Question

Problem #3: A 10 ft copper pipe is heated from 70°F to 600°F in a heat treatment oven. How much does it expand?

Answer #1

**Expansion of Copper tube =
L**

**(L)=
(Co-efficient of thermal expansion)*(Change in temperature)
*(Length of copper tube)**

**(L)
= (C)*(T)
*(L)**

**But we know that, for Copper, Co-efficient of thermal
expansion is
C = 9.4 x 10-6 in per in per degree F**

**T
= 600 - 70 = 530 degree F**

**L = 10 ft = 10 x 12 = 120
inches**

**(L)
= ( 9.4 x 10-6 ) x (530) x (120)**

**(L)
= 0.59784 inches.**

**Hence, expansion of copper
tube = 0.59784 inches.**

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