functions.hydrotidalpower: Tidal Power Functions

In renpow: Renewable Power Systems and the Environment

Description

Calculations in tidal power generation

Usage

read.tide(file)
harmonics.tide(x, days, ylabel, plot)
power.barrage.cycle(xba)
find.peaks(tz, band)
tide.current.abs(tz, ylabel, plot)
tidal.power(tz, Aflow)

Arguments

file	filename for tide files in extdata
x	a tidal dataset read from file
days	number of days
ylabel	label for y axis of plot default for harmonics.tide is "Tide wrt MSL (m)" default for tide.current.abs is "Current abs (m/s)"
plot	logical to decide to plot default is TRUE
xba	list(a,Abasin,z,nu): a center of mass at half the tidal range, Abasin tidal basin area, z tidal cycle range, nu efficiency
tz	time and tide height in tidal signal produced by harmonics.tide or rectified by tide.current.abs
band	threshold band to find peaks
Aflow	cross section area for tidal power generation

Details

Basic calculations for tidal power

Value

X	list(t,z,x) tide time series
X	list(xp,tp,range)
X	list(pow.tide.MW,pow.gen.MW,gen.MWh)

Note

Functions used in Chapter 12 of Acevedo (2018)

Author(s)

Miguel F. Acevedo [e-mail]

References

Acevedo, M.F. 2018. Introduction to Renewable Electric Power Systems and the Environment with R. Boca Raton, FL: CRC Press. (ISBN 9781138197343)

Examples

# using extdata
x <- read.tide(system.file("extdata","AnchorageTide.csv",package = "renpow"))
harmonics.tide(x,days=29)

x <- read.tide(system.file("extdata","VelocityTide.csv",package="renpow"))
y <- harmonics.tide(x, days=15,ylabel="Velocity m/s)")
tide.current.abs(y, ylabel="Velocity (abs val) (m/s)", plot=TRUE)
y <- harmonics.tide(x, days=365,ylabel="Velocity m/s)",plot=FALSE)
z <- tide.current.abs(y, ylabel="Current abs (m/s)", plot=TRUE)
tidal.power(z,Aflow=1)

x <- read.tide(system.file("extdata","ElevationTide.csv",package="renpow"))
y <- harmonics.tide(x,days=29)
y <- harmonics.tide(x,days=365)
z <- find.peaks(y, band=c(0,1))

renpow documentation built on May 1, 2019, 6:49 p.m.