APPLIED THERMAL ENGINEERING | Engineering Mathematics | Applied Science and Basic Thermal Engineering | REFERENCES BOOKS | DIPLOMA 5th and 6th Semester



Board of Technical Examinations, Bangalore


 

 

Course

Title:

APPLIED

THERMAL ENGINEERING

Scheme (L:T:P) : 4:0:0

Total Contact Hours: 52

Course Code:

15ME52T

Type of Course: Lectures, Self Study & Quiz

Credit :04

Core/ Elective:

Core

CIE- 25 Marks

SEE- 100 Marks

 

Prerequisites: Knowledge of Engineering Mathematics, Applied Science and Basic Thermal Engineering

 Course Objectives:                                                                                                            

 

1.                       This course will provide the basic knowledge of thermal engineering which will function as foundation in applications in major fields of mechanical engineering and technology notably in steam and nuclear power plants.

2.                  This course would develop knowledge and skills related to boilers, boiler mountings and accessories, compressors, heat exchangers, steam turbines etc. This course is thus very important for mechanical engineer.

 

 Course Outcomes:                                                                                                     

On successful completion of the course, the students will be able to attain CO:

 

Course Outcome

CL

Linked PO

Teaching Hrs

CO1

Determine                      steam                      properties                      and dryness fractions.

R/U/A

1,2

10

CO2

Classify and explain boilers, boiler mountings and accessories

R/U/A

2

09

CO3

Identify the elements and processes of

steam condensers and cooling towers And working of steam Nozzles

R/U/A

1,2

11

CO4

Understand  the                         working of steam Turbines

U/A

1,2

10

CO 5

Operate air compressors and observe the            parameters            affecting          the

performance

 

R/U/A

1,2

06

CO6

Know the mechanism of refrigeration, and    its          types          and          different          air

conditioning system

R/U

2

06

 

 

Total sessions

52

Legend: R; Remember, U: Understand A: Application An: Analysis


 

COURSE-PO ATTAINMENT MATRIX

 

Course

Programme Outcomes

1

2

3

4

5

6

7

8

9

10

APPLIED THERMAL

ENGINEERING

 

1

 

3

 

0

 

0

 

0

 

0

 

0

 

0

 

0

 

0

Level 3- Highly Addressed, Level 2-Moderately Addressed, Level 1-Low Addressed.

Method is to relate the level of PO with the number of hours devoted to the COs which address the given PO. If >40% of classroom sessions addressing a particular PO, it is considered that PO is addressed at Level 3

If 25 to 40% of classroom sessions addressing a particular PO, it is considered that PO is addressed at Level 2 If 5 to 25% of classroom sessions addressing a particular PO, it is considered that PO is addressed at Level 1

If < 5% of classroom sessions addressing a particular PO, it is considered that PO is considered not-addressed

 

COURSE CONTENT AND BLUE PRINT OF MARKS FOR SEE

 

Unit No

 

Unit Name

Hour

Questions to be set for SEE/Marks

Marks Weightage

Weightage (%)

R

U

A

 

 

1

FORMATION OF STEAM

10

5

5

20

30

20.69

2

STEAM BOILERS

10

5

10

10

25

17.25

 

3

STEAM CONDENSERS,

COOLING TOWERS AND STEAM NOZZELS

 

10

 

10

 

10

 

10

 

30

 

20.69

4

STEAM TURBINES

10

-

10

20

30

20.69

5

AIR COMPRESSORS

06

-

5

10

15

10.34

6

REFRIGERATION AND AIR CONDITIONING

06

5

10

-

15

10.34

 

Total

52

25

50

70

145

100

Legend: R; Remember, U: Understand A: Application

Text Box: UNITI: FORMATION OF STEAM	10 Hrs


Concept of two phase system - Formation of steam- Definition and representation of wet steam,

dry steam, saturated steam and superheated steam on T-H Diagram.

Concept and determination of dryness fraction-Degree of superheat-Latent heat-sensible heat, enthalpy-entropy-Internal energy-External work of evaporation and specific volume of steam- Use of Steam tables and Mollier chart- (Heat Entropy Chart).-Numerical examples based on above.

Steam vapour cycles-Carnot cycle- Schematic diagram –Representation on PV & T-S diagram- Rankine cycle-Schematic diagram- Representation on PV & T-S diagram-(No numerical Problems on steam vapour cycles)

Steam Calorimeters- Barrel Calorimeter, Separating Calorimeter, Throttling Calorimeter and combined Separating & Throttling calorimeters.-Limitations of Calorimeter-(No numerical Problems on Calorimeters).


