Course

Unit 1

UNIT–I: Introduction to Thermodynamic terms – System, Surroundings, Boundary, Thermodynamic Equilibrium, Properties, State, Process and Cycle, Energy Interactions – Heat and Work. Refrigeration: Mechanical Refrigeration and types – units of refrigeration –reversed Carnot cycle, COP, vapour compression cycle (only description and no problems); Definitions of dry, wet & dew point temperatures, specific humidity and relative humidity, Cooling and dehumidification, Layout of unit and central air conditioners. Working of summer and winter air-conditioning units. Modes and mechanisms of heat transfer – Basic laws of heat transfer – General discussion about applications of heat transfer.

Unit 2

UNIT–II: Basic principles of crystalline materials, classification of metallic materials, Mechanical properties – stress-strain curves for ductile and brittle alloys. Ductility – Resilience and toughness. Hardness testing. Classification of cast iron and steels – properties, microstructures and uses of cast irons, plain carbon, alloy, stainless, heat resistant steels. Composition, properties, microstructures and uses of non-ferrous alloys – brass, bronze, aluminium, nickel and zinc alloys. Heat treatment of steels: annealing, normalizing, hardening and tempering.– Introduction to metal cutting – Residual Stresses – Weldability of metals. Introduction to manufacturing of cold forming of steels -Cold form sections-.

Unit 3

Unit III LAB only demonstration

1. Performance study of Refrigeration
2. Performance study of Air conditioning
3. Microstructure study of Ferrous and Non-Ferrous alloys
4. . Effect of heat on hardened steel
5. Weldability study using ISO 17641 and 17642 Field visit to steel manufacturing/fabrication plant

Course Objective:

• Understand the fundamental concepts of thermodynamics and be able to define and apply the terms system, surroundings, boundary, thermodynamic equilibrium, properties, state, process, and cycle.
• Describe the principles of refrigeration, including mechanical refrigeration and the reversed Carnot cycle, and be able to calculate the coefficient of performance (COP) of a refrigeration system.
• Identify and define the various types of heat transfer, including conduction, convection, and radiation, and be able to apply the basic laws of heat transfer to practical applications.
• Understand the mechanical properties of metallic materials, including stress-strain curves, ductility, resilience, toughness, and hardness, and be able to classify metallic materials based on their properties and
• Applying the necessary heat treatment methods to steels and explaining the properties, microstructures, and uses of different kinds of ferrous and non-ferrous alloys, such as cast iron, steel, brass, bronze, aluminium, nickel, and zinc
• Gain exposure by observing the laboratory experiments, including the performance study of refrigeration and air conditioning systems, microstructure analysis of ferrous and non-ferrous alloys, and weldability testing using ISO 17641 and a field visit to the manufacturing or fabrication industry.

Course Outcome

CO01 Comprehend the significance of thermodynamics in the fields of engineering and technology. CO02 Apply the fundamental concepts and solve problems related to thermodynamics.

CO03 Distinguish the different types of heat transfer.

CO04 Identify metallic materials’ significance in diverse engineering and technology fields. CO05 Analyse and compare the properties of different types of ferrous and non-ferrous alloys. CO06 Develop practical skills by observing laboratory experiments and through a field visit.

CO- PO mapping

Text Book

1. Cengel A. & Boles M. A., “Thermodynamics – an Engineering Approach”, 8/e, Tata McGraw Hill, 2016
2. Callister W. D. – ‘Materials Science and Engineering’ – John Wiley & Sons – 2010 – 8 th Edition