Re: [TRNSYS-users] power coefficient of type 110

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

Claire,
  yes, the power coefficients are the coefficients of the polynomial that relates power to control signal. Typically, the values you would use are a0=a1=0 and a2=1.
Kind regards,
 David

claire kazgandjian wrote:

Hi trnsys users,

I would like to introduce a polynominal equation which link power and control signal of variable speed pump type 110, as shown in trnsys help :
P = Prated * (a0 + a1*Ctrl + a2*ctrl²) with a0, a1, a2 polynominal coefficients.

Does parameter 6 "power coefficient" correspond to "polynominal coefficient" ? (Indeed power coefficient unit is kJ/h and polynominal coefficient has no unit).

If it's not the case, do you know what is  "power coefficient"?

Thank you!

Claire

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