Stainless steel tube is used to transport pharmaceutical liquids, it has an inner diameter of 40 mm and a wall thickness of 4 mm. The pharmaceutical and ambient air are at temperatures of 6 C and 23C, respectively, while the corresponding inner and outer convection coefficients are 400 W/m2 .K and 6 W/m2 K, respectively. (a) What is the heat gain per unit length? (b) What is the heat gain per unit length if a 10 mm thickness layer of calcium silicate insulation (kins = 0.050 W/m. K) is applied to the tube?
Stainless steel tube is used to transport pharmaceutical liquids, it has an inner diameter of 40 mm and a wall thickness of 4 mm. The pharmaceutical and ambient air are at temperatures of 6 C and 23C, respectively, while the corresponding inner and outer convection coefficients are 400 W/m2 .K and 6 W/m2 K, respectively. (a) What is the heat gain per unit length? (b) What is the heat gain per unit length if a 10 mm thickness layer of calcium silicate insulation (kins = 0.050 W/m. K) is applied to the tube?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Stainless steel tube is used to transport pharmaceutical liquids, it has an inner diameter of 40 mm
and a wall thickness of 4 mm. The pharmaceutical and ambient air are at temperatures of 6 C and
23C, respectively, while the corresponding inner and outer convection coefficients are 400 W/m2
.K and 6 W/m2 K, respectively.
(a) What is the heat gain per unit length?
(b) What is the heat gain per unit length if a 10 mm thickness layer of calcium silicate insulation
(kins = 0.050 W/m. K) is applied to the tube?
Transcribed Image Text:r₁=20mm
2=22mm
Toji=6°0
hi-400w/m²k
insulation
kin=0.05w/mk
Too,o=23°C
ho=6W/m²k
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