[TRNSYS-users] How to control absorption chiller (Type 107)

[Mario Humberto González]

Dear Sinchote,

The second condition can be controlled with the type 14h (Utility>Forcing
Functions>General).



And define the schedule in the function editor like this



After that, in an equation, you can use a "greater than" to check if the
tank temperature is above 75 °C. And finally an "and" to compare both
conditions.

Best,
Mario



From: Sinchote Keeratianant <cole_sin at hotmail.com>
> To: Angel Carrera <angel.carrera at aiguasol.coop>, "TRNSYS users mailing
> list at OneBuilding.org" <trnsys-users at lists.onebuilding.org>
> Cc:
> Bcc:
> Date: Wed, 15 Aug 2018 08:22:27 +0000
> Subject: Re: [TRNSYS-users] How to control absorption chiller (Type 107)
>
> Dear Angel,
>
> Do you mean combine 2 conditions into equation block and then use these
> result to control absorption chiller (type 107) right?
>
> If yes. Could you tell me how can i combine both into equation block?
>
> I'm looking forward to hearing from your answer.
>
> Thanks.
>
> Best regards,
> Sinchote
>
>
>
> ------------------------------
> *From:* Angel Carrera <angel.carrera at aiguasol.coop>
> *Sent:* 14 August 2018 7:52 PM
> *To:* TRNSYS users mailing list at OneBuilding.org
> *Subject:* Re: [TRNSYS-users] How to control absorption chiller (Type 107)
>
> Dear Sinchote,
>
> You can implement that control by multiplying both of your conditions in
> an equation block, and use the result as your control signal. The first of
> your conditions will work better if you implement it in a type 2 and the
> second can came from some forcing function, hope it helps
>
> Angel
>
> El mar., 14 ago. 2018 10:47, Sinchote Keeratianant via TRNSYS-users <
> trnsys-users at lists.onebuilding.org> escribió:
>
> Dear Trnsys users,
>
>       I'm studying in master degree and conducting the simulation solar
> cooling system. I have a problem about how to control the absorption
> chiller model(type 107) working.
>
> I would like to control 2 modes for absorption chiller working :
> 1. Absorption chiller working when temperature in hot water tank reach to
> 75 degree celsius and
> 2. Absorption chiller working on 9.00 a.m. - 22.00 p.m.
>
> The absorption chiller wiil work when both of conditions happen.
>
> Has anyone experienced this problem and knows how to fix it?
>
>
> Best regards,
>
>
> Sinchote
>
>
>
> _______________________________________________
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> TRNSYS-users at lists.onebuilding.org
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>
>
>
-- 
*Mario González*
Estudiante de Maestría en Ciencia y Tecnología Ambiental
Centro de Investigación en Materiales Avanzados, S.C.

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