pvlib.temperature.sapm_module¶
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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.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