pvlib.temperature.sapm_module¶
-
pvlib.temperature.
sapm_module
(poa_global, temp_air, wind_speed, a, b)[source]¶ Calculate module back surface temperature per the Sandia Array Performance Model.
See 1 for details on the Sandia Array Performance Model.
- Parameters
- Returns
numeric, values in degrees C.
Notes
The model for module temperature \(T_{m}\) is given by Eq. 11 in 1.
(1)¶\[T_{m} = E \times \exp (a + b \times WS) + T_{a}\]Inputs to the model are plane-of-array irradiance \(E\) (W/m2) and ambient air temperature \(T_{a}\) (C). Model outputs are surface temperature at the back of the module \(T_{m}\) and cell temperature \(T_{C}\). Model parameters depend both on the module construction and its mounting. Parameter sets are provided in 1 for representative modules and mounting, and are coded for convenience in
TEMPERATURE_MODEL_PARAMETERS
.Module
Mounting
a
b
\(\Delta T [C]\)
glass/glass
open rack
-3.47
-0.0594
3
glass/glass
close roof
-2.98
-0.0471
1
glass/polymer
open rack
-3.56
-0.075
3
glass/polymer
insulated back
-2.81
-0.0455
0
References
- 1(1,2,3)
King, D. et al, 2004, “Sandia Photovoltaic Array Performance Model”, SAND Report 3535, Sandia National Laboratories, Albuquerque, NM.
See also