Thermal Engineering-I

Thermal Engineering – I is a core subject in Mechanical Engineering that deals with heat energy, work, and energy conversion. It explains how heat energy is converted into mechanical power and how thermal systems operate in real engineering applications.

• Objectives of the Subject
  • Understand basic concepts of heat, work, and energy
  • Learn the laws of thermodynamics and their applications
  • Study the working of boilers, steam power plants, and engines
  • Develop a foundation for advanced thermal subjects
• Syllabus Overview / Main Units

1. Basics of Thermodynamics
   1. Thermodynamic system, surroundings, and universe
   2. Types of systems: Open, Closed, Isolated
   3. Thermodynamic properties:
      • Intensive properties
      • Extensive properties
   4. State, process, and cycle
2. Laws of Thermodynamics
   1. Zeroth Law – Concept of temperature
   2. First Law – Conservation of energy
   3. Second Law – Direction of heat flow and entropy
   4. Heat engine and refrigerator concepts
3. Steam and Boilers
   1. Steam and its properties
      • Dry steam
      • Wet steam
      • Superheated steam
   2. Use of steam tables (basic idea)
   3. Boilers:
      • Fire tube boiler
      • Water tube boiler
   4. Boiler mountings and accessories
4. Steam Power Plant
   1. Layout and working principle
   2. Main components:
      • Boiler
      • Steam turbine
      • Condenser
      • Feed pump
   3. Advantages and applications of steam power plants
5. Internal Combustion (I.C.) Engines
   1. Classification of I.C. engines
   2. Petrol engine vs Diesel engine
   3. Two-stroke and Four-stroke engines
   4. Main engine components
   5. Introduction to thermal efficienc

Importance of Thermal Engineering – I

• Forms the base for power engineering and automobile engineering
• Helps in understanding energy utilization and fuel efficiency
• Essential for higher studies like Thermal Engineering – II