uwg.psychrometrics module¶
Functions for sychrometric calculations.
- uwg.psychrometrics.hum_from_rhum_temp(RH, T, P)[source]¶
Specific Humidity (kgh20/kgn202) from RH, T and Pa.
- Parameters:
RH – Number for Relative Humidity.
T – Number for dry bulb temperature (C).
P – Number for air pressure (P).
- Returns:
Specific Humidity (kgh20/kgn202).
- uwg.psychrometrics.moist_air_density(P, Tdb, H)[source]¶
Moist air density (kgv m-3) from dry bulb temp, HR, and pressure[1][2][3].
Note
[1] ASHRAE Fundamentals (2005) ch. 6 eqn. 28 [2] ASHRAE Fundamentals (2009) ch. 1 eqn. 28 [3] https://github.com/psychrometrics/Libraries/blob/master/Psychrometrics_SI.cpp
- Parameters:
P – Number for Pressure (P).
Tdb – Number for dry bulb temperature in (C).
H – Number for Humidity Ratio (kgv/kgda).
- Returns:
Moist air density (kgv m-3).
- uwg.psychrometrics.psychrometrics(Tdb_in, w_in, P)[source]¶
Modified version of Psychometrics by Tea Zakula MIT Building Technology Lab.
- Parameters:
Tdb_in – Number for dry bulb temperature (K).
w_in – Number for Humidity Ratio (kgv/kgda).
P – Atmospheric Station Pressure (P).
- Returns:
A tuple with six values
Tdb: Number for dry bulb temperature in (C).
w: Number for Humidity Ratio (kgv/kgda).
phi: Number for relative humidity (Pw/Pws*100).
h: Number for enthalpy (J/kga).
Tdp: Number for dew point temperature (C).
v: Number for specific volume (m3/kga).