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@hotmail.com>
To: Angel Carrera <angel.carrera@aiguasol.coop>, "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@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@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@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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--
Mario González
Estudiante de Maestría en Ciencia y Tecnología Ambiental
Centro de Investigación en Materiales Avanzados, S.C.