ROSE-HULMAN INSTITUTE OF TECHNOLOGY

ES201 – Conservation and Accounting Principles — Winter Quarter 2011-2012

…Except for exam dates all material is subject to change.

…Reading and HW assignments will usually be finalized a couple of days before they appear on the schedule. Material in italic type has not been finalized. Check highlighted revision date-time stamp for when last update.

…Reading and HW assignments marked with an asterisk (*) are available under Text Supplements on the Web.

Revised  -- 02/06/2012   1825

Class

Date

Day

Lesson Objectives

Reading To Be Completed Before Class

Homework Started
After Class

HW

Due Class

1

11-28

M

Introduction (1)

…Explain course administrative policies, e.g. development and evaluation activities, homework guidelines, etc.

…Discuss place of ES201 in SEC.

…Discuss engineering vs. science, engineering science vs. science; engineering analysis vs. engineering design.

…Discuss Systems, Accounting, Modeling Process. Demonstrate how its “natural” to construct a model: select a system, count something (accounting principle), and make modeling assumptions. Illustrate usefulness of symbolic solution.

- - - - -

 

Set 1

HW Set 1 Link

4

2

11-29

T

Basic Concepts (1)

…Answer questions about Chap 2. Tough and abstract chapter that will be revisited many times. Just introduce key concepts, e.g. use example to introduce SAM Concepts: fundamental laws & accounting principles: system, properties, process, accounting concept (storage, transport, and generation), and conservation.

…Review units and dimensions, esp. use in calculations and unit conversions.

Explore difference between mass (kg, lbm, slug) and weight (N, lbf): W=mg.

Preface (FYI)

Chapter 1

Chapter 2 (Skim)

Appendices A & B

 

Set 2

HW Set 2 Link

 

4

3

12-1

R

Mass (1)

…Develop Conservation of Mass via “Four Questions”

…Introduce absolute and relative measures of mass and weight density.

…Work examples focusing on basic formulations without relation for mass flow rate in terms of velocity, density, and cross-sectional area.

Sections
 3.1, 3.2, 3.6

Set 3

Probs. 3.2, 3.24

6

4

12-2

F

Mass (2)

…Calculating mass flow rate given the velocity profile: important assumptions.

…Work examples that illustrate typical modeling assumptions. Stress use of different system boundaries and constructing solution.

3.3

Set 4

Probs. 3.4, 3.30, 3.8

 

6

5

12-5

M

Mass (3)

…Review a substance model (constitutive relationship) relating P, v, and T for a gas, the ideal gas model.

…Work more examples.

3.7; 3.8

Set 5
Probs. 3.26, 3.28, 3.31

 

8

6

12-6

T

Mass (4)

…Discuss mass and mole basis for specifying mixture composition.

…Discuss species accounting equations and its application to problems with and without chemical reaction.

3.4

Set 6
Probs. 3.12, 3.13

 

8

7

12-8

R

Mass (5)

…Work examples without chemical reactions.

3.5  and Species Accounting Insert

Set 7
Probs. 3.15, 3.16

 

10

8

12-9

F

Mass (6)

…More examples

 

Set 8
Probs. 3.20, 3.21

 

10

9

12-12

M

Linear Momentum (1)

…Introduce Conservation of Linear Momentum via “Four Questions”

…Work example to illustrate: use of free-body diagrams; particle kinematics; open/closed systems

5.1

Set 9

HW Set 9 Link

Note Due Date

11

10

12-13

T

Linear Momentum (2)

…Pressure forces – Net external force due to pressure forces.

…Work examples (open and closed systems)

5.2

Set 10

5.4, 5.37

Due Tuesday
before winter break

14

11

12-15

R

Linear Momentum (3)

…Work examples (open and closed systems)

Reread 5.2 examples

Set 11

5.13, 5.15

14

12

12-16

F

TEST 1 – Introduction, Basic Concepts & Conservation of Mass

--------

Set 12 – None

 

13

12-19

M

Linear Momentum (4)

…Friction forces: static vs. kinetic friction

…Work Examples

5.3

Set 13

5.16, 5.17

Due Friday after winter break

16

14

12-20

T

Linear Momentum (5)

…Relative motion

Pg. 5-7 to 8

Pg. 5-48 to 51

Set 14

5.40, 5.42

16

 

 

 

Winter Holiday Break

 

 

 

15

1-5

R

Linear Momentum (6)

…Impact: impulse and impulsive forces

…Examples

5.4

Set 15

5.21, 5.35

18

16

1-6

F

Linear Momentum (7)

…Examples

-----

Set 16

5.19, 5.44

18

17

1-9

M

Angular Momentum (1)

…Moment of a force as a vector cross-product. Use of vector decomposition into normal and parallel components to find cross product in two dimensions.

…Discuss the moment of a force including a force couple.

