Steam at T1 = 320°C and h1 = 60 W/m2·°C flows in a cast iron pipe (k = 80 W/m·°C). The inner and outer diameters are D1 = 5 cm and D2 = 5.5 cm, respectively. The insulation thickness is 3-cm-glass wool insulation with k= 0.05 W/m · °C. The temp. of the surroundings at T2 = 5°C and heat transfer coefficient of h2=18 W/m2·°C. Determine 1. Heat loss from the steam per unit length of the pipe. 2. Determine the temperature at the surfaces of the pipe and the insulation.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Steam at T1 = 320°C and h1 = 60 W/m2·°C flows in a cast iron pipe (k = 80 W/m·°C). The inner and outer diameters are D1 = 5 cm and D2 = 5.5 cm, respectively. The insulation thickness is 3-cm-glass wool insulation with k= 0.05 W/m · °C. The temp. of the surroundings at T2 = 5°C and heat transfer coefficient of h2=18 W/m2·°C. Determine 1. Heat loss from the steam per unit length of the pipe. 2. Determine the temperature at the surfaces of the pipe and the insulation.
www T
Room2
Tel
www
R13
Rom
Re12
The inner and outer diameters are D1=5 cm and D2= 5.5 cm
respectively.
Determine
1. Heat loss from the steam per unit length of the pipe.
h2
To
Insulation
Steam
72
Te
T3
Transcribed Image Text:www T Room2 Tel www R13 Rom Re12 The inner and outer diameters are D1=5 cm and D2= 5.5 cm respectively. Determine 1. Heat loss from the steam per unit length of the pipe. h2 To Insulation Steam 72 Te T3
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