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Liquid ammonia at 10°C and 1 atm flows across a horizontal cylinder at a velocity of m/s. The cylinder has a diameter of 2.5 cm and length of 125 cm and is maintained

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.3P

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Concept explainers

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

Q4/ 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.

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