A circular stack has a diameter of 16 m at its base and converges uniformly to a diameter of 12 m at a height of 40 m. Coal gas, having a specific weight of 4 N/m3, enters the stack at the bottom. Its specific weight increases uniformly until at the top where it has a value of 6 N/m3. Calculate the velocity in m/s and the discharge in m3/s for every 10 m up the stack if the velocity at the bottom is 4.6 m/s. Determine the discharge at a height of 10 m from the bottom of the circular stack in m3/s.Determine the discharge at a height of 20 m from the bottom of the circular stack in m3/s.Determine the discharge at a height of 30 m from the bottom of the circular stack in m3/s.Determine the discharge at a height of 40 m from the bottom of the circular stack in m3/s.

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A circular stack has a diameter of 16 m at its base and converges uniformly to a diameter of 12 m at a height of 40 m. Coal gas, having a specific weight of 4 N/m³, enters the stack at the bottom. Its specific weight increases uniformly until at the top where it has a value of 6 N/m³. Calculate the velocity in m/s and the discharge in m³/s for every 10 m up the stack if the velocity at the bottom is 4.6 m/s.

Determine the discharge at a height of 10 m from the bottom of the circular stack in m³/s.
Determine the discharge at a height of 20 m from the bottom of the circular stack in m³/s.
Determine the discharge at a height of 30 m from the bottom of the circular stack in m³/s.
Determine the discharge at a height of 40 m from the bottom of the circular stack in m³/s.

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