1-introduction (class rules regulations)

HEAT TRANSFER(EP 315)

ANITA BT. ABU BAKAR / KOW KIEN WOHSCHOOL OF ENGINEERING

[email protected]

2Learning Outcomes (CLO)Upon the completion of this module, the student will be able to:

CLO1: Analyze heat conduction using Fouriers Law for steady and unsteady state conditions.(C4,PLO2)

CLO2: Analyze heat transfer with the concepts of natural and forced convection. (C4,PLO2)

CLO3: Analyze heat transfer with the concepts of radiation phenomena.(C4,PLO2)

CLO4: Explain the concept of boiling and condensation phenomena. (C5,PLO2)

CLO5: Integrate design equations for heat transfer equipment (pipe heat exchangers, shell-and-tube heat exchangers, evaporator and condenser). (C5,PLO3)

SynopsisThis course will emphasize on the principles of heat transfer by conduction, convection and radiation. It will further elaborate these concepts with theories and applications to the solutions of practically relevant chemical engineering problems. Topics include steady state and transient heat conduction, force and natural convection heat transfer, radiation exchange between black and grey surfaces, heat transfer for boiling and condensation and an introduction to design heat exchange equipment - heat exchanger, condenser and evaporators.

SYLLABUS

1. Introduction: Various modes of heat transfer. Conduction, Convection and Radiation

2. Conduction: Fouriers law, Steady state unidirectional heat flow through single and multiple layer slabs, Cylinders and spheres for constant and variable thermal conductivity. Elementary treatment of unsteady state heat conduction. Insulation

3. Extended Surfaces:Fins Types of fins, Derivation of fin efficiency for longitudinal fins, Fin effectiveness.

4. Convection: Individual and overall heat transfer coefficient, Empirical correlations for natural and force convective heat transfer, Forced convection mechanism: Flow over a flat horizontal plate, flow through a pipe or tube (Laminar, turbulant, Flow over a flat plate, Flow over cylinders and spheres), Momentum and heat transfer analogies (Reynolds analogy, The Chilton-Colburn analogy, The Prandtl analogy.

5. Heat Transfer With Phase Change: Boiling phenomena, Nucleate and film boiling, Condensation, Film and Drop wise condensation, Nusselts equations.

6. Radiation: Properties and definitions, Absorptivity, Reflectivity, Emissive power and intensity of radiation, Black body radiation, Gray body radiation, Stefen-Boltzmann law, Wiens displacement law, Kirchoffs law, View factors, Radiation between surfaces- different shapes, Radiation involving gases and vapors, Radiation shields.

7. Heat Transfer Equipment:Double pipe heat exchangers, Shell and tube heat exchangers, Types of shell and

tube heat exchangers, Condenser, Types of evaporators (Natural circulation evaporator, forced circulation evaporator, falling film evaporator), multiple effect evaporator.Double pipe heat exchangers, Shell and tube heat exchangers, Types of shell and tube heat exchangers, Condenser, types of condensers. Types of evaporators, Multiple effect evaporator.

8. Design of Heat Transfer Equipment: Elementary design of double pipe heat exchanger, shell and tube heat exchanger and condenser, construction details, Elementary design of evaporator- performance of tubular evaporator, evaporator capacity, evaporator economy, Multiple effect evaporator.

5REFERENCES

J.P. Holman, Heat Transfer, 10th Edition, McGraw-Hill, 2009

Frank P. Incropera and David P. DeWitt, Fundamentals of Heat and Mass Transfer, 6th Edition, John Wiley & Sons, Inc, 2007

Geankoplis, Transport Processes and Unit Operations, 4th

Edition, Upper Saddle River, NJ, Prentice Hall, 2003.

J.M. Coulson And J.F. Richardson, Chemical Engineering: Fluid Flow, Heat Transfer And Mass Transfer V.6 (Chemical Engineering), 1999

6LABORATORY (TUTOR - MS. SAHLIL MIRAZ)1. Fourier's Law study for

a) Linear conduction of heat along homogeneous bar.b) Conduction of heat and overall heat transfer along a composite bar.c) Effect of a change in cross-sectional area on the temperature profile along a

thermal conductor.

2. Demonstration of the relationship between power input & surface temperature in free and force

convection

3. The temperature profile and rate of heat transfer for radial conduction through the wall of

cylinder.(open-ended)

4. Shell and Tube Heat Exchanger

a) Parallel Flow

b) Counter Flow

c) Water Temperature Variation

d) Flow Rate Variation

5. Concentric Tube Heat Exchanger with Parallel Flow (Open-ended)a) Parallel Flowb) Counter Flowc) Water Temperature Variationd) Flow Rate Variation

Assessment & Grading

Type of Assessment

Assessment Methods

Percentage (%)

Written tests

Midterm

(week 7/8)

20

Test

(week 12/13)

20

Final examination(50% Ruling)

50

Lab experimentations Lab reports 10

Course Learning

Outcomes

(CLO)

Programme Learning Outcomes

(PLO)

1 2 3 4 5 6 7 8 9 10 11 12

CLO1: Analyze heat conduction using

Fouriers Law for steady and unsteady state

conditions. (C4,PLO2)

CLO2: Analyze heat transfer with the

concepts of natural and forced convection.

(C4,PLO2)

CLO3: Analyze heat transfer with the

concepts of radiation phenomena.

(C4,PLO2)

CLO4: Explain the concept of boiling and

condensation phenomena.

