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Re: [TRNSYS-users] how to account number of hours which temperature is out of range?



you can use an equation that compares the greenhouse temperature to a scheduled value (set by a Type14) and sets a value of 1 if the greenhouse temperature goes out of bounds.

alternatively there is a Type584 in the TESS Utility library (Zone temperature watcher) that is designed to do just what you need.

best,

 David



On 04/12/2017 07:15, Amirreza Heidary via TRNSYS-users wrote:
Dear All
I have designed a cooling system for a greenhouse. The temperature should be between 22 and 28 C during the day and  15 to 21 C during the night. I'm going to account number of hours during a month, which the greenhouse temperature is out of the range. As the standard range of temperature is different during the day and night, how can I calculate it?
Thank you 

--------------------------------------------------------------------------------------------------------------------------------------------------

amirrezaheidary
master student of energy systems Engineering
Sharif university of technology
Tehran-Iran
E-mail address:

heidari@energy.sharif.edu

amirrezaheidarysbu@gmail.com

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