Thermodynamics and Heat Transfer
|Aim of Subject:
||To introduce the students to the basic concepts and practical applications of thermodynamics and heat transfer with the solutions to thermal problems.
|Learning Outcome of Subject:
At the completion of the subject, students should be able to :
- Use property relations in ideal gas calculations.
- Apply availability analysis for a thermodynamics system.
- Analyze vapor power cycles with superheat, reheat and regeneration.
- Determine efficiency of gas power cycles.
- Solve transient conductive heat transfer problems using different models and available charts.
- Identify the differences between forced and free convection heat transfer.
- Determine the convection heat transfer coefficients by means of dimensionless parameters, e.g., Nusselt, Reynolds, Prandtl, etc.
- Recognize blackbody, nonblackbody and gray body radiations.
- Calculate the radiation shape factor and net heat transfer between radiating bodies.
- Ability to acquire and apply fundamental principles of science and engineering(60%)
- Capability to communicate effectively(10%)
- Acquisition of technical competence in specialised areas of engineering discipline(10%)
- Ability to identify, formulate and model problems and find engineering solutions based on a systems approach(10%)
- Ability to work effectively as an individual, and as a member/leader in a team(10%)
- Lab Experiments - Work in groups, lab report writing, oral assessment at the end of lab (10%)
- Tutorial / Assignment - group assignment,focus group discussion at tutorial,to enhance understanding of basic concepts in lecture (15%)
- Test Quiz - written exam (15%)
- Final Exam - written exam (60%)
||54 hours (lectures,tutorials and laboratory experiment)
||EME1046 Principle of Thermodynamics
- W.Z. Black and J.G. Hartley, "Thermodynamics, English/SI Version", 3rd Edition, Prentice Hall, 1996.
- Y.A. Cengel and M.A. Boles, "Thermodynamics: An Engineering Approach", 3rd Edition, McGraw-Hill, 1998.
- V.S. Arpaci, S.H. Kao and A. Selamet, “Introduction to Heat Transfer”, Prentice-Hall, 2000.
- J.P. Holman, “Heat Transfer”, 8th Edition, McGraw-Hill, 1997.
Irreversibility and availability. Exergetic efficiency
Vapour Power Cycles
Carnot and Rankine cycles with superheat, reheat and regeneration. Steam boilers, economisers and air preheaters. Back pressure and extraction turbines.
Gas Power Cycles
Gas turbine. Petrol and diesel engine cycles.
The vapor compression plant. P-H and T-S diagrams. Properties of common refrigerants. Vacuum refrigeration. Ideal and non-ideal cycles.
Introduction: Fourier’s law, Newton’s law of cooling, Stephen-Boltzmann law. Steady one-dimensional heat conduction. Electrical analogy for composite sections. Insulation. Fins.
Dimensional analysis for convection. Dimensionless parameters for convection correlations. Forced convection. Free convection. Qualitative explanation of convection by boundary layer.
Blackbody and gray body. Kirchoff’s law. Emmisivity. Shape factors. Solar radiation.
1. Centrifugal Fan
2. Thermal Conduction