[TRNSYS-users] TRNSYS-users Digest, Vol 83, Issue 7
王洋
wanghongyang1767 at gmail.com
Wed Nov 2 07:09:53 PDT 2011
Dear Angela,
Thanks your reminding!
But I am not familiar with how to use type2d.
Please tell you details for how to connect input and output of Type 2d
and parameters setting?
Thanks in advance!
wang
2011/11/2 <trnsys-users-request at cae.wisc.edu>
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> Today's Topics:
>
> 1. Re: EQUATION (Angela Dr?scher)
> 2. (no subject) (KWSTANTINOS MARAGOGIANNIS)
> 3. Re: TRNSYS-users Digest, Vol 83, Issue 6 (??)
>
>
> ---------- 已转发邮件 ----------
> From: "Angela Dröscher" <angela.droescher at tugraz.at>
> To: trnsys-users at cae.wisc.edu
> Date: Wed, 02 Nov 2011 14:28:06 +0100
> Subject: Re: [TRNSYS-users] EQUATION
> Wang,
>
> in a simple equation with LT and GE you won't be able to realize a
> controller with a hysteresis (at least it seems that's what you want) - if
> possible at all I guess you would additionally need Type93 to get the value
> of OF from the previous timestep.
>
> Why don't you use a controller with hysteresis such as Type2d?
>
> Best regards,
> Angela
>
>
> Am 02.11.2011 14:03, schrieb 王洋:
>
>> Dear all,
>>
>> Please tell me how to set an equation:
>>
>> OF=1, when CO2%>1000
>>
>> OF = 0, when CO2%< 700
>> I tried to use LT and GE, but e.g. it only realize OF = 1, when CO2%>1000
>> and OF = 0, when CO2% < 1000.
>> I need
>> OF=1, when CO2%>1000
>>
>> OF = 0, when CO2%< 700
>>
>> Thanks in advance!
>>
>> wang
>>
>
>
>
> ---------- 已转发邮件 ----------
> From: KWSTANTINOS MARAGOGIANNIS <kws_maras at hotmail.com>
> To: <trnsys-users at cae.wisc.edu>
> Date: Wed, 2 Nov 2011 15:34:28 +0200
> Subject: [TRNSYS-users] (no subject)
> Dear all,
>
> i will be thankfull if anyone could answer me how i can set the cooling
> system working only daytime (6am - 8pm) and how i can do that.
> i am looking forward to a prompt reply.
>
> thank you in advance,
> Maragogiannis Kostantinos
>
>
> ---------- 已转发邮件 ----------
> From: 王洋 <wanghongyang1767 at gmail.com>
> To: trnsys-users at cae.wisc.edu, Laia Cases - iMat <lcases at imat.cat>
> Date: Wed, 2 Nov 2011 14:55:58 +0100
> Subject: Re: [TRNSYS-users] TRNSYS-users Digest, Vol 83, Issue 6
>
> Dear Laia Cases,
>
> Many thanks!
>
>
> For OF=GT(CO2,1000)*1+GT(700,CO2)*0
> GT(700,CO2)*0 is always 0.
>
> I think it should be OF=GT(CO2,1000)*1+GT(CO2,700)*1
>
> But the result becomes CO2 ia always less than 700, it can not get to 1000.
>
> So PLEASE pass me some ideas or EQUATIONS: first, get to 1000 ppm, then
> OF=1, until 700 ppm OF = 0
>
>
> Many thanks in advance!
>
> Br.
>
> wang
>
>
>
>
> 2011/11/2 <trnsys-users-request at cae.wisc.edu>
>
>> Send TRNSYS-users mailing list submissions to
>> trnsys-users at cae.wisc.edu
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>> or, via email, send a message with subject or body 'help' to
>> trnsys-users-request at cae.wisc.edu
>>
>> You can reach the person managing the list at
>> trnsys-users-owner at cae.wisc.edu
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of TRNSYS-users digest..."
