Thermodynamics and Heat Transfer
 
 
Subject Code: EMP1016
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.
Programme Outcomes:
  • 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%)
Assessment Scheme:
  • 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%)
Teaching and Learning Activities: 54 hours (lectures,tutorials and laboratory experiment)
Credit Hours: 3
Pre-Requisite: EME1046 Principle of Thermodynamics
References:
  • 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.

Subject Contents

  • Availability Analysis

  • 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.
     
  • Refrigeration

  • The vapor compression plant. P-H and T-S diagrams. Properties of common refrigerants. Vacuum refrigeration. Ideal and non-ideal cycles.
     
  • Conduction

  • Introduction: Fourier’s law, Newton’s law of cooling, Stephen-Boltzmann law. Steady one-dimensional heat conduction. Electrical analogy for composite sections. Insulation. Fins.
     
  • Convection

  • Dimensional analysis for convection. Dimensionless parameters for convection correlations. Forced convection. Free convection. Qualitative explanation of convection by boundary layer.
     
  • Radiation

  • Blackbody and gray body. Kirchoff’s law. Emmisivity. Shape factors. Solar radiation.
     

Laboratory

1. Centrifugal Fan
2. Thermal Conduction