- #1

ken93

## Main Question or Discussion Point

Ques: I would like to calculate the time taken where the internal pipe's temperature would reach 150 degree Celsius too. A heat source will be constantly feeding on outside pipe where the temperature will be maintaining at 150 degree Celsius. Feel free to make any assumptions if there is parameters that i have missed out.

Assumptions:

Nominal pipe size = 5 inch

carbon steel thermal conductivity, k = 52 w/mk

Weight = 21.77 kg/m

Length = 0.5 m

Temperature outside pipe = 150 degree Celsius

Temperature inside pipe = 60 degree Celsius

Power source = 40 kw

Specific heat of carbon = 0.49 kj / (kgk)

Assumptions:

Nominal pipe size = 5 inch

carbon steel thermal conductivity, k = 52 w/mk

Weight = 21.77 kg/m

Length = 0.5 m

Temperature outside pipe = 150 degree Celsius

Temperature inside pipe = 60 degree Celsius

Power source = 40 kw

Specific heat of carbon = 0.49 kj / (kgk)