Mechanical Systems of Engineering / Basics of Mechanical Engineering / Elements of Mechanical Engineering is the subject designed for First year year Engineering students. This is to enable all engineering students to get acquainted with the subject and also to get clear ideas of the mechanical devices / appliances which come across in real life. The course consists of Theoretical as well as numerical part. Numericals are incorporated as per syllabus structure so it is very beneficial for beginners to get an idea about method / approach to solve the same. The data required for preparation of the subject takes more time as to search through various books and web sites. The course hence designed with the requirement of the students so that they can save lot of time and also gain confidence to get through the subject with good score.
The course is divided into six units as below:
Unit-I : Introduction to Energy sources and its Energy Conversions
Unit-II : Introduction to Thermal Engineering
Unit-III : Introduction to Vehicles / Automobile Engineering and their Specifications
Unit-IV : Various Systems of Vehicle / Automobile
Unit-V : Introduction to Manufacturing Processes
Unit-VI : Engineering Mechanisms and their application in Domestic appliances
Unit I Introduction of energy sources & its conversion
Energy sources: Thermal energy, Hydropower energy, Nuclear energy, Solar energy, Geothermal energy, Wind energy, Hydrogen energy, Biomass energy and Tidal energy. Grades of Energy. (Numerical on efficiency calculation of thermal power plant )
Energy conversion devices: Introduction of pump, compressor, turbines, wind mills etc (Simple numerical on power and efficiency calculations)
Unit II Introduction to Thermal Engineering
Laws of thermodynamics, heat engine, heat pump, refrigerator (simple numerical) Modes of heat transfer: conduction, convection and radiation, Fourier’s law, Newton’s law of cooling, Stefan Boltzmann’s law. (Simple numerical) Two stroke and Four stroke engines (Petrol, Diesel and CNG engines). Steam generators.
Unit III Vehicles and their Specifications
Classification of automobile. Vehicle specifications of two/three wheeler, light motor vehicles, trucks, buses and multi-axle vehicles. Engine components (Introduction). Study of engine specifications, comparison of specifications of vehicles. Introduction of Electric and Hybrid Vehicles. Cost analysis of the Vehicle.
Unit IV Vehicle systems
Introduction of chassis layouts, steering system, suspension system, braking system, cooling system and fuel injection system and fuel supply system. Study of Electric and Hybrid Vehicle systems. Study of power transmission system, clutch, gear box (Simple Numerical), propeller shaft, universal joint, differential gearbox and axles. Vehicle active and passive safety arrangements: seat, seat belts, airbags and antilock brake system.
Unit V Introduction to Manufacturing
Conventional Manufacturing Processes: Casting, Forging, Metal forming (Drawing, Extrusion, etc.), Sheet metal working, Metal joining, etc. Metal cutting processes and machining operations- Turning, Milling and Drilling, etc. Micromachining. Additive manufacturing and 3D Printing. Reconfigurable manufacturing system and IOT, Basic CNC programming: Concept of Computer Numerical Controlled machines.
Unit VI Engineering Mechanisms and their application in Domestic Appliances
Introduction to Basic mechanisms and equipment: Pumps, blowers, compressors, springs, gears, Belt-Pulley, Chain-Sprocket, valves, levers, etc. Introduction to terms: Specifications, Input, output, efficiency, etc.
Applications of: Compressors - Refrigerator, Water