…Discuss the basic definition of angular momentum for a particle

6.1–6.2.1

Set 17

6.18, 6.19

20

18

1-10

T

Angular Momentum (2)

…Develop conservation of angular momentum via “Four Questions”

…Modeling surface forces — reactions: normal forces, shear forces, and moments

6.2 to 6.3 (thru page 6-21)

Set 18

6.1, 6.27

20

19

1-12

R

Angular Momentum (3)

…Steady-state and fixed-axis rotation examples (Open and closed systems)

6.3 (page 6-25 to 6-26)

Set 19

6.3, 6.22

22

20

1-13

F

Angular Momentum (4)

…Translation/Tipping Problems

6.3 (page 6-22 to 6-24)

Set 20

6.5, 6.28

22

21

1-16

M

Angular Momentum (5)

…Examples

---

Set 21 – DUE Thursday

6.3, 6.4, 6.31

23

22

1-17

T

Energy (1)

…Mechanical work and power

…Integrating conservation of linear momentum for a particle

with time ---- Finite-time (Impulse-momentum form)

with displacement ---- Work-energy principle for a particle

…Restrictions on work-energy principle for a particle

7.1.1–7.1.2

(thru pg 7-8)

Set 22

7.1, 7.43

26

23

1-19

R

Energy (2)

…What is energy? Relation to thermodynamic work and the first law of thermodynamics

…How can it be stored? Types of energy: kinetic, gravitational potential, internal, elastic (spring), other.

…How can it be transported?

Transfer of energy by work (non-flow and flow boundaries)

Transfer of energy by heat transfer (basic definition)

Transfer of energy with mass at flow boundaries

…How can it be produced or destroyed?

…Putting it all together -- Conservation of Energy Equation

7.2 (Overview)

Set 23

7.10, 7.11

26

24

1-20

F

TEST 2 (Lectures 9–21)   

 

Set 24 --- None

 

25

1-23

M

Energy (3)

…Transfer of energy by work at non-flow boundaries revisited

Compression and expansion work (PdV work)

Shaft work and power

Electric work and power

…Transfer of energy by work at flow boundaries revisited

Revisit 7.2.3 – 7.2.5;

7.5

Set 25

7.9, 7.12

28

26

1-24

T

Energy (4)

…Conservation of Energy and its Application

…modeling assumptions about the system

…modeling assumptions about the substance

…modeling assumptions about heat transfer and work transfer of energy

7.3

Set 26

7.15, 7.17

28

27

1-26

R

Energy (5)

…Applications – Open/closed systems without substance models

Steady-state Devices Handout (If not distributed in class click link to open file.)

Set 27

7.18, 19

30

28

1-27

F

Energy (6)

…Mechanical Energy Balance (Restricted application of Conservation of Energy)

… Mechanical energy stored in a spring

…Applications—typical MEB examples

Mechanical Energy Balance Notes (Replaces material found between 7-34/35 of text. If not distributed in class click link to open file.

Set 28

7.48, 7.49

30

29

1-30

M

Energy (7)

…Substance models—ideal gas and incompressible substance models

…Applications with ideal gas model

7.4

Set 29

7.26, 7.59

32

30

1-31

T

Energy (8)

…Applications with incompressible substance and ideal gas models

…Heat transfer mechanisms, especially convection heat transfer

7.7

Set 30

7.34, 7.50 7.27

 

32

31

2-2

R

Energy (8A)

… Applications

Set 31 

7.60, 7.63

33

32

2-3

F

Energy (9)

…Electrical work and power

Instantaneous and average electric power

AC Power and effective voltage and current

AC Power and steady-state systems

7.8

Set 32

7.35, 7.36

 

36

33

2-6

M

Energy (10)

… Applications

Set 33

7.24

36

34

2-7

T

Test 3 (Lectures 22 - 31)

 

Set 34 - None

 

35

2-9

R

Energy (11)

…Thermodynamic cycles

…Measures of cycle performance

 7.9;

Cycle Example after 7.9

Set 35

7.39, 7.40

 

38

36

2-10

F

Entropy (1)

…Everyday experiences with the spontaneous processes

…Second Law of Thermodynamics

…Accounting Principle for Entropy

7.6;  8.1

Set 36

8.5, 8.6

38

37

2-13

M

Entropy (2)

…Empirical temperature vs. thermodynamic temperature scales

…Applications

8.2–8.3

Set 37

8.1, 8.8

40

38

2-14

T

Entropy (3)

…Cycle performance --- “What’s the ‘best’ cycle?”

8.4

Set 38

8.9, 8.11

40

39

2-16

R

Entropy (4)

…Calculating entropy changes -- Substance models

8.5

Set 39

8.15, 8.26, 8.16

Not
Collected

40

2-17

F

Entropy (5)

…Applications

 

Set 40
8.17, 8.23

Not Collected

 

 

 

FINAL EXAM WEEK