[TRNSYS-users] differential controller

[Mukhtar Abeid]

Have you tried type 108

في الجمعة، ٩ يوليو ٢٠٢١ ١٩:٤٤ SHERIF SAIED via TRNSYS-users <
trnsys-users at lists.onebuilding.org> كتب:

> Hello Mukhtar,
> I have a thermal storage tank after boiler as a heating tank and another
> one after absorption chiller as a cooling tank so I think to control the
> boiler on/off and works in ranges I mentioned in summer and winter I need
> to use this differential one .as for the room I will consider what David
> said about the simple thermostat and will use it , but still the problem
> for me about the boiler. thanks for advance for helping me.
>
> Regards,
> Sherif
>
>
>
> On Fri, Jul 9, 2021 at 6:54 PM Mukhtar Abeid via TRNSYS-users <
> trnsys-users at lists.onebuilding.org> wrote:
>
>> 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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>>>
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>
>
> --
> *Sherif Saied.*
> *Tel: (*+2)01004419468 / (+2)01124348957
>
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