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Re: [TRNSYS-users] floor heating temperature set-point value



Wang,
 There are a number of possible explanations: the gains in your space could be assisting the space to warm up faster but then could act to maintain the building at its higher temperature (causing it to cool down more slowly). alternatively, perhaps your system is set up so that it runs a pump with warm water through the floors to heat up the space actively but then only shuts the pump off when it wants the space to cool back down (ie active heating but passive cooling) then that could cause the different time constant that you are seeing.
Regards,
 David


On 12/5/2010 08:39, 王洋 wrote:
Dear all,
 
  I designed a floor heating ( heating is only floor heating ) temperature PID control system. The set-point value is 19 C when  unoccupied, 21C when occupied. But there is a problem: it needs about 2 hours from 19C to 21C, BUT it needs about 7 hours from 21C to 19C. Attached is the figure.
 
 Please tell me why it can result in this situation? and how to deal with it?
 
Many thanks!
 
br.
 
wang
 


 
2010/12/3 <trnsys-users-request@cae.wisc.edu>
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Today's Topics:

  1. not linked into trndll.dll (Bashar Termanini)
  2. Re: not linked into trndll.dll (Matt Duffy)
  3. Re: not linked into trndll.dll (David BRADLEY)
  4. Re: HELP TRNSYS 16 (David BRADLEY)


---------- 已转发邮件 ----------
From: "Bashar Termanini" <bashartermanini@gmail.com>
To: <trnsys-users@cae.wisc.edu>
Date: Fri, 3 Dec 2010 16:19:27 +0200
Subject: [TRNSYS-users] not linked into trndll.dll
Hi,

When I try to use my new component I get this error
"A TYPE was called in the TRNSYS input file but was either not linked into
trndll.dll or was not found in an external dll. A dummy subroutine was
called in its place. Please link the TYPE or remove it from the input file"
Any help?

Thanks




---------- 已转发邮件 ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: "Bashar Termanini" <bashartermanini@gmail.com>, trnsys-users@cae.wisc.edu
Date: Fri, 3 Dec 2010 08:30:41 -0600 (CST)
Subject: Re: [TRNSYS-users] not linked into trndll.dll
Please make sure that the DLL that you compiled for your new component is
placed in the appropriate directory (.\Userlib\ReleaseDLLs).

Best regards,

Matt Duffy



----- Original Message -----
From: "Bashar Termanini" <bashartermanini@gmail.com>
Sent: Fri, December 3, 2010 8:19
Subject:[TRNSYS-users] not linked into trndll.dll

Hi,

When I try to use my new component I get this error
"A TYPE was called in the TRNSYS input file but was either not linked into
trndll.dll or was not found in an external dll. A dummy subroutine was
called in its place. Please link the TYPE or remove it from the input file"
Any help?

Thanks

_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users

----- End of original message -----




---------- 已转发邮件 ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: Bashar Termanini <bashartermanini@gmail.com>
Date: Fri, 03 Dec 2010 09:47:17 -0600
Subject: Re: [TRNSYS-users] not linked into trndll.dll
Bashar,
Also please make sure that you have the following line in your source code:

!DEC$ATTRIBUTES DLLEXPORT :: TYPExxx

where "xxx" is replaced by your Type number. If you are writing Type201, the line would be

!DEC$ATTRIBUTES DLLEXPORT :: TYPE201

Best,
David



On 12/3/2010 08:19, Bashar Termanini wrote:
Hi,

When I try to use my new component I get this error
"A TYPE was called in the TRNSYS input file but was either not linked into
trndll.dll or was not found in an external dll. A dummy subroutine was
called in its place. Please link the TYPE or remove it from the input file"
Any help?

Thanks

_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://www-old.cae.wisc.edu/mailman/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@tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com




---------- 已转发邮件 ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: david.irusta@idom.com
Date: Fri, 03 Dec 2010 10:36:58 -0600
Subject: Re: [TRNSYS-users] HELP TRNSYS 16
David

-How do you Know if the horizontal wall is floor o ceiling?
The TRNSYS 16 building model was non-geometric; when you define a horizontal surface, the only thing that indicates whether it is a floor or a ceiling is the condition that you impose on the opposite side of the surface.
-Creating a Multizone Building,
        when you have to decide the outputs,how can you select a surface(to choose for example TOFL) instead of a Thermal zone?
there are a number of radio buttons across the middle of the window. You still select a zone but then you switch to "surface outputs" and you will see the available NTYPEs for the surfaces in that zone.
        how can you do a multistorey building??
The ceiling of one zone is set as wall type "ADJACENT" and you indicate the name of the zone above whose floor is the same as that ceiling.
I´m interested in create a model about TABS (thermal active building system) which includes active layers
-where can I find examples or tutorials with TRNSYS 16?
I believe that some of the feedback controller examples (..trnsys16\Examples\...) show how to use the active layers.

Best,
 David

-- 
***************************
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@tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users


_______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://www-old.cae.wisc.edu/mailman/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@tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com