(C5,PLO2)

CLO5: Integrate design equations for heat

transfer equipment (pipe heat exchangers,

shell-and-tube heat exchangers, evaporator

and condenser).

(C5,PLO3)

Matrix CLO/PLO

TEACHING PLANWeek Date Topics Lecturer

15 Jan Orientation day Anita

7 Jan - Class policy/Introduction Anita

212 Jan - Course introduction: Modes of heat transfer Anita

14 Jan - Conduction Anita




28 Jan - Extended surface Anita

52 Feb Public holiday Wilayah Day Anita

4 Feb - Extended surface Anita

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9 Feb - Convection Anita


14 Feb (SATURDAY) (MIDTERM EXAM) 9.30-11.00am K206/K207 Anita & KKW



823 Feb - Heat transfer with phase change Anita

25 Feb - Heat transfer with phase change Anita

92 Mar - Radiation KKW




1116 Mar - Heat transfer equipment KKW


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28 Mar (SATURDAY) (TEST) 9.30 11.00am K206/K207 Anita & KKW

1330 Mar - Design of heat transfer equipment KKW

1 Apr - Design of heat transfer equipment KKW



FINAL EXAM

Consultation Hour

Ms. Anita Abu Bakar

Time Monday Tuesday Wednesday Thursday Friday Time

8:00am ~ 8:30am 8:00am ~ 8:30am

8:30am ~ 9:00am 8:30am ~ 9:00am

9:00am ~ 9:30am 9:00am ~ 9:30am

9:30am ~ 10:00am EG207/EP205 Thermo/Ther.for Chem.

Eng. (Consultation Hours)

FINAL YEAR PROJECT (Consultation Hours)

HYEP (JAN 15) ACADEMIC ADVISOR (Consultation Hours)

9:30am ~ 10:00am

10:00am ~ 10:30am 10:00am ~ 10:30am

10:30am ~ 11:00am 10:30am ~ 11:00am

11:00am ~ 11:30am EG207/EP 205 Thermodynamics/Ther

modynamics for Chemical Engineers

(Lecture)

EG207/EP 205 Thermodynamics/Thermodynamics for Chemical

Engineers (Lecture)

11:00am ~ 11:30am

11:30am ~ 12:00pm 11:30am ~ 12:00pm

12:00pm ~ 12:30pm 12:00pm ~ 12:30pm

12:30pm ~ 1:00pm 12:30pm ~ 1:00pm

1:00pm ~ 1:30pm 1:00pm ~ 1:30pm

1:30pm ~ 2:00pm 1:30pm ~ 2:00pm

2:00pm ~ 2:30pm EP315 Heat Transfer

(Consultation Hours) Ms Anita

2:00pm ~ 2:30pm

2:30pm ~ 3:00pmEP315

Heat Transfer (Consultation Hours) Mr. Kow

Kien Wo h

2:30pm ~ 3:00pm

3:00pm ~ 3:30pm 3:00pm ~ 3:30pm

3:30pm ~ 4:00pmEP315

Heat Transfer (Consultation Hours) Mr. Kow

Kien WO H

3:30pm ~ 4:00pm

4:00pm ~ 4:30pm 4:00pm ~ 4:30pm

4:30pm ~ 5:00pm 4:30pm ~ 5:00pm

5:00pm ~ 5:30pmEP 315

Heat Transfer (Lecture)

EP 315 Heat Transfer

(Lecture)

5:00pm ~ 5:30pm

5:30pm ~ 6:00pm 5:30pm ~ 6:00pm

6:00pm ~ 6:30pm 6:00pm ~ 6:30pm

6:30pm ~ 7:00pm 6:30pm ~ 7:00pm

LMS ACCESS CODE - EDU.20

ZFKG-WCKB

CLASS REGULATIONS Participate actively in-class discussions.

Punctuality: every student must observe punctuality in attendingthe classes throughout the semester (not more than 15 minutes late!!!)

Wearing proper attire to class.

Mobile phone switched to silent mode.

Ensure to sign the attendance sheet before leaving the class.

Official announcement / online forum: LMS

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ABSENTEEISM

Departments Policy on ABSENTEEISM.

Absenteeism is to be reported immediately to the lecturer.

Absenteeism may be acceptable on medical grounds and ifsupporting documents are presented to the lecturer.

Medical certificate (MC) or any supporting documents shall besubmitted to the lecturer within 5 calendar days inclusive of thelecture day.

Remark: from May 2014 semester onwards, do not accept MClater than the said date especially for unbarring purpose.

If students are unable to attend the test/midterm exam due to amedical condition, medical certificate must be submitted to thelecturer within 5 calendar days inclusive of the internal assessmentday. (Undergraduate Student Handbook, pg. 53)

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MEDICAL CERTIFICATE ISSUE

Medical certificates from private clinics and any time off slip are not acceptable for reasons of absenteeism in internal assessment.

ONLY medical certificate issued by doctor from either a government orprivate hospital, government clinic or from UCSI Universitys clinic are accepted for further decision in replacement of assessment.

Medical Attestation Report is also to be enclosed in this form along with the original Medical Certificate.

Statements of visiting time / time off slip will not be entertained.

Submission of forged and tampered medical certificates will be referred to the Disciplinary Board for further action.

1-introduction (class rules regulations)

Documents

heat transferep

tube heat exchangers

principles of heat transfer

transient heat conduction

double pipe heat exchangers

force convective heat

various modes of heat

types of shell