6-34 Liquid ammonia at 10°C and 1 atm flows across a horizontalcylinder at a velocity of 5 m/s. The cylinder has a diameter of 2.5 cmand length of 125 cm and is maintained at a temperature of 30°C.Calculate the heat lost by the cylinder.6-65 Water flows over a 3-mm-diameter sphere at 5 m/s. The free-stream temperature is 38°C, and the sphere is maintained at 93°C.Calculate the heat-transfer rate.6-95 A tube bank consists of a square array of 144 tubes arranged in anin-line position. The tubes have a diameter of 1.5 cm and length of 1.0m; the center-to-center tube spacing is 2.0 cm. If the surface temperatureof the tubes is maintained at 350 K and air enters the tube bank at 1 atm,300 K, and u∞ = 6 m/s, calculate the total heat lost by the tubes.

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6-34 Liquid ammonia at 10°C and 1 atm flows across a horizontal cylinder at a velocity of 5 m/s. The cylinder has a diameter of 2.5 cm and length of 125 cm and is maintained at a temperature of 30°C. Calculate the heat lost by the cylinder.

6-34 Liquid ammonia at 10°C and 1 atm flows across a horizontal cylinder at a velocity of 5 m/s. The cylinder has a diameter of 2.5 cm and length of 125 cm and is maintained at a temperature of 30°C. Calculate the heat lost by the cylinder.

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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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.

Question

6-34 Liquid ammonia at 10°C and 1 atm flows across a horizontal
cylinder at a velocity of 5 m/s. The cylinder has a diameter of 2.5 cm
and length of 125 cm and is maintained at a temperature of 30°C.
Calculate the heat lost by the cylinder.
6-65 Water flows over a 3-mm-diameter sphere at 5 m/s. The free-
stream temperature is 38°C, and the sphere is maintained at 93°C.
Calculate the heat-transfer rate.
6-95 A tube bank consists of a square array of 144 tubes arranged in an
in-line position. The tubes have a diameter of 1.5 cm and length of 1.0
m; the center-to-center tube spacing is 2.0 cm. If the surface temperature
of the tubes is maintained at 350 K and air enters the tube bank at 1 atm,
300 K, and u∞ = 6 m/s, calculate the total heat lost by the tubes.

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