES
> Dear all,
>
>        As we know, the default airnode for one zone is one airnode. But I
> want to set 2 or more than 2 airnodes in one zone. Please tell me the
> detailed steps how to set 2 or more than 2 airnodes in one zone?
>
>        Furthermore, if I set more than 2 nodes, which advantages has
> it better than only one node in one zone?
>
>       Many thanks in advance!
>
>     Br.
>
> wang
>
>
> 2011/7/26 王洋 <wanghongyang1767 at gmail.com>
>
>>
>>
>>   2011/7/25 王洋 <wanghongyang1767 at gmail.com>
>>
>>>
>>>
>>> 2011/7/22 <trnsys-users-request at cae.wisc.edu>
>>>
>>>> Send TRNSYS-users mailing list submissions to
>>>>        trnsys-users at cae.wisc.edu
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>>>> or, via email, send a message with subject or body 'help' to
>>>>        trnsys-users-request at cae.wisc.edu
>>>>
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>>>>
>>>> When replying, please edit your Subject line so it is more specific
>>>> than "Re: Contents of TRNSYS-users digest..."
>>>>
>>>> Today's Topics:
>>>>
>>>>   1. Re: Superheated Steam Properties (Jeff Thornton)
>>>>   2. Re: sloping surfaces (David BRADLEY)
>>>>   3. Re: Number of Labels (David BRADLEY)
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: "Jeff Thornton" <thornton at tess-inc.com>
>>>> To: farah.gammoh at industrial-solar.de, trnsys-users at cae.wisc.edu
>>>> Date: Thu, 21 Jul 2011 12:26:44 -0500 (CDT)
>>>> Subject: Re: [TRNSYS-users] Superheated Steam Properties
>>>> Farah,
>>>>
>>>> The steam_props subroutine does subcooled, saturated and superheated
>>>> steam.  Check the documentation for the details.  To get the enthalpy,
>>>> simply provide two state properties to the subroutine (T and P, T and S,
>>>> etc.)
>>>>
>>>> Jeff
>>>>
>>>>
>>>>
>>>> Jeff Thornton
>>>> President - TESS, LLC
>>>>
>>>> 22 North Carroll Street - Suite 370
>>>> Madison WI 53703 USA
>>>>
>>>> Phone: 608-274-2577
>>>> Fax: 608-278-1475
>>>> E-mail: thornton at tess-inc.com
>>>> Web: www.tess-inc.com
>>>>
>>>>
>>>>
>>>> *----- Original Message -----*
>>>> *From:* "Farah Gammoh" <farah.gammoh at industrial-solar.de>
>>>> *Sent:* Thu, July 21, 2011 11:25
>>>> *Subject:* [TRNSYS-users] Superheated Steam Properties
>>>> **
>>>>
>>>> Hello,
>>>>
>>>> Could anyone tell me how to retrieve properties (enthalpy) of
>>>> superheated steam? i assume steam_props() is for saturated steam only,
>>>> right?
>>>>
>>>> Thanks in advance,
>>>> Farah
>>>>
>>>> _______________________________________________
>>>> TRNSYS-users mailing listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: David BRADLEY <d.bradley at tess-inc.com>
>>>> To: "Marcus.Joppich" <Marcus.Joppich at fh-zwickau.de>
>>>> Date: Fri, 22 Jul 2011 09:33:18 -0500
>>>> Subject: Re: [TRNSYS-users] sloping surfaces
>>>> **
>>>> Marcus,
>>>>   Vertical walls should have a slope of 90, not a slope of zero. Slopes
>>>> are measured from the horizontal. A zero slope indicates a horizontal
>>>> surface.