Text Box: UNIT II: STEAM BOILERS	10 Hrs

Steam boiler-Concept-definition-Indian Boilers Regulation (IBR)- Classification of boiler – function of boiler- Low pressure boilers- Sketch and working of Cochran boiler- Babcock and Wilcox boiler-Merits and demerits- High pressure boilers- Sketch and working of Lamont and Benson boiler- Merits and demerits- Comparison of water tube and fire tube boilers- Boiler mountings and accessories, Boiler draught system-concept and classification -steam jet draught.

Text Box: UNIT III:  STEAM CONDENSERS, COOLING TOWERS & NOZZELS	10Hrs


Introduction-Steam condenser-Concept-Classification-Functions- Jet condensers and surface condensers-working-merits and demerits of surface condensers over jet condensers -Cooling towers- Classification, function and working.

Steam nozzles-concept-Types-Flow of steam through convergent-divergent nozzle-Friction in a nozzle-Discharge of steam through nozzles-Critical pressure ratio (no derivation)-Methods of calculation of cross sectional areas at throat and exit for maximum discharge-Effect of friction in nozzles-Supersaturated flow through nozzle- Numerical on nozzles using Mollier  Chart only.

Text Box: UNIT IV: STEAM TURBINES	10 Hrs


Steam turbine –concept- classification - Working principle with line diagram of a simple De-

Laval turbine – velocity diagram of impulse turbine- Expression for work done, axial thrust, tangential thrust, blade and diagram efficiency, nozzle efficiency- Compounding of steam turbine-Need for compounding- Pressure compounding.- Velocity compounding- Pressure velocity compounding. Problems on single stage impulse turbines (graphical method only) – Concept of reaction turbines – Parson’s – Delaval (No numerical).

Text Box: UNIT V: AIR COMPRESSOR	06 Hrs


Air compressor-concepts, functions, classification and applications- Single stage reciprocating

air compressor- construction and working (with line diagram) Expression for work done and power required by single stage reciprocating compressor (without derivation), Simple problems on work done and power required.

Multi stage compression – advantages of multistage compression-Rotary Compressors - working of rotary Compressor-Difference between reciprocating and rotary compressors - concept of screw compressor (oil free).

Text Box: UNIT VI: REFRIGERATION AND AIR CONDITIONING	06 Hrs


Refrigeration - Definition -Unit of refrigeration -Coefficient of performance (COP)-Vapour compression refrigeration with flow diagram-Vapour absorption refrigeration with flow diagram- Refrigerants –Types- Factors affecting the choice of refrigerants- properties of good refrigerants.

Psychrometry- definition-Psychrometric terms - dry air, saturated air, dry bulb temperature- Wet bulb temperature, dew point temperature, relative humidity, absolute humidity, specific humidity.

Air Conditioning- classification-winter Air Conditioning-Summer Air conditioning-Year round air conditioning-


®REFERENCES

 

Sl.No.

Title of Books

Author

Publication

1.

Heat Engines

Pandya and Shah

Charotar Publishing

House

2.

Thermodynamics and Heat

power Engg.

Mathur and Mehta

Tata Mcgraw- Hill

3

A Text book of Thermal

Engineering

R S Khurmi& J K Gupta

S Chand

4.

Thermal Engineering

P.L. Ballaney

Khanna.Publishers

5

Thermal Engineering

A. S. Sarao

SatyaPrakashan

6

Thermal Engineering

R K Rajput

Laxmi.Publications

7

Practical Thermodynamics

G D Rai

Khanna Publisher

8

Thermal Engineering

Mahesh M Rathore

Mcgraw- Hill

Education

9

Basic and applied

thermodynamics

P K Nag

McGraw Hill

education

 LIST OF SOFTWARES/ LEARNING WEBSITES:                                                                                                     

a.  http://www.nptel.iitm.ac.in/video.php?subjectId=112105123 (IIT-B Video lectures)

b.  http://www.thermofluids.net/

c.  http://www.learnerstv.com/Free-Engineering-Video-lectures-ltv301-Page1.htm

d.  http://www.grc.nasa.gov/WWW/k-12/airplane/thermo.html

e.  http://www.youtube.com/watch?v=Xb05CaG7TsQ

f.  http://www.youtube.com/watch?v=aAfBSJObd6Y

g.  http://www.youtube.com/watch?v=DHUwFuHuCdw

h.  http://www.youtube.com/watch?v=kJlmRT4E6R0

i.  http://www.youtube.com/watch?v=GKqG6n6nAmg

 SUGGESTED LIST OF STUDENT ACTIVITYS                                                                                                     

Note: the following activities or similar activities for assessing CIE (IA) for 5 marks (Any one)

å         Each student should do any one of the following type activity or similar activity related to the course and before take up, get it approved from concerned Teacher and HOD.

