A tube of 50 mm diameter is heated electrically and receives a constant heat flux of 800 W/m. Water flows through the tube entering it at 25°C and the Reynolds number is 1600. Determine (a) the average heat transfer coefficient between the water and the tube wall, assuming fully developed conditions, (b) the length of the tube required for the bulk temperature of water to rise from 25°C to 50°C. For water at 25°C, take μ = 915 x 10 kg/m.s, k = 610 x 10-³. 800 W
A tube of 50 mm diameter is heated electrically and receives a constant heat flux of 800 W/m. Water flows through the tube entering it at 25°C and the Reynolds number is 1600. Determine (a) the average heat transfer coefficient between the water and the tube wall, assuming fully developed conditions, (b) the length of the tube required for the bulk temperature of water to rise from 25°C to 50°C. For water at 25°C, take μ = 915 x 10 kg/m.s, k = 610 x 10-³. 800 W
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![A tube of 50 mm diameter is heated electrically and receives a constant heat flux of 800 W/m.
Water flows through the tube entering it at 25°C and the Reynolds number is 1600. Determine (a) the average
heat transfer coefficient between the water and the tube wall, assuming fully developed conditions, (b) the length
of the tube required for the bulk temperature of water to rise from 25°C to 50°C. For water at 25°C, take μ =
915 x 106 kg/m.s, k = 610 x 10-³.
9.00 W](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faa7acbed-4c35-4c1c-ac61-7882d9e4cc10%2Fa98fd77c-5978-4021-a13b-9b767c2e8c66%2Fcwdqk2r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A tube of 50 mm diameter is heated electrically and receives a constant heat flux of 800 W/m.
Water flows through the tube entering it at 25°C and the Reynolds number is 1600. Determine (a) the average
heat transfer coefficient between the water and the tube wall, assuming fully developed conditions, (b) the length
of the tube required for the bulk temperature of water to rise from 25°C to 50°C. For water at 25°C, take μ =
915 x 106 kg/m.s, k = 610 x 10-³.
9.00 W
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