Area Thermal Expansion

Written by Jerry Ratzlaff on . Posted in Thermodynamics

expansion area 1AArea 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

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


 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 \(\large{F}\) \(\large{C}\)


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Tags: Thermal Equations Expansion Equations