å         Each student should conduct different activity and no repeating should occur

 

1

Interpret steam tables, mollier chart and relationship between different thermodynamic

properties.

2

Prepare Mollier charts and show different regions.

3

Visit to sugar factory / Dairy / steam power plant, Prepare Hand written Report on specifications of boiler and list of mountings and accessories with their functions,

safety measured observed.

2

At least one visit of any power plant/ industry, student should observe the operational aspects, safety in handling boiler, air compressor, heat exchanger, cooling tower,

condenser etc. and submit hand written report.

3

Collect/ the details and specifications of various types of Steam condensers/Cooling

towers used in industry.

4

Collect/ download product catalogues with specification of various types of Air

compressors used in industry.


5

Each       student       should       prepare       a               detailed      report        showing     the construction/components/Working of Domestic refrigerator or Air Conditioners

SPECIAL INSTRUCTIONAL STRATEGIES

 

 

UNIT NO

UNIT NAME

STARATEGIES

1

FORMATION OF STEAM

lectures and Power point presentations/

Video/ Video movies

 

2

 

STEAM BOILERS

Lectures/Presentations,     Showing     charts,

Video movies, Expose to real life industries situation, industrial visits

 

3

STEAM CONDENSERS,

COOLING TOWERS AND STEAM NOZZELS

Lectures/Presentations,     Showing     charts,

Video movies, Expose to real life industries situation, industrial visits

 

4

 

STEAM TURBINES

Lectures/Presentations,      Showing      chart,

Expose to real life industries situation, industrial visits.

5

AIR COMPRESSORS

Lectures/Presentations, Showing chart,

 

6

REFRIGERATION AND AIR CONDITIONING

Lectures/Presentations,      Showing      chart,

Expose to real life industries situation, industrial visits

 

 

Course Assessment and Evaluation Scheme:                                                                                                    

 

 

What

To who

m

When/Where (Frequency in the

course)

Max Marks

Evidence collected

Course outcomes

Direct Assessment

CIE

IA

 

 

Three IA tests (Average of three

tests will be computed)

 

20

 

Blue books

 

 

1,2,3,4,5,6

Student activities

05

Activities sheets

SEE

End

Exam

End of the course

100

Answer scripts

at BTE

1,2,3,4,5,6

Indirect Assessment

Student Feedback on

course

 

 

 

Middle of the course

 

 

Feedback forms

1,2,3 Delivery of course

 

End of Course

End of the course

 

 

1,2,3,4,5,6

 

Survey

 

 

Effectiveness of

 

 

 

Questionnaires

Delivery of

instructions &

 

 

 

 

Assessment

 

 

 

 

Methods

CIE- Continuous Internal Evaluation      SEE- Semester End Examination

Note: I.A. test shall be conducted for 20 marks. Average marks of three tests shall be rounded off to the next higher digit.

Note to IA verifier: The following documents to be verified by CIE verifier at the end of semester

1.       Blue books ( 20 marks)

2.       Student suggested activities report for 5 marks evaluated through appropriate rubrics.

3.       Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Methods


å    MODEL OF RUBRICS /CRITERIA FOR ASSESSING STUDENT ACTIVITY           RUBRICS MODEL

RUBRICS FOR ACTIVITY( 5 Marks)

 

Dimension

Unsatisfactory

Developing

Satisfactory

Good

Exemplary

Student Score

1

2

3

4

5

 

Collection of data

Does not collect any information relating to the topic

Collects very limited information;

some relate to the topic

Collect much information; but very

limited relate to the topic

Collects some basic information;

most refer to the topic

Collects a great deal of information;

all refer to the topic

Ex: 4

Fulfill team’s roles & duties

Does not perform any duties assigned to the team role

Performs very little duties but unreliable.

 

Performs very little duties

Performs nearly all duties

Performs all duties of assigned team roles

 

5

 

Shares work equally

 

Always relies on others to do the work

Rarely does the assigned work; often needs reminding

Usually does the assigned work; rarely needs reminding

 

Normally does the assigned work

Always does the assigned work without having to be reminded.

 

 

3

 

Listen to other Team mates

 

Is always talking; never allows anyone else to speak

Usually does most of the talking; rarely allows others to speak

Talks good; but never show interest in listening others

 

Listens, but sometimes talk too much

 

Listens and speaks a fair amount

 

 

2

Average / Total marks=(4+5+3+2)/4=14/4=3.5=4

 

Note: This is only an example. Appropriate rubrics/criteria may be devised by the concerned faculty (Course Coordinator) for assessing the given activity

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