Explanation Given: The width of the duct ( b ) is 1.5 ft. The depth of the duct ( h ) is 3.0 ft. The flow rate air ( Q ) is 15 ft 3 / s . Calculation: Draw the free body diagram of the duct as in Figure (1). Convert the flow rate unit of the duct form ft 3 / min to ft 3 / s . Q = 900 ft 3 / min × 1 min 60 secs = 15 ft 3 / s Calculate the area A A of duct A . A A = b h A A = 1.5 ft × 3.0 ft = 4.5 ft 2 Calculate the velocity of air in duct A ( V A ) . Q = A A V A 15 ft 3 / s = 4.5 ft 2 × V A V A = 15 4.5 V A = 3.33 ft / s Calculate the area of duct B ( A B ) . A B = b h A B = 1.0 ft × 1.5 ft = 1.5 ft 2 Calculate the velocity of air in duct B ( V B ) . Q = A B V B 15 ft 3 / s = 1.5 ft 2 × V B V B = 15 1.5 V B = 10 ft / s Since the point B is open to atmosphere, the pressure at point B as zero. p B = 0 Calculate the pressure p A at point A using Bernoulli’s Equation between A and B . p A ρ + V A 2 2 + g z A = p B ρ + V B 2 2 + g z B p A 0.00240 slug/ft 3 + ( 3

2nd Edition

ISBN: 9780134649290

Author: Russell C. Hibbeler

Publisher: PEARSON

See similar textbooks

Videos

Question

Chapter 6, Problem 32P

To determine

The horizontal force acting on the end plate B of the duct.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 6, Problem 31P

Chapter 6, Problem 33P

Students have asked these similar questions

A boiler with 80% efficiency produces steam at 40bar and 500 C at a rate of 1.128kg/s. The temperature of the feed water is raised from 25 C to 125 C in the economizer and the ambient air is drawn to the boiler at a rate of 2.70 kg/s at 16 C. The flue gases leave the chimney at rate of 3 kg/s at 150 C with specific heat of 1.01 kJ/kg.K. The dryness fraction of steam collected in the steam drum is 0.95. 1- Determine the heat value of the fuel. 2- The equivalence evaporation. 3- Draw the heat balance sheet.

A rotating shaft is made of 42 mm by 4 mm thick cold-drawn round steel tubing and has a 6 mm diameter hole drilled transversely through it. The shaft is subjected to a pulsating torque fluctuating from 20 to 160 Nm and a completely reversed bending moment of 200 Nm. The steel tubing has a minimum strength of Sut = 410 MPa (60 ksi). The static stress-concentration factor for the hole is 2.4 for bending and 1.9 for torsion. The maximum operating temperature is 400˚C and a reliability of 99.9% is to be assumed. Find the factor of safety for infinite life using the modified Goodman failure criterion.

I need help with a MATLAB code. This code just keeps running and does not give me any plots. I even reduced the tolerance from 1e-9 to 1e-6. Can you help me fix this? Please make sure your solution runs. % Initial Conditions rev = 0:0.001:2; g1 = deg2rad(1); g2 = deg2rad(3); g3 = deg2rad(6); g4 = deg2rad(30); g0 = deg2rad(0); Z0 = 0; w0 = [0; Z0*cos(g0); -Z0*sin(g0)]; Z1 = 5; w1 = [0; Z1*cos(g1); -Z1*sin(g1)]; Z2 = 11; w2 = [0; Z2*cos(g2); -Z2*sin(g2)]; [v3, psi3, eta3] = Nut_angle(Z2, g2, w2); plot(v3, psi3) function dwedt = K_DDE(~, w_en) % Extracting the initial condtions to a variable % Extracting the initial condtions to a variable w = w_en(1:3); e = w_en(4:7); Z = w_en(8); I = 0.060214; J = 0.015707; x = (J/I) - 1; y = Z - 1; s = Z; % Kinematic Differential Equations dedt = zeros(4,1); dedt(1) = pi*(e(3)*(s-w(2)-1) + e(2)*w(3) + e(4)*w(1)); dedt(2) = pi*(e(4)*(w(2)-1-s) + e(3)*w(1) - e(1)*w(3)); dedt(3) = pi*(-e(1)*(s-w(2)-1) - e(2)*w(1) + e(4)*w(3));…

Chapter 6 Solutions

Fluid Mechanics (2nd Edition)

Ch. 6 - Prob. 1FP Ch. 6 - The shield of negligible weight is held at an...Ch. 6 - Prob. 3FP Ch. 6 - Crude oil flows into the open air at the same rate...Ch. 6 - The table fan develops a slipstream that has a...Ch. 6 - Prob. 6FP Ch. 6 - Determine the linear momentum of a mass of fluid...Ch. 6 - Prob. 2P Ch. 6 - A volumetric discharge of 1.25 m3/s passes out the...Ch. 6 - Water flows with a velocity of 6 m/s through the...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.