>>
>> Today's Topics:
>>
>> 1. Re: EQUATION (Laia Cases - iMat)
>>
>>
>> ---------- 已转发邮件 ----------
>> From: Laia Cases - iMat <lcases at imat.cat>
>> To: trnsys-users at cae.wisc.edu
>> Date: Wed, 02 Nov 2011 14:07:11 +0100
>> Subject: Re: [TRNSYS-users] EQUATION
>> Wang,
>>
>> OF=GT(CO2,1000)*1+GT(700,CO2)*0
>>
>> Laia
>>
>> El 02/11/2011 14:03, 王洋 escribió:
>>
>> Dear all,
>>
>> Please tell me how to set an equation:
>>
>> OF=1, when CO2%>1000
>>
>> OF = 0, when CO2%< 700
>>
>> I tried to use LT and GE, but e.g. it only realize OF = 1, when
>> CO2%>1000 and OF = 0, when CO2% < 1000.
>>
>> I need
>> OF=1, when CO2%>1000
>>
>> OF = 0, when CO2%< 700
>>
>> Thanks in advance!
>>
>> wang
>>
>> 在 2011年11月2日 下午12:19， <trnsys-users-request at cae.wisc.edu>写 道：
>>
>>> Send TRNSYS-users mailing list submissions to
>>> trnsys-users at cae.wisc.edu
>>>
>>> To subscribe or unsubscribe via the World Wide Web, visit
>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>> or, via email, send a message with subject or body 'help' to
>>> trnsys-users-request at cae.wisc.edu
>>>
>>> You can reach the person managing the list at
>>> trnsys-users-owner at cae.wisc.edu
>>>
>>> When replying, please edit your Subject line so it is more specific
>>> than "Re: Contents of TRNSYS-users digest..."
>>>
>>> Today's Topics:
>>>
>>> 1. EQUATION (??)
>>> 2. Re: air Density in TRNBuild (Mohamed Ayman)
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: 王洋 <wanghongyang1767 at gmail.com>
>>> To: trnsys-users at cae.wisc.edu
>>> Date: Wed, 2 Nov 2011 12:16:37 +0100
>>> Subject: [TRNSYS-users] EQUATION
>>> Dear all,
>>>
>>> Please tell me how to set an equation:
>>>
>>> OF=1, when CO2%>1000
>>>
>>> OF = 0, when CO2%< 700
>>>
>>> Thanks!
>>>
>>> wang
>>>
>>> 在 2011年11月2日 下午12:14，王洋 <wanghongyang1767 at gmail.com>写 道：
>>>
>>>> Dear all,
>>>>
>>>> Which experts can tell me a question about air density?
>>>>
>>>> In TRNbuild PROPERTIES about air density 1.2 kg/m^3: Is it a
>>>> initial value? If outdoor temperature changes in TrnFlow, this air density
>>>> value will change as the teperature or it is a constant?
>>>>
>>>> Thanks!
>>>>
>>>> wang
>>>>
>>>>
>>>>
>>>> 2011/11/1 <trnsys-users-request at cae.wisc.edu>
>>>>
>>>>> Send TRNSYS-users mailing list submissions to
>>>>> trnsys-users at cae.wisc.edu
>>>>>
>>>>> To subscribe or unsubscribe via the World Wide Web, visit
>>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>> or, via email, send a message with subject or body 'help' to
>>>>> trnsys-users-request at cae.wisc.edu
>>>>>
>>>>> You can reach the person managing the list at
>>>>> trnsys-users-owner at cae.wisc.edu
>>>>>
>>>>> When replying, please edit your Subject line so it is more specific
>>>>> than "Re: Contents of TRNSYS-users digest..."