>>>> Kind regards,
>>>>  david
>>>>
>>>>
>>>> On 7/21/2011 08:01, Marcus.Joppich wrote:
>>>>
>>>>  Hello David,****
>>>>
>>>> ** **
>>>>
>>>> thank you for your answer. I´ve tried it. The following steps were
>>>> performed:****
>>>>
>>>> ** **
>>>>
>>>> I defined 6 orientations of walls to external: Northwest (Wall to
>>>> external)/ Southeast (Wall to external)/ Northeast (Wall to external)/
>>>> Northwest with a slope of 37 degrees (sloping roof)/ Southeast with a slope
>>>> of 37 degrees (sloping roof)/ Northeast with a slope of 37 degrees (sloping
>>>> roof).****
>>>>
>>>> ** **
>>>>
>>>> At Type109 I defined 6 surfaces with the following parameters:****
>>>>
>>>> Surface1/Slope of surface 0/Azimuth of surface 225****
>>>>
>>>> Surface2/Slope of surface 0/Azimuth of surface 135****
>>>>
>>>> Surface3/Slope of surface 0/Azimuth of surface 315****
>>>>
>>>> Surface4/Slope of surface 37/Azimuth of surface 225****
>>>>
>>>> Surface5/Slope of surface 37/Azimuth of surface 135****
>>>>
>>>> Surface6/Slope of surface 37/Azimuth of surface 315****
>>>>
>>>> ** **
>>>>
>>>> Then I connected the outputs with the inputs by Type56. ****
>>>>
>>>> ** **
>>>>
>>>> Is it the right way?****
>>>>
>>>> ** **
>>>>
>>>> I get a fatal error: “Error in automatic heat transfer calculation  for
>>>> surface   1 or its adjacent surface!: Automatic heat transfer calculation is
>>>> only allowed on surfaces within a zone.  Please check building input file
>>>> (.bui)”, but I think it has a different reason.****
>>>>
>>>> Thank you for your help.****
>>>>
>>>> ** **
>>>>
>>>> Regards, Marcus****
>>>>
>>>> ** **
>>>>
>>>> ** **
>>>>
>>>> ** **
>>>>
>>>> *Von:* David BRADLEY [mailto:d.bradley at tess-inc.com<d.bradley at tess-inc.com>]
>>>>
>>>> *Gesendet:* Mittwoch, 20. Juli 2011 19:12
>>>> *An:* Marcus.Joppich
>>>> *Cc:* trnsys-users at cae.wisc.edu
>>>> *Betreff:* Re: [TRNSYS-users] sloping surfaces****
>>>>
>>>> ** **
>>>>
>>>> Marcus,
>>>>  It depends somewhat on what component you are using to model the attic.
>>>> However, almost without exception, you need to define the slope and azimuth
>>>> of the attic roof surfaces in your weather component (Type15 probably) and
>>>> then pass the appropriate solar radiation outputs from that component to the
>>>> appropriate inputs of your building component.
>>>> Regards,
>>>>  David
>>>>
>>>>
>>>> On 7/20/2011 06:57, Marcus.Joppich wrote: ****
>>>>
>>>> Hello TRNSYS-users,****
>>>>
>>>>  ****
>>>>
>>>> I try to simulate few rooms in an attic. I don´t understand how I can
>>>> describe a sloping surface (like a sloping roof) with TRNSYS. Maybe you can
>>>> help me.****
>>>>
>>>>  ****
>>>>
>>>> Thanks for your time.****
>>>>
>>>>  ****
>>>>
>>>> Marcus****
>>>>
>>>> ** **
>>>>
>>>> ** **
>>>>
>>>> _______________________________________________****
>>>>
>>>> TRNSYS-users mailing list****
>>>>
>>>> TRNSYS-users at cae.wisc.edu****
>>>>
>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users****
>>>>
>>>>
>>>>
>>>> ****
>>>>
>>>> -- ****
>>>>
>>>> *******************************
>>>>
>>>> David BRADLEY****
>>>>
>>>> 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****
>>>>
>>>> http://www.trnsys.com****
>>>>
>>>>
>>>> --
>>>> ***************************
>>>> David BRADLEY
>>>> Principal
>>>> Thermal Energy Systems Specialists, LLC
>>>> 22 North Carroll Street - suite 370
>>>> Madison, WI  53703 USA
>>>>
>>>> P:+1.608.274.2577
>>>> F:+1.608.278.1475d.bradley at tess-inc.com
>>>> http://www.tess-inc.comhttp://www.trnsys.com
>>>>
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: David BRADLEY <d.bradley at tess-inc.com>
>>>> To: Baboo Gowreesunker <Baboo.Gowreesunker at brunel.ac.uk>
>>>> Date: Fri, 22 Jul 2011 09:39:19 -0500
>>>> Subject: Re: [TRNSYS-users] Number of Labels
>>>> **
>>>> Baboo,
>>>>   I think that limitation is only in the Studio. TRNSYS components can
>>>> have as many labels as needed. If you can give me a bit more information
>>>> about what you are using the labels for, I might be able to suggest a
>>>> workaround. For example, a lot of the TRNSYS printer components (Type25,
>>>> Type49, Type65) do not need input initial values so instead we treat those
>>>> as labels.
