[TRNSYS-users] TRNSYS-users Digest, Vol 155, Issue 13

[Luis J. Claros]

Hello Sadjad,

Please find attached my paper about different PCM walls Types in TRNSYS. I
hope you find it useful.

Regards,

Luis

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2017-11-08 11:52 GMT+01:00 <trnsys-users-request at lists.onebuilding.org>:

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> Today's Topics:
>
>    1. PCMs integrated in walls or similar (Nika Gerbec)
>    2. Re: PCMs integrated in walls or similar (hotline)
>    3. Reflective insulation (Yossef Ibrahimi)
>    4. Re: Dynamic efficiency (Seyyed Tajdaran)
>
>
> ---------- Mensaje reenviado ----------
> From: Nika Gerbec <nikagerbec at gmail.com>
> To: trnsys-users at lists.onebuilding.org
> Cc:
> Bcc:
> Date: Wed, 8 Nov 2017 09:56:55 +0100
> Subject: [TRNSYS-users] PCMs integrated in walls or similar
> Hello
>
> I've been studying how PCM materials integrated in the walls can
> contribute to energy efficency of buildings. I am trying to simulate this
> with TRNSYS but I am missing a PCM type or modul for this.
>
> Does anybody has an experience working with PCMs and can share type with
> me?
>
> Thank you in advance
> Nika Gerbec
>
>
> ---------- Mensaje reenviado ----------
> From: hotline <hotline at transsolar.com>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Wed, 8 Nov 2017 09:02:28 +0000
> Subject: Re: [TRNSYS-users] PCMs integrated in walls or similar
>
> Dear Nika,
>
>
>
> what about TS nostand Type 399?
>
> http://www.trnsys.de/download/de/ts_type_399_en.pdf
>
>
>
> Best
> Jakob
>
>
>
>
> *__________________________________________________________________________________________________*
>
>
>
> *Jakob Merk M.Sc.*
>
>
>
> *Transsolar Energietechnik GmbH*
>
> Curiestraße 2
>
> 70563 Stuttgart
>
> http://www.transsolar.com
>
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> und Nutzerkomfort in Gebäuden*
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>
>
>
> *Von:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *Im
> Auftrag von *Nika Gerbec via TRNSYS-users
> *Gesendet:* 08 November 2017 09:57
> *An:* trnsys-users at lists.onebuilding.org
> *Cc:* Nika Gerbec <nikagerbec at gmail.com>
> *Betreff:* [TRNSYS-users] PCMs integrated in walls or similar
>
>
>
> Hello
>
>
>
> I've been studying how PCM materials integrated in the walls can
> contribute to energy efficency of buildings. I am trying to simulate this
> with TRNSYS but I am missing a PCM type or modul for this.
>
>
>
> Does anybody has an experience working with PCMs and can share type with
> me?
>
>
>
> Thank you in advance
>
> Nika Gerbec
>
>
> ---------- Mensaje reenviado ----------
> From: Yossef Ibrahimi <yossefibrahimi at yahoo.com>
> To: "TRNSYS Users Mailing List at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Wed, 8 Nov 2017 10:34:50 +0000 (UTC)
> Subject: [TRNSYS-users] Reflective insulation
> Hi,
>
> I try to model a roof with an "air gap" and "reflective insulation", but
> It's not possible to specify the longwave emission and the absorptance
> coefficient for each layer (TRNSYS 17).
> Shall I create a zone with a height=air gap above the roof, and use the
> carachteristics of the reflective insulation for the back side of the roof
> and front side of this aditionnal zone ?
>
> Best regards,
> Yossef
>
>
> ---------- Mensaje reenviado ----------
> From: Seyyed Tajdaran <stajdaran at brookes.ac.uk>
> To: Jeff Thornton <thornton at tess-inc.com>
> Cc: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Bcc:
> Date: Wed, 8 Nov 2017 10:52:11 +0000
> Subject: Re: [TRNSYS-users] Dynamic efficiency
> That's brilliant
>
> The thing I am just struggling to follow is, if for instance for a boiler
> the input value for the boiler efficiency is set and the Macro button is
> toggled, are we expecting the efficiency to stay fixed during the time? and
> how the macro is impleneted here. The problem is I can't find the
> documentation of Boiler's in 2017 version.
>
> [image: Inline images 1]
>
> On 7 November 2017 at 15:30, Jeff Thornton <thornton at tess-inc.com> wrote:
>
>> Sadjad,
>>
>> Absolutely that's how TRNSYS works.  TRNSYS models take time independent
>> values called PARAMETERS and time-dependent values called INPUTS together
>> to calculate the OUTPUTS from the model.  The inputs can be from another
>> model, set to a constant value, read from an external file, set by a
>> function etc.
>>
>> We have several "heating unit" models and they differ on how they
>> calculate the performance.  Most read a performance data file that returns
>> a value based on the inlet operating conditions.
>>
>> Jeff
>> TESS LLC
>>
>> Sent from my iPhone
>>
>> On Nov 7, 2017, at 3:40 AM, Seyyed Tajdaran via TRNSYS-users <
>> trnsys-users at lists.onebuilding.org> wrote:
>>
>> Hello all
>>
>> I am looking into use TRNSYS for dynamic simulation. However, I am
>> struggling to find out if the software actually works in a dynamic
>> condition. To be specific I would like to know if the efficiency of a
>> heating unit is calculated as a function of the relevant parameters (i.e.
>> time, temperature, pressure)???
>>
>>
>> Warm regards,
>> Sadjad
>> --
>> *Sadjad Tajdaran*
>> PhD Candidate | Research Assistant
>>
>> Oxford Brookes University, School of Architecture, Faculty of Technology
>> Design and Environment
>> Architectural Engineering Group
>> JP203, John Payne Building,Headington Campus, Gipsy Lane, Oxford, UK,
>> OX3 0BP
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>> TRNSYS-users at lists.onebuilding.org
>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>
>>
>
>
> --
> *Sadjad Tajdaran*
> Research Assistant | PhD candidate
>
> Oxford Brookes University,  Faculty of Technology Design and Environment
> Architectural Engineering Group and DYNAMO Project Group
> JP204, John Payne Building, Headington Campus, Gipsy Lane, Oxford, UK,
> OX3 0BP
> R201, R Building, Wheatley Campus, Wheatley, Oxford, OX33 1HX
>
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