[TRNSYS-users] how to control HVAC ?

francesca lorusso via TRNSYS-users trnsys-users at lists.onebuilding.org
Wed Mar 22 11:08:33 PDT 2017


Dear David and Ahamd,
if i want to make a temperature control with active layer how i have to
manage heating and cooling in the trnbuilding file?

Beste regards,
francesca

2017-02-09 17:30 GMT+01:00 David BRADLEY via TRNSYS-users <
trnsys-users at lists.onebuilding.org>:

> Ahmad
>
>   I am not aware of such an example or tutorial. However, the principal is
> the same as for controlling temperature. Define a humidistat that watches
> the zone RH or humidity ratio then pass the humidistat's outputs to
> appropriate humidification/dehumidification equipment that acts on the
> air stream that is introduced into the zone.
>
> kind regards,
>
>  David
>
>
>
> On 02/09/2017 09:20, ahmad abbasian wrote:
>
> Dear David
>
>
> Thank you very much for the useful links. Now I know  how to control the
> temperature of a building. Is there any example of controlling the humidity
> also?
>
>
> Thank you
>
>
> ............................................................
> ..................................
> Ahmad abbasianzadeh
> Solar energy Researcher
> *Harrisburg, Pensylvania*
>
>
>
> ------------------------------
> *From:* David BRADLEY <d.bradley at tess-inc.com> <d.bradley at tess-inc.com>
> *Sent:* Tuesday, February 7, 2017 11:33:57 AM
> *To:* ahmad abbasian; TRNSYS users mailing list at OneBuilding.org;
> thornton at tess-inc.com
> *Subject:* Re: [TRNSYS-users] how to control HVAC ?
>
>
> Ahmad,
>
>  I would recommend that you download the tutorial called "Temperature
> Level Control from Energy Rate Control " at:
>
>
> http://sel.me.wisc.edu/trnsys/downloads/tutorials_and_examples/tutex17.htm
>
>
> or if you are using v16
>
>
> http://sel.me.wisc.edu/trnsys/downloads/tutorials_and_examples/tutex.htm
>
>
> It will explain some of the differences between calculating a building
> load and simulating the performance of HVAC systems. It will also lead you
> through an example of converting a load computation simulation into an HVAC
> system simulation.
>
> kind regards,
>
>  David
>
>
>
>
> On 02/07/2017 13:34, ahmad abbasian via TRNSYS-users wrote:
>
> Dear Jeff
>
> Thank you for your guiding. I have simulated my HVAC system at nominal
> condition, alone not using the building model. Now I'm going to use this
> system connected to a building. Now my question is how should I match the
> HVAC cooling production to the building load which is transient? should I
> control the temperature and humidity also or just the flow rate should be
> controlled to meet the load?
>
> I couldn't find a similar example in TRNSYS examples. Could you send me an
> example in case of having some please?
>
> Thank you
> ............................................................
> ..................................
> Ahmad abbasianzadeh
> Solar energy Researcher
> *Harrisburg, Pensylvania*
>
>
>
> ------------------------------
> *From:* TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org>
> <trnsys-users-bounces at lists.onebuilding.org> on behalf of Jeff Thornton
> via TRNSYS-users <trnsys-users at lists.onebuilding.org>
> <trnsys-users at lists.onebuilding.org>
> *Sent:* Tuesday, February 7, 2017 7:09:11 AM
> *To:* trnsys-users at lists.onebuilding.org
> *Subject:* Re: [TRNSYS-users] how to control HVAC ?
>
>
> Ahmad,
>
> There are literally hundreds of ways to control the temperature and
> humidity in a space.  I would suggest you do some reading to figure out a
> common HVAC system given your climate and type of building - then you can
> begin to replicate that system in TRNSYS.
>
>
>
> Jeff
>
>
>
> ---
> Jeff Thornton
> President - TESS LLC
> 22 N. Carroll Street, Madison WI USA 53703
> Office: (608) 274-2577  Fax: (608) 278-1475www.tess-inc.com
> E-Mail: thornton at tess-inc.com
>
> On 02/07/2017 12:08 pm, ahmad abbasian via TRNSYS-users wrote:
>
> Hello
>
> I'm simulating a solar assisted coolig system for a building. The building
> cooling load is transient. so how the HVAC system should be controlled to
> cover the building load? I guess that the supply air temperature and
> humidity ratio should be constant ( a value in the comfort region ) and the
> air flow rate should be controlled using a variable speed fan to cover the
> cooling load. Is it right? any better idea?
>
> Also I don't know how the control system should be? should I use a
> thermostat?
>
> If any one can send me an example it will be very useful for me to learn
>
> Thank you
>
>
> ............................................................
> ..................................
> Ahmad abbasianzadeh
> master of energy systems engineering
> Solar energy Researcher
> *Harrisburg, Pensylvania*
>
>
>
>
> _______________________________________________
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>
>
>
> _______________________________________________
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>
>
> --
> ***************************
> David BRADLEY
> Principal
> Thermal Energy Systems Specialists, LLC
> 22 North Carroll Street - suite 370
> Madison, WI  53703 USA
>
> P:+1.608.274.2577 <(608)%20274-2577>
> F:+1.608.278.1475 <(608)%20278-1475>d.bradley at tess-inc.com
> http://www.tess-inc.comhttp://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 <(608)%20274-2577>
> F:+1.608.278.1475 <(608)%20278-1475>d.bradley at tess-inc.com
> http://www.tess-inc.comhttp://www.trnsys.com
>
>
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>
>


-- 
*FRANCESCA LORUSSO*
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