Area Thermal Expansion

Area thermal expansion, abbreviated as \( \Delta A\), also known as aerial thermal expansion, happens when any change in temperature expands the area.

 

Area Thermal Expansion Formulas

\(\large{ \Delta A  =   A_f  -  A_i  }\)

\(\large{ \Delta A  =  2 \; \overrightarrow{\alpha_l} \; A_i \; \Delta T }\)

Where:

Units	English	Metric
\(\large{ \Delta A }\) = area thermal expansion	\(\large{in^2}\)	\(\large{mm^2}\)
\(\large{ A_f }\) = final area of object	\(\large{in^2}\)	\(\large{mm^2}\)
\(\large{ A_i }\) = initial area of object	\(\large{in^2}\)	\(\large{mm^2}\)
\(\large{ \overrightarrow{\alpha_l} }\)   (Greek symbol alpha) = linear thermal expansion coefficient	\(\large{ \frac{in}{in\;F} }\)	\(\large{ \frac{mm}{mm\;C} }\)
\(\large{ \Delta T }\) = temperature differential	\(\large{F}\)	\(\large{C}\)