>>>>>
>>>>> Today's Topics:
>>>>>
>>>>> 1. Re: Information (David BRADLEY)
>>>>>
>>>>>
>>>>> ---------- 已转发邮件 ----------
>>>>> From: David BRADLEY <d.bradley at tess-inc.com>
>>>>> To: "Adriana Gómez Aldana" <adrigomezaldana at gmail.com>
>>>>> Date: Tue, 01 Nov 2011 11:35:52 -0500
>>>>> Subject: Re: [TRNSYS-users] Information
>>>>> Adriana,
>>>>> I had thought that I sent a response about this. In case it did not
>>>>> get to you, here it is again:
>>>>>
>>>>> ...
>>>>> It would help to know a bit more about the configuration of your
>>>>> system: what are you drying, is the material in a big lump, is it spread
>>>>> out on shelves, is it moving, does it occupy most of the available space in
>>>>> the chamber or a comparatively small part of the space, etc.)
>>>>>
>>>>> I think you could probably use the Type56 multi-zone building model
>>>>> for the drying chamber itself.
>>>>>
>>>>> I would guess that you would need to write a new model for the
>>>>> material that you are drying. If the material is quite spread-out then this
>>>>> might be easily enough characterized by a first-order differential equation
>>>>> and you even might be able to use Tess Type693. Type693 is intended to
>>>>> model a thermal lumped capacitance that heats and cools according to a
>>>>> first-order differential equation but I imagine that pricipals are
>>>>> basically the same whether you are talking about thermal capacitance or
>>>>> moisture capacitance.
>>>>>
>>>>> If the product is not spread out, if important moisture gradients
>>>>> develop within it as it dries, or if its drying process is exothermic (like
>>>>> it is for compost) then I think you would need to write your own model or
>>>>> collaborate with someone who could write the model for you. In order to
>>>>> write the model you would need to have access to a FORTRAN compiler such as
>>>>> Intel Visual Fortran v11.x
>>>>>
>>>>> Once you have the model of the drying substance, you would connect
>>>>> its moisture loss to a moisture gain input of the building (drying chamber)
>>>>> model.
>>>>>
>>>>> Kind regards,
>>>>> David
>>>>>
>>>>> On 10/30/2011 20:45, Adriana Gómez Aldana wrote:
>>>>>
>>>>>
>>>>>
>>>>> Good Morning,
>>>>>
>>>>> I am a TRNSYS user since it is one of the tools for my phD thesis.
>>>>> Currently, I am working in a solar drying problem and I would like to know
>>>>> if there is a special module to simulate the drying chamber. If it is
>>>>> possible to acquire this module, I would be very thankful if you can
>>>>> explain me how is the procedure to access it.
>>>>>
>>>>> Thanks for your attention,
>>>>>
>>>>> Adriana Gómez
>>>>> phD Student - Engineering Department
>>>>> Universidad de los Andes
>>>>> Bogotá, Colombia
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> 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: Mohamed Ayman <ayman.mohamed at aalto.fi>
>>> To: 王洋 <wanghongyang1767 at gmail.com>, "trnsys-users at cae.wisc.edu" <
>>> trnsys-users at cae.wisc.edu>
>>> Date: Wed, 2 Nov 2011 11:18:54 +0000
>>> Subject: Re: [TRNSYS-users] air Density in TRNBuild
>>>
>>> Hi Wang
>>>
>>> The air density changes with temperature in Trnbuild.
>>>
>>> Best Regards
>>>
>>> Ayman Mohamed
>>>
>>>
>>>
>>> *From:* trnsys-users-bounces at cae.wisc.edu [mailto:
>>> trnsys-users-bounces at cae.wisc.edu] *On Behalf Of *??
>>> *Sent:* Wednesday, November 02, 2011 1:14 PM
>>> *To:* trnsys-users at cae.wisc.edu
>>> *Subject:* [TRNSYS-users] air Density in TRNBuild
>>>
>>>
>>>
>>> Dear all,
>>>
>>>
>>>
>>> Which experts can tell me a question about air density?
>>>
>>>
>>>
>>> In TRNbuild PROPERTIES about air density 1.2 kg/m^3: Is it a
>>> initial value? If outdoor temperature changes in TrnFlow, this air density
>>> value will change as the teperature or it is a constant?
