[TRNSYS-users] differential controller

[Mukhtar Abeid]

Dear Sherif

What I know about the differential controller is that it's used in case of
thermal storage exist. However, in your case there is no storage. So, l
don't think that it is a good idea to use the differential. There are some
other good choices.

Good luck







في الجمعة، ٩ يوليو ٢٠٢١ ٠٢:٤٤ SHERIF SAIED via TRNSYS-users <
trnsys-users at lists.onebuilding.org> كتب:

> checked Thanks, I have another question I used a differential
> controller to the boiler type 700 and need temperature out of it in the
> range between 80-90 in summer(cooling season) to supply absorption chiller
> and need temperature in winter(heating season) in the range of 30-45. I
> linked the upper input Temp.(Th) to outlet of the boiler, linked the lower
> input Temp.(TL) to the return flow from the tank to the boiler. for
> monitoring Temp. (Tin),upper dead band(dt) and lower dead band(dt) I don't
> really know how to link or what value should be. could anyone help,
> please?, Thanks in advance.
>
> On Tue, Jul 6, 2021 at 8:32 PM David BRADLEY <d.bradley at tess-inc.com>
> wrote:
>
>> Sherif,
>>
>>   There are a number of examples in the
>> .\Trnsys18\Examples\HVACTemplates\ folder that will give you some ideas
>> about how to implement control of HVAC systems. Have a look at the
>> 10-Examples.pdf documentation in parallel with those examples. I don't
>> think that any of them have a radiant floor in them but the principals are
>> the same.
>>
>> You might also have a look at the example:
>>
>> .\Trnsys18\Examples\Feedback Control\SunSpace - Floor heating PID
>> controller.tpf
>>
>> Its controls are possibly more complicated than the ones in your case but
>> it will show how to do the system-level connections between Type56's active
>> layers and the HVAC system.
>>
>> kind regards,
>>
>>  David
>>
>>
>>
>> On 07/06/2021 10:20, SHERIF SAIED via TRNSYS-users wrote:
>>
>> Hello everyone,
>>
>> I need help in some controls on radiant cooling and heating system model
>> like type 165 to control either boiler for heating system or control
>> building temperatures, also need to control on different components for the
>> cooling system to work uniformly according to season if summer cooling
>> system work and if winter will work the heating system and so on . I have
>> problems in PPD and PMV for building through all year. if anyone would help
>> or have an example model for how I can set these controllers in two systems?
>> Regards,
>> --
>> *Sherif Saied.*
>> *Tel: (*+2)01004419468 / (+2)01124348957
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing listTRNSYS-users at lists.onebuilding.orghttp://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>
>> --
>> ***************************
>> David BRADLEY
>> Principal
>> Thermal Energy Systems Specialists, LLC
>> 3 North Pinckney Street - suite 202
>> Madison, WI  53703 USA
>>
>> P:+1.608.274.2577d.bradley at tess-inc.com
>> http://www.tess-inc.comhttp://www.trnsys.com
>>
>>
>
> --
> *Sherif Saied.*
> *Tel: (*+2)01004419468 / (+2)01124348957
>
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