[TRNSYS-users] Fwd: Equation editor

---------- Forwarded message ---------
From: adnan rasheed <adnan.upm.spain@gmail.com>
Date: Sat, Feb 16, 2019 at 1:01 PM
Subject: Re: [TRNSYS-users] Equation editor
To: Jeff Thornton <thornton@tess-inc.com>

Thanks Jeff,

The detail is like that...

Case 1

EQUATION Editor

Weather data --------------------------------- Solar radiation Win_id_1 = 0

Win_id_2 = 1
Win id = GT(Solar_R,100)*Win_ID_1+(LT(Solar_R,100))*Win_ID_2 ----------------------------------------------------------Type 56 input (for controlling Window)

Case 2

EQUATION Editor

Win_id_1

Weather data----------------------------------- Temp Win_id_2
Win id = GT(Temp,20)*Win_ID_1+(LT(Temp,20))*Win_ID_2

BOTH CASE 1 AND 2 WORKS FINE.

Case 3

now case three i want to control both temp and solar radiation combine and need to get one output for TYPE 56

Like when temp > 20 and solar radiation > 100 output should be 0.. and when temp < 20 and solar radiation < 100 out put should be 1

Hope this explanation will help.

Thank you very much for looking into my problem.

Regards

Adnan

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On Fri, Feb 15, 2019 at 11:50 PM Jeff Thornton <thornton@tess-inc.com> wrote:

Adnan,

You didn’t give us enough information to be able to write the equations. What happens when the radiation is high but the temperature is low? And the opposite condition? But we can set it up in a basic format for you to edit:

Equations 3
SolarHigh = GT(Solar_R,100)
TempHigh = GT(Temp,100)
Win_ID = SolarHigh*TempHigh*ID1+SolarHigh*(1-TempHigh)* ID2+(1-SolarHigh)*TempHigh*ID3+(1-SolarHigh)*(1-TempHigh)* ID4

Basically set up your equation to account for all 4 outcomes. Just fill in the correct ID in the equation above and you should be good.

Jeff - TESS

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On Feb 15, 2019, at 4:48 AM, adnan rasheed via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:

Hello everyone,

i am using simulation studio's equation editor, two equations with different parameters set values separately, and they work fine now i want to control two parameters together with two equation combine how i can do this

my equations are e.g

1) win_id_input = INT(GT(Solar_R,100)*Win_ID_1+(LT(Solar_R,100))*Win_ID_2

2) win_id_input = INT(GT(temp,100)*Win_ID_1+(LT(temp,100))*Win_ID_2

need one out put both conditions together,
Thanks in advance

Adnan Rasheed
PhD Researcher
Kyungpook National University
Daegu, South Korea.
+82-102762-0105
adnan.upm.spain@gmail.com, adnanrasheed@knu.ac.kr

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Adnan Rasheed

PhD Researcher

Kyungpook National University

Daegu, South Korea.

+82-102762-0105