The rectangular duct section of 400mm*300mm size carries 50 m^3/min of air, with density 1.2 kg/m^3. Where the f=0.015. A- Determine the equivalent diameter of circular duct if: 1. when the quantity of air passing through the rectangular and circular ducts is same. 2. when the velocity of air passing through the rectangular and circular ducts is same. B- Determine the pressure loss per 75m length of rectangular duct. C- Determine the pressure loss per 75m length of equivalent diameter of circular duct, when the quantity and velocity of air passing through the rectangular and circular ducts is same .

The rectangular duct section of 400mm*300mm size carries 50 m^3/min of air, with density 1.2 kg/m^3. Where the f=0.015. A- Determine the equivalent diameter of circular duct if: 1. when the quantity of air passing through the rectangular and circular ducts is same. 2. when the velocity of air passing through the rectangular and circular ducts is same. B- Determine the pressure loss per 75m length of rectangular duct. C- Determine the pressure loss per 75m length of equivalent diameter of circular duct, when the quantity and velocity of air passing through the rectangular and circular ducts is same .

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.4P: 5.4 Evaluate the Stanton number for flow over a tube from the following data: , , , , .

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