[TRNSYS-users] How I should control this evaporative cooler to set nominal cooling capacity?

[Amirreza Heidary via TRNSYS-users <trnsys-users@lists.onebuilding.org>]

I have simulated a direct evaporative cooler using EES code and type66. my EES code determines cooling capacity by this equation: Q=M*Cp*(Tinletair-Toutletair). I like to have a constant cooling capacity, so I should set the air mass flow rate to achieve that. as the temperature difference changes during the time, I should use a variable speed fan and I should control the air mass flow rate such I achieve desired cooling capacity. (M=Q/ (Cp*(Tinletair-Toutletair) ). I do not know about controllers working principles, so would you be so king to explain me how I should apply appropriate control strategy to achieve this nominal cooling capacity?

Thank you

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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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