[TRNSYS-users] differential controller

Sun Jul 11 00:09:51 PDT 2021

Thanks, I will check them.

On Sun, Jul 11, 2021 at 1:14 AM Mukhtar Abeid via TRNSYS-users <
trnsys-users at lists.onebuilding.org> wrote:

> Well, in this case, I think it is better for you to go through the HVAC
> example in the photo below you will find it the examples folder.
>
> I hope that could help
>
> في السبت، ١٠ يوليو ٢٠٢١ ١٤:٣٤ SHERIF SAIED via TRNSYS-users <
> trnsys-users at lists.onebuilding.org> كتب:
>
>> 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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-- 
*Sherif Saied.*
*Tel: (*+2)01004419468 / (+2)01124348957
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