Engineering Principles 2
Project
This Project consists of 3 parts: Project 1a, Project 1b and Project 1c.
Each part constitutes 10% of your overall grade for a total of 30%.
You may work in groups of 1 to 5 members. You must stick to the same group for al

Tutorial 9
1) A mixing tank has Standard dimension ratios. The tank diameter is 1.83 m. It
contains a disk turbine impeller with 6 blades and the impeller diameter is 0.61 m. The
turbine is operated at 90 rpm and the liquid in the tank has a viscosity of

Microscopic Balances
1
Velocity field
http:/www.youtube.com/watch?v=mdN8OOkx2ko&feature=BFa&list=PL0EC6527BE871ABA3
2
Microscopic Balances - summary
For Newtonian fluid of constant density and
viscosity (Cartesian coordinates)
a) Continuity equation
v x v

Tutorial 2
1. Calculate the viscosity of air at 100C.
2. Calculate the viscosity of carbon dioxide at 50C.
3. Calculate the viscosity of water at 60C.
4. An open cylindrical tank contains water. Oil with a specific gravity of 0.8 forms a layer
0.9 m deep

Tutorial 5
1) Consider the steady, fully developed flow of water through a smooth circular pipe of
length 1000 m and diameter of 1 cm. The outlet of the pipe is 100 m above the inlet.
Calculate the pressure drop when the velocity of water is 0.1 m/s. (101

Tutorial 4
1. A large pressurized tank containing water has a smooth well-rounded 10-cm diameter
orifice at the bottom. Water discharges from the orifice at atmospheric pressure of 100
kPa. If the water level is 3 m above the orifice and the pressure in t

Tutorial 12
1) A certain drug solution flows through a horizontal 5.24 cm diameter and 14.9 m long
pipe with a mean velocity of 7.28 cm/s. What is the pressure drop? The solution is a
power law fluid with n = 0.40, k = 15.23 kg/m s2-n, density = 1041 kg/m

Tutorial 11
1) Catheters can be inserted into arteries and veins to administer medicine to the patient.
However, the catheter will reduce the blood flow through the artery or vein. Consider a
catheter of radius kR (k<1) that is placed in a horizontal bloo

Tutorial 10
1) Consider the steady laminar flow of a Newtonian fluid in a gap between two parallel
horizontal plates as shown in the figure below. The upper plate moves to the left with a
velocity of 3 m/s and the lower plate moves to the right with a vel

Mixing
1
Motivation
Why do we need mixing in chemical reactor?
2
Motivation
Why do we need mixing in bioreactor?
3
Motivation
Why is scale up so important?
Lab
Industrial
4
Motivation
Why is scale up so important?
https:/www.youtube.com/watch?v=pRZPpdA
A

Microscopic Balances
1
Objectives of this lecture
Explain the behavior of non-Newtonian
fluids.
Analyze pipe flow problems for nonNewtonian fluids.
2
Newtonian Fluids
For a Newtonian fluid, shear stress is directly
proportional to deformation rate (or s

Microscopic Balances
1
A
Long rectangular pipe
Water
<V>
90C
Heater at bottom
How long does it take for your hand to get burned?
2
B
Long rectangular pipe
Water
<V>
90C
Heater at bottom
How long does it take for your hand to get burned?
3
Microscopic Bala

Materials selection and
properties
1
Importance of materials
1) The selection of materials plays a very important
role in the success or failure of a plant.
2) Many processes are operated at severe
conditions (high temperatures, high pressures,
high flow

0.01
0.Engineering Principles 2
Project 1b
Project 1b consists of 3 parts: (A), (B) and (C).
Total marks = 10.
You must stay with the same group as Project 1a.
You may discuss with other group members but you are not allowed to copy other
peoples work. Ea

PHE1035 Engineering Principles 2 (Practice Test 1)
Quiz 1 (Open Book, Time: 1 h 30 min)
This quiz contains a total of 2 pages and 5 questions. Answer all questions. Show all working.
Total marks = 100.
1. (20 marks) Consider the manometer setup between 2

Conservation equations
Conservation of energy
1
Motivation
$250 million cell culture facility for the production of
monoclonal antibodies and recombinant proteins.
https:[email protected]/discuss/72157619805093311/
2
Motivation
How do we r

Dimensional analysis
1
Objectives of this lecture
Be able to perform dimensional analysis
Be able to perform simple scale-up or scale down
calculations.
2
Flow in pipes Moody diagram
What is special about this diagram?
http:/creativecommons.org/licenses

Conservation laws
Conservation of Mass
1
Objectives for this lecture
Apply an intuitive problem solving technique in
approaching engineering problems.
Select an appropriate system or control volume to
solve a fluid mechanics problem.
Apply conservation

Pumps
1
Objectives of this lecture
Identify various types of pumps and understand how
they work.
Use energy balance to analyze piping systems with
pumps.
Understand pump performance curves in order to
perform pump selection.
2
Pumps, compressors, fans

PHE1035 Engineering Principles 2 (Practice Test 2)
Quiz 1 (Open Book, Time: 1 h 30 min)
This quiz contains a total of 2 pages and 5 questions. Answer all questions. Show all working.
Total marks = 100.
1. (20 marks) Consider the manometer setup below. Det

Engineering Principles 2
1
Introduction
Course lecturer & tutor:
- Dr. Leslie Loo
Email: [email protected]
Tel: 65928526
Email or call for consultation.
2
Textbook
Course textbook:
Fluid Mechanics by Bruce Munson et al (2013)
Fundamentals

Tutorial 1
1. Convert 62.424 lb/ft3 to kg/m3. (ans: 1000 kg/m3)
2. Convert 30 psi to (a) kPa (b) mmHg (ans: 206.8 kPa, 1551 mmHg)
3. A tank contains 500 kg of a liquid whose specific gravity is 2. Determine the volume
of the liquid. (ans: 0.25 m3)
4. A ta

Microscopic Balances
1
Microscopic Balances
For Newtonian fluid of constant density and
viscosity (Cylindrical coordinates)
a) Continuity equation
1 rvr 1 v v z
0
r r
r z
b) Momentum equations (Navier-Stokes)
vr
1 rvr 1 2 vr 2 v 2 vr
vr v vr v2
vr
p

Tutorial 3
1. Water enters a tank through 2 pipes at rates of 950 L/min and 400 L/min. The water
exits the tank through an opening of 20 cm diameter. The level of water in the tank
remains constant. Determine the average velocity of the water leaving the