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(a) Estimate the velocity and mass flow rate by B.E. (b) What is the force tending to tear the nozzle off the pipe?

(a) Estimate the velocity and mass flow rate by B.E. (b) What is the force tending to tear the nozzle off the pipe?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Answers- a) V1= 19.9 ft/ s; V2 = 79.7 ft/ s; m = 103.4 lbm/s

b)F=288 lbf

### Problem 7.11 A nozzle is attached to a pipe by a flanged joint as shown in Figure 7.29. The fluid flowing through is water. The cross-sectional area perpendicular to the flow is: - At Point 1: 12 in² - At Point 2: 3 in² At Point 2, the flow is open to the atmosphere. The pressure at Point 1 is approximately 40 psig. #### Tasks: (a) **Estimate the Velocity and Mass Flow Rate Using Bernoulli's Equation:** Using Bernoulli’s equation, calculate the velocity of the fluid at Points 1 and 2, and determine the corresponding mass flow rate. (b) **Determine the Force Tending to Tear the Nozzle Off the Pipe:** Calculate the force exerted on the nozzle due to the fluid flow, which tends to separate the nozzle from the pipe. ### Figure 7.29: Nozzle Attached to Pipe This figure shows water flowing through a pipe into a nozzle. The pipe is connected to the nozzle, and the flow direction is from left to right. The nozzle reduces in cross-section, leading to an increase in flow speed. The points of interest are marked as 1 and 2: - **Point 1**: The beginning of the nozzle where water initially flows from the pipe. - **Point 2**: The exit of the nozzle where water is discharged into the atmosphere. An axis is provided indicating the positive x-direction towards the right side, aligning with the flow direction.
Transcribed Image Text:### Problem 7.11 A nozzle is attached to a pipe by a flanged joint as shown in Figure 7.29. The fluid flowing through is water. The cross-sectional area perpendicular to the flow is: - At Point 1: 12 in² - At Point 2: 3 in² At Point 2, the flow is open to the atmosphere. The pressure at Point 1 is approximately 40 psig. #### Tasks: (a) **Estimate the Velocity and Mass Flow Rate Using Bernoulli's Equation:** Using Bernoulli’s equation, calculate the velocity of the fluid at Points 1 and 2, and determine the corresponding mass flow rate. (b) **Determine the Force Tending to Tear the Nozzle Off the Pipe:** Calculate the force exerted on the nozzle due to the fluid flow, which tends to separate the nozzle from the pipe. ### Figure 7.29: Nozzle Attached to Pipe This figure shows water flowing through a pipe into a nozzle. The pipe is connected to the nozzle, and the flow direction is from left to right. The nozzle reduces in cross-section, leading to an increase in flow speed. The points of interest are marked as 1 and 2: - **Point 1**: The beginning of the nozzle where water initially flows from the pipe. - **Point 2**: The exit of the nozzle where water is discharged into the atmosphere. An axis is provided indicating the positive x-direction towards the right side, aligning with the flow direction.
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