Unit 2112: Fundamentals and Applications of Thermodynamics

1. Introduction to Thermodynamics

• Definition and scope of thermodynamics
• Thermodynamic systems: open, closed, isolated
• Properties of matter: pressure, temperature, volume, internal energy
• The significance of thermodynamics in engineering and science
• Overview of the laws of thermodynamics

2. Heat and Temperature

• Distinction between heat and temperature
• Temperature scales: Celsius, Fahrenheit, Kelvin
• Measurement of temperature
• Heat energy: definition and units
• Modes of heat transfer overview
• Effect of temperature on the behavior and properties of matter

3. Heat Transfer Mechanisms

• Conduction
  • Definition and physical explanation
  • Fourier’s law of heat conduction
  • Examples and applications
• Convection
  • Natural vs forced convection
  • Newton’s law of cooling
  • Practical examples
• Radiation
  • Blackbody radiation and emissivity
  • Stefan-Boltzmann law
  • Real-world applications

4. The First Law of Thermodynamics

• Statement of the first law (energy conservation)
• Internal energy, work, and heat interactions
• Mathematical formulation: ΔU = Q - W
• Application to closed and open systems
• Examples: piston-cylinder devices, steady-flow systems

5. The Second Law of Thermodynamics

• Concept of entropy and its physical meaning
• Irreversibility and spontaneous processes
• Formulations of the second law (Kelvin-Planck and Clausius statements)
• Implications for energy conversion and efficiency
• Introduction to entropy changes in system and surroundings

6. Thermodynamic Cycles

• Definition and importance of thermodynamic cycles
• Carnot cycle
  • Description and stages
  • Efficiency and significance
• Rankine cycle
  • Components and operation
  • Application in power plants
• Refrigeration cycles
  • Vapor-compression cycle
  • Coefficient of performance (COP)
• Comparative analysis of cycle efficiencies

7. Heat Exchangers

• Purpose and applications of heat exchangers
• Types of heat exchangers: shell and tube, plate, finned tube
• Heat transfer coefficients and overall heat transfer rate
• Effectiveness and NTU method
• Design considerations and industrial applications

8. Thermal Comfort and Human Thermoregulation

• Definition of thermal comfort
• Factors affecting thermal comfort: temperature, humidity, airflow, clothing
• Physiological mechanisms of human thermoregulation
• Thermal sensation and adaptive models
• Design considerations for HVAC systems and indoor environments

9. Applications of Thermodynamics in Engineering

• Mechanical engineering: engines, turbines, HVAC systems
• Chemical engineering: reactors, separation processes
• Aerospace engineering: propulsion systems, thermal protection
• Case studies showcasing practical implementations
• Emerging trends and technologies in thermodynamics