[TRNSYS-users] Power Coefficients for Dry Fluid Cooler Type 511

[metkell yebiyo]

Dear TRNSYS users,

I am simulating a GSHP system connected to a 300kW Dry air cooler Type 511.
The Dry air Cooler is controlled when the return temperature from the ground reaches 30degC, 
then the Dry air cooler comes on, to maintain the fluid temperature going to the ground to 22degC.

My question is, I am trying to obtain the amount of power drawn by the fan when the Dry air Cooler is operating. But in order for TRNSYS, to calculate the power drawn, you need to put the power coefficients a1, a2 and a3, how would I obtain this values? Is it a matter of calling the Dry air cooler manufacturer and ask them for this power coefficients or what do I need to do please?



Thank you
Metkel Yebiyo BEng (Hons), MSc
CEREB PhD Researcher - Ground Source Heat Pumps 
Room T615 
Department of Urban Engineering 
Faculty of Engineering, Science and the Built Environment
London South Bank University, 
103 Borough Road,
London SE1 0AA
Tel: +44 (0)20 7815 7639
E: yebiyom at lsbu.ac.uk
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