[TRNSYS-users] greenhouse soil temperature

[Mario González]

Emre,

You can also use the type77 to model the ground temperature, and then use
it as an input in the type56 (greenhouse).

I think it would be faster than running the simulation using the type49.

Best,
Mario

El mar., 31 dic. 2019 a las 10:13, <
trnsys-users-request at lists.onebuilding.org> escribió:

> ---------- Forwarded message ----------
> From: Emre Arpaci <emrearpaci10 at gmail.com>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Tue, 31 Dec 2019 17:47:10 +0300
> Subject: [TRNSYS-users] greenhouse soil temperature
> I modeled a greenhouse with skeetchup and imported it to trnsys. I used a
> controller to set up the heating point  15 °C  .   i learned this last
> week the program takes the soil temperature 0  °C . Because the
> ground_floor boundary coundition is like that 1*TGROUND . and ı couldnot
> connect TGROUND temperature to my greenhouse. Because I dont know how can I
> get  this ground temperature in my greenhouse.  I read the old mails in
> this site. I get this point Type 49 should be used for determining ground
> temperature. I read TRNSYS_Multizone_Slab_Model_Tutorial article to use
> type 49 correctly but i couldnt run it.    Now is there any other method to
> calculate my greenhouse ground temperature dynamically ?
>
>
>
> ---------- Forwarded message ----------
> From: David BRADLEY <d.bradley at tess-inc.com>
> To: "TRNSYS users mailing list at OneBuilding.org" <
> trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Tue, 31 Dec 2019 10:05:36 -0600
> Subject: Re: [TRNSYS-users] greenhouse soil temperature
>
> Emre,
>
>   TGROUND is an input to Type56 so like all TRNSYS inputs, it will have
> the value of whatever model output or equation that you connect to it and
> if you don't connect anything then it will have whatever initial value you
> have set in the Type56 proforma. The default value for all of the Type56
> inputs is 0. You need to connect the appropriate boundary temperature for
> floor x output of Type49 to the TGROUND input in Type56. You also need to
> add a Type56 output of QCOMO for each floor surface and connect it to the
> appropriate Type49 input(s). I would recommend that you follow the
> SlabOnGrade.tpf example that shows how the two components are connected (if
> you have not already done so).
>
> kind regards and happy new year,
>
>  David
> On 12/31/2019 08:47, Emre Arpaci via TRNSYS-users wrote:
>
> I modeled a greenhouse with skeetchup and imported it to trnsys. I used a
> controller to set up the heating point  15 °C  .   i learned this last
> week the program takes the soil temperature 0  °C . Because the
> ground_floor boundary coundition is like that 1*TGROUND . and ı couldnot
> connect TGROUND temperature to my greenhouse. Because I dont know how can I
> get  this ground temperature in my greenhouse.  I read the old mails in
> this site. I get this point Type 49 should be used for determining ground
> temperature. I read TRNSYS_Multizone_Slab_Model_Tutorial article to use
> type 49 correctly but i couldnt run it.    Now is there any other method to
> calculate my greenhouse ground temperature dynamically ?
>
>
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