mirror of
https://github.com/CoolProp/CoolProp.git
synced 2026-01-24 05:18:04 -05:00
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
|
|
import numpy as np
|
|
import matplotlib.pyplot as plt
|
|
from CoolProp.HumidAirProp import HAProps
|
|
|
|
Tdb = np.linspace(-10,55,100)+273.15
|
|
|
|
#Make the figure and the axes
|
|
fig=plt.figure(figsize=(10,8))
|
|
ax=fig.add_axes((0.15,0.15,0.8,0.8))
|
|
ax.set_xlim(Tdb[0]-273.15,Tdb[-1]-273.15)
|
|
ax.set_ylim(0,0.03)
|
|
ax.set_xlabel(r"Dry bulb temperature [$^{\circ}$C]")
|
|
ax.set_ylabel(r"Humidity ratio ($m_{water}/m_{dry\ air}$) [-]")
|
|
|
|
# Saturation line
|
|
w = [HAProps('W','T',T,'P',101.325,'R',1.0) for T in Tdb]
|
|
ax.plot(Tdb-273.15,w,lw=2)
|
|
|
|
# Humidity lines
|
|
RHValues = [0.05, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9]
|
|
for RH in RHValues:
|
|
w = [HAProps('W','T',T,'P',101.325,'R',RH) for T in Tdb]
|
|
ax.plot(Tdb-273.15,w,'r',lw=1)
|
|
|
|
# Humidity lines
|
|
for H in [-20, -10, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90]:
|
|
#Line goes from saturation to zero humidity ratio for this enthalpy
|
|
T1 = HAProps('T','H',H,'P',101.325,'R',1.0)-273.15
|
|
T0 = HAProps('T','H',H,'P',101.325,'R',0.0)-273.15
|
|
w1 = HAProps('W','H',H,'P',101.325,'R',1.0)
|
|
w0 = HAProps('W','H',H,'P',101.325,'R',0.0)
|
|
ax.plot(np.r_[T1,T0],np.r_[w1,w0],'r',lw=1)
|
|
|
|
plt.show()
|