Re: [TRNSYS-users] Fwd: RADIATION

[David Bradley <bradley@tess-inc.com>]

Kiki,
 Normally, the radiation will always be a positive value or zero. In some rare cases of using measured data, data files can have very tiny negative values of radiation in them (due to callibrartion of the sensor). The equation is extraneous for almost all cases - I rarely include such an equation in my simulations - it is just a safety measure in case there is something wrong with the data.
Kind regards,
 David

Subject:

RADIATION

From:

kiki siouna <kiki_siouna@yahoo.com>

Date:

Thu, 29 Jan 2009 11:41:42 -0800 (PST)

To:

'trnsys-users@cae.wisc.edu'

To:

'trnsys-users@cae.wisc.edu'

HELLO TO EVERYONE.

I SIMULATE A BUILDING AND AT THE BEGINNING I PUT THE BUILDINGS DATA AND THE MAIN REQUIRED COMPONENTS APPEARED AND CONNECTED. ONE OF THEM IS A EQUATION NAMED ¢RADIATION¢ WHICH CHECKS IF SOME RADIATIONS ARE POSITIVE WITH THE EQUATION ¡¢RADIATION1=MAX (INPUT,O). 

WHAT DOES THIS MEAN? IS IT POSSIBLE THE RADIATIONS TO BE LOWER THAN ZERO??

 

THANK YOU IN ADVANCE

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