[TRNSYS-users] differential controller

[SHERIF SAIED]

No, I have not tried yet, but from reading this type I need 3 stages for
heating source and two for cooling. In my case I only have one output
source for heating from boiler to tank and have one also output lower
temperature from tank returned to the boiler (closed-loop) and I need to
control on/off the boiler for working only in ranges 80-90 oC in summer and
35-45 in winter, So it doesn't make sense for me to use this type or how
can I use it for this requirement?
Regards,
Sherif

On Sat, Jul 10, 2021 at 5:54 AM Mukhtar Abeid via TRNSYS-users <
trnsys-users at lists.onebuilding.org> wrote:

> 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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-- 
*Sherif Saied.*
*Tel: (*+2)01004419468 / (+2)01124348957
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