Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
7th Edition
ISBN: 9780072848236
Author: Warren McCabe, Julian C. Smith, Peter Harriott
Publisher: McGraw-Hill Companies, The
Question
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Chapter 4, Problem 4.3P

(a)

Interpretation Introduction

Interpretation:

The initial flowrate of water from the tank is to be calculated.

Concept Introduction:

The Bernoulli equation without friction is:

  paρ+gZagc+ua22gc=pbρ+gZbgc+ub22gc ...... (1)

Here, pa and pb are the pressures at points a and b of the tube. Za and Zb are the height of the tube at points a and b , ua and ub are the liquid velocity at points a and b of the tube, ρ is the density of the fluid and g is the acceleration due to gravity.

(b)

Interpretation Introduction

Interpretation:

Time required for the tank to empty is to be calculated.

Concept Introduction:

The Bernoulli equation without friction is:

  paρ+gZagc+ua22gc=pbρ+gZbgc+ub22gc ...... (1)

Here, pa and pb are the pressures at points a and b of the tube. Za and Zb are the height of the tube at points a and b , ua and ub are the liquid velocity at points a and b of the tube, ρ is the density of the fluid and g is the acceleration due to gravity.

Volume of a cylinder having height h and diameter d is calculated as:

  V=πd2h4 ...... (2)

(c)

Interpretation Introduction

Interpretation:

The average flowrate is to be calculated and compared with the initial flowrate of water.

Concept Introduction:

The Bernoulli equation without friction is:

  paρ+gZagc+ua22gc=pbρ+gZbgc+ub22gc ...... (1)

Here, pa and pb are the pressures at points a and b of the tube. Za and Zb are the height of the tube at points a and b , ua and ub are the liquid velocity at points a and b of the tube, ρ is the density of the fluid and g is the acceleration due to gravity.

Volume of a cylinder having height h and diameter d is calculated as:

  V=πd2h4 ...... (2)

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Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:9780072848236
Author:Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:McGraw-Hill Companies, The