>>>
>>>
>>>
>>> Thanks!
>>>
>>>
>>>
>>> wang
>>>
>>>
>>>
>>>
>>>
>>> 2011/11/1 <trnsys-users-request at cae.wisc.edu>
>>>
>>> Send TRNSYS-users mailing list submissions to
>>> trnsys-users at cae.wisc.edu
>>>
>>> To subscribe or unsubscribe via the World Wide Web, visit
>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>> or, via email, send a message with subject or body 'help' to
>>> trnsys-users-request at cae.wisc.edu
>>>
>>> You can reach the person managing the list at
>>> trnsys-users-owner at cae.wisc.edu
>>>
>>> When replying, please edit your Subject line so it is more specific
>>> than "Re: Contents of TRNSYS-users digest..."
>>>
>>> Today's Topics:
>>>
>>> 1. Re: Information (David BRADLEY)
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: David BRADLEY <d.bradley at tess-inc.com>
>>> To: "Adriana Gómez Aldana" <adrigomezaldana at gmail.com>
>>> Date: Tue, 01 Nov 2011 11:35:52 -0500
>>> Subject: Re: [TRNSYS-users] Information
>>>
>>> Adriana,
>>> I had thought that I sent a response about this. In case it did not
>>> get to you, here it is again:
>>>
>>> ...
>>> It would help to know a bit more about the configuration of your
>>> system: what are you drying, is the material in a big lump, is it spread
>>> out on shelves, is it moving, does it occupy most of the available space in
>>> the chamber or a comparatively small part of the space, etc.)
>>>
>>> I think you could probably use the Type56 multi-zone building model
>>> for the drying chamber itself.
>>>
>>> I would guess that you would need to write a new model for the
>>> material that you are drying. If the material is quite spread-out then this
>>> might be easily enough characterized by a first-order differential equation
>>> and you even might be able to use Tess Type693. Type693 is intended to
>>> model a thermal lumped capacitance that heats and cools according to a
>>> first-order differential equation but I imagine that pricipals are
>>> basically the same whether you are talking about thermal capacitance or
>>> moisture capacitance.
>>>
>>> If the product is not spread out, if important moisture gradients
>>> develop within it as it dries, or if its drying process is exothermic (like
>>> it is for compost) then I think you would need to write your own model or
>>> collaborate with someone who could write the model for you. In order to
>>> write the model you would need to have access to a FORTRAN compiler such as
>>> Intel Visual Fortran v11.x
>>>
>>> Once you have the model of the drying substance, you would connect its
>>> moisture loss to a moisture gain input of the building (drying chamber)
>>> model.
>>>
>>> Kind regards,
>>> David
>>>
>>> On 10/30/2011 20:45, Adriana Gómez Aldana wrote:
>>>
>>>
>>>
>>> Good Morning,
>>>
>>>
>>>
>>> I am a TRNSYS user since it is one of the tools for my phD thesis.
>>> Currently, I am working in a solar drying problem and I would like to know
>>> if there is a special module to simulate the drying chamber. If it is
>>> possible to acquire this module, I would be very thankful if you can
>>> explain me how is the procedure to access it.
>>>
>>>
>>>
>>> Thanks for your attention,
>>>
>>>
>>>
>>> Adriana Gómez
>>>
>>> phD Student - Engineering Department
>>>
>>> Universidad de los Andes
>>>
>>> Bogotá, Colombia
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>>
>>> 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
>>>
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at cae.wisc.edu
>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>
>>>
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at cae.wisc.edu
>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>
>>>
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
>>
>> --
>> *Laia Cases*
>> Unitat de Condicionament Tèrmic
>> *iMat - Centre Tecnològic de la Construcció
>> lcases at imat.cat
>> www.imat.cat*
>> Wellington 23 · E-08018 Barcelona
>> T +34 93 553 97 95
>> F +34 93 553 97 96
>> Imprimiu aquest document només si és necessari
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>> TRNSYS-users at cae.wisc.edu
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>
>>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
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