corrFdKt: Correlations between the fraction of diffuse irradiation and...

Description Usage Arguments Value Author(s) References See Also Examples

Description

A set of correlations between the fraction of diffuse irradiation and the clearness index used by fCompD and fCompI.

Usage

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## Monthly means of daily values
FdKtPage(Ktd)
FdKtLJ(Ktd)

## Daily values
FdKtCPR(Ktd)
FdKtEKDd(Ktd, sol)
FdKtCLIMEDd(Ktd)

## Intradaily values
FdKtEKDh(kt)
FdKtCLIMEDh(kt)
FdKtBRL(kt, sol)

Arguments

Ktd

A numeric, the daily clearness index.

kt

A numeric, the intradaily clearness index.

sol

A Sol object provided by calcSol or a zoo object provided by fSolD or fSolI.

Value

A numeric, the diffuse fraction.

Author(s)

Oscar Perpiñán Lamigueiro; The BRL model was suggested by Kevin Ummel.

References

See Also

fCompD, fCompI

Examples

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Ktd = seq(0, 1, .01)
Monthly = data.frame(Ktd = Ktd)
Monthly$Page = FdKtPage(Ktd)
Monthly$LJ = FdKtLJ(Ktd)

xyplot(Page+LJ~Ktd, data = Monthly,
       type = c('l', 'g'), auto.key = list(space = 'right'))

Ktd = seq(0, 1, .01)
Daily = data.frame(Ktd = Ktd)
Daily$CPR = FdKtCPR(Ktd)
Daily$CLIMEDd = FdKtCLIMEDd(Ktd)

xyplot(CPR + CLIMEDd ~ Ktd, data = Daily,
       type = c('l', 'g'), auto.key = list(space = 'right'))

solaR documentation built on Jan. 19, 2020, 5:06 p.m.