psychrometric_chart: Psychrometric chart

In chrras/climateeng: Tools to Calculate Climatic Comfort Related Parameters

Description

Plot psychrometric chart with or with data.

Usage

psychrometric_chart(temp.db = NULL, hum.ratio = NULL, temp.min = -15,
  temp.max = 30, humidity.max = 0.02, alt = 0, mollier = FALSE,
  alpha = 0.25, disable.warnings = TRUE)

Arguments

temp.db	Vector of dry-bulb temperatures [degC]. Defaults to NULL.
hum.ratio	Vector of humidity ratios [kg/kg]. Defaults to NULL.
temp.min	Minimum value of temperature axis [degC]. Defaluts to -15 degC.
temp.max	Maximum value of temperature axis [degC]. Defaluts to 30 degC.
humidity.max	Maximum value of humidity axis [kg/kg]. Defaults to 0.020 kg/kg.
alt	Vector of altitudes [m]. Defaults to 0 m (sea level).
mollier	Boolean operator. Plot Mollier chart (tx-chart) or tx-chart. Defaults to FALSE.
alpha	Transparancy of the data points. Defaults to 0.25.
disable.warnings	Some ignorable warnings appear when plotting the chart. To see these and eventually others disable.warnings should be FALSE. Defaults to TRUE.

Value

Plots the psychrometric chart. If the error "TEXT_SHOW_BACKTRACE environmental variable. Error in grid.Call(L_textBounds, as.graphicsAnnot(x$label), x$x, x$y, : polygon edge not found" shows up. Try run psychrometric_chart() again.

Author(s)

Christoffer Rasmussen

Examples

psychrometric_chart()

temp.db <- c(20, 23, 18, 20, 10, 27)
hum.ratio <- c(0.005, 0.009, 0.004, 0.011, 0.004, 0.01)
psychrometric_chart(temp.db, hum.ratio, alpha = 1)

psychrometric_chart(temp.db, hum.ratio, temp.min=5, mollier = TRUE,
 alpha = 1)

chrras/climateeng documentation built on May 13, 2019, 7:28 p.m.