API field
Module unit mass
Mass per square metre for the thermal inertia; empty = from the module weight
Unit kg/m²
What it is
The module mass per square metre used by the thermal inertia model. Empty derives it from the module weight and area, or uses 11 kg/m² when no weight is known. This value replaces the module weight when both are given. A value of 20 kg/m² or more is treated as an input error and replaced by 11 kg/m².
Typical values and how to get it
About 8 to 14 kg/m² for current modules. Leave it empty to derive it from the module weight.
References
- Prilliman, Stein, Riley & Tamizhmani 2020, Transient weighted moving-average model of photovoltaic module back-surface temperature, IEEE Journal of Photovoltaics 10(4) 1053–1060
API
thermal.module_mass_kg_m2