Re: [TRNSYS-users] Floor heating

[David BRADLEY <d.bradley@tess-inc.com>]

Dear CK Lee
Please be aware that we are technically no longer supporting Trnsys16.
The most recent version (Trnsys 17) was released in 2009 and the most
recent build (17.01.0025) was release this past september.

Trnsys16's Type56 model was a non-geometric model so that surfaces are
not aware of their placement relative to one another. The model used the
"star network" method in that all of the surfaces transfer energy to the
air node and the air node transfers energy to the surfaces. That said,
the user is able to select from two methods for entering the convective
heat transfer coefficients for surfaces (which of course are quite
important in radiant systems). The user can specify a constant value or
can choose from built in correlations for a floor, a vertical surface or
a ceiling. In this manner, the model is able to differentiate between
surfaces of differing orientation.

Kind regards,
David


On 11/22/2012 00:53, a8304506@graduate.hku.hk wrote:
> Hello, David.
>
> I am using Trnsys16.  I wonder if Type56 can differentiate between a floor
> heating system and a ceiling heating system if I add an active layer to a
> horizontal wall.  If so, how can I do so?  Please advise.
>
> Best Regards
> C. K. Lee
> University of Hong Kong 
>
> Quoting David BRADLEY <d.bradley@tess-inc.com>:
>
>> Malik,
>>    The Type56 building model has a radiant floor (or ceiling or wall) 
>> model built into it. They are called "active layers"
>> Best,
>>   David
>>
>>
>>
>> On 11/19/2012 03:49, Malik Wojciech wrote:
>>> Dear All,
>>>
>>> I am trying to simulate heat pump which is connected to the domestic 
>>> hot water tank and floor heating. How can I simulate floor heating 
>>> without having a TESS Libraries? Did anyone encounter such issue?
>>>
>>> I will appreciate any kind of help.
>>>
>>> Sincerely
>>>
>>> Wojciech Malik
>>>
>>>
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users@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@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:+1.608.278.1475
d.bradley@tess-inc.com

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