Applied Thermodynamics and Heat Transfer
Course Objectives:
To familiarize the students to understand the applied thermodynamics and heat transfer. (Use of Standard and approved Steam Table, Mollier Chart, Compressibility Chart and Psychrometric Chart permitted)
- Gas Power Cycle (10 hours)
- Air standard cycles-Otto-Diesel-Dual-Work output,
- Efficiency and MEP calculations
- Comparison of the cycles for same compression ratio and heat addition
- Same compression ratio and heat rejection, same peak pressure
- Peak temperature and heat rejection
- Same peak pressure and heat input
- Same peak pressure and work output
- Brayton cycle
- Reciprocating Air-compressor and Refrigeration Cycles (10 hours)
- Single acting and double acting air compressors
- Work required
- Effect of clearance volume
- Efficiencies
- Volumetric efficiency
- Isothermal efficiency
- Free air delivery
- Fundamentals of refrigeration and C.O.P.
- Reversed carnot cycle
- Simple vapour compression refrigeration system
- T-S, P-H diagrams,
- Simple vapour absorption refrigeration system,
- Desirable properties of an ideal refrigerant
- Conduction (10 hours)
- Basic Concepts
- Mechanism of Heat Transfer
- Conduction,
- Convection and
- Radiation
- General Differential equation of Heat Conduction
- Fourier Law of Conduction – Cartesian
- One Dimensional Steady State Heat Conduction
- Conduction through Plane Wall, Cylinders and Spherical systems
- Composite Systems
- Conduction with Internal Heat Generation
- Extended Surfaces
- Unsteady Heat Conduction
- Lumped Analysis
- Use of Heislers Chart.
- Convection (10 hours)
- Basic Concepts
- Convective Heat Transfer Coefficients
- Boundary Layer Concept
- Forced Convection
- Dimensional Analysis
- External Flow
- Flow over Plates,
- Cylinders and
- Spheres
- Internal Flow
- Laminar and Turbulent Flow
- Flow over Bank of tubes
- Free Convection
- Dimensional Analysis –
- Flow over Vertical Plate.
- Radiation (5 hours)
- Basic Concepts, Laws of Radiation
- Stefan Boltzman Law
- Kirchoff Law
- Black Body Radiation
- Grey body radiation
- Shape Factor Algebra
- Electrical Analogy
- Radiation Shields
- Introduction to Gas Radiation
Practical:
Lab 1 Conduction Heat Transfer
Verification of Conduction Laws
Drawing of Temperature Profile
Comparison between Thermal Conductivities of Different Types of Materials
Lab 2 Convection Heat Transfer
Free Convection from Different Types of Plates Force Convection from Different Types of Plates
Lab 3 Radiation Heat Transfer
Relationship between Temperature, Frequency and Wavelength Reflectivity, Absorptivity and Transmissivity
Lab 4 Boiling Heat Transfer
Mass and Energy Balances Efficiency
Effects of Mixture on Boiling Heat Transfer
Lab 5 Heat Exchanger
Energy Balance of Different Types of Heat Exchangers
Drawing of Temperature Profiles of Different Types of Heat Exchangers Effectiveness of Different Types of Heat Exchangers
Lab 6 Fins
Drawing of Temperature Profiles of Different Types of Fins Heat Dissipation from Different Types of Fins
References:
- Holman. J.P. “Heat Transfer”, Tata McGraw –Hill, 2003
- Nag. P.K. ”Basic and applied Thermodynamics” Tata McGraw–Hill Publishing Co. Ltd, New Delhi, 2004
- Nag. P..K. “ Heat Transfer”, Tata McGraw-Hill, New Delhi, 2002
Evaluation Scheme:
There will be questions covering all the chapters in the syllabus. The evaluation scheme for the question will be as indicated in the table below:
Unit |
Chapter |
Topics |
Marks |
1 |
1 |
All |
16 |
2 |
2 |
All |
18 |
3 |
3 |
All |
18 |
4 |
4 |
All |
18 |
5 |
5 |
All |
10 |
Total |
80 |
*Note: There may be minor deviation in marks distribution.
|