Steam at 320°C flows in a stainless steel pipe, whose inne and outer diameters are D; = 5 cm and D.-5.5 cm. The pip is insulated with insulating material – glass fibe (organic bonded) at a thickness of 3 cm. Heat is lost to surroundin at 5°C via convection and radiation with a combined heat transfer coefficient of h, = 18 W/m²K. If the heat transfer coefficient inside the pipe is h, = 60 W/m²K, determine: %3D a) the heat loss from the steam per unit length of pipe b) temperature drop across the pipe thickness

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Steam at 320°C flows in a stainless steel pipe, whose inner
and outer diameters are D; = 5 cm and D.- 5.5 cm. The pipe
is insulated with insulating material – glass fibe (organic
bonded) at a thickness of 3 cm. Heat is lost to surroundings
at 5°C via convection and radiation with a combined heat
transfer coefficient of h, = 18 W/m²K. If the heat transfer
coefficient inside the pipe is h, = 60 W/m²K, determine:
a) the heat loss from the steam per unit length of pipe
b) temperature drop across the pipe thickness
Transcribed Image Text:Steam at 320°C flows in a stainless steel pipe, whose inner and outer diameters are D; = 5 cm and D.- 5.5 cm. The pipe is insulated with insulating material – glass fibe (organic bonded) at a thickness of 3 cm. Heat is lost to surroundings at 5°C via convection and radiation with a combined heat transfer coefficient of h, = 18 W/m²K. If the heat transfer coefficient inside the pipe is h, = 60 W/m²K, determine: a) the heat loss from the steam per unit length of pipe b) temperature drop across the pipe thickness
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