>>>> Best,
>>>>  David
>>>>
>>>>
>>>> On 7/20/2011 10:40, Baboo Gowreesunker wrote:
>>>>
>>>>  Can we add more than 5 labels in TRNSYS components****
>>>>
>>>> ** **
>>>>
>>>> Lesh****
>>>>
>>>> ** **
>>>>
>>>>
>>>> _______________________________________________
>>>> TRNSYS-users mailing listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>
>>>>
>>>> --
>>>> ***************************
>>>> David BRADLEY
>>>> Principal
>>>> Thermal Energy Systems Specialists, LLC
>>>> 22 North Carroll Street - suite 370
>>>> Madison, WI  53703 USA
>>>>
>>>> P:+1.608.274.2577
>>>> F:+1.608.278.1475d.bradley at tess-inc.com
>>>> http://www.tess-inc.comhttp://www.trnsys.com
>>>>
>>>>
>>>> _______________________________________________
>>>> TRNSYS-users mailing list
>>>> TRNSYS-users at cae.wisc.edu
>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>
>>>>
>>>
>>
>
>
> ---------- 已转发邮件 ----------
> From: "Angela Dröscher" <angela.droescher at tugraz.at>
> To: trnsys-users at cae.wisc.edu
> Date: Wed, 27 Jul 2011 18:22:20 +0200
> Subject: Re: [TRNSYS-users] Set 2 or more than 2 AIRNODES
> Dear Wang,
>
> @ advantages of multi-airnode zones:
> Please refer to the 3D Building Tutorial, p.20: multiple airnodes are
> combined to one radiative zone (i.e. radiation through a window of the
> topmost airnode is not trapped there but also reaches the airnodes/walls
> below) whereas each airnode remains an own convective zone. Thus, thermal
> stratification, e.g. in an atrium, can be modelled.
>
> @ definition of a multi-airnode zone: in your 3D-model you have to define
> the adjacent walls between the zones that afterwards shall be combined to
> one zone as "virtual surface", they are not imported into TRNBuild (see
> explanation in the 3D Building Tutorial, p.15).
> After importing in TRNBuild, you have to move the airnodes into one zone as
> follows:
> 1. open the Zone-Window for the airnode to be moved
> 2. click the button with the bent arrow right below the name of the zone
> (see attatched screenshot) and a window named "move active airnode" will
> open
> 3. choose the target zone, click ok
>
> You will notice that there appears a new button in the zone window named
> coupling (also see attatched screenshot). As there is no adjacent wall
> between the airnodes in the zone, this is the way coupling can be defined
> for airnodes in a multi-airnode zone.
>
>
> Best regards,
> Angela
>
> --
> Technische Universität Graz
> Institut für Wärmetechnik
> Inffeldgasse 25/B
> A-8010 Graz
> Tel.: (+43) 316 873 7307
> Fax: (+43) 316 873 7305
> http://www.iwt.tugraz.at
>
>
> Am 27.07.2011 16:44, schrieb 王洋:
>
>> Dear all,
>>        As we know, the default airnode for one zone is one airnode. But I
>> want to set 2 or more than 2 airnodes in one zone. Please tell me the
>> detailed steps how to set 2 or more than 2 airnodes in one zone?
>>        Furthermore, if I set more than 2 nodes, which advantages has it
>> better than only one node in one zone?
>>       Many thanks in advance!
>>     Br.
>> wang
>>
>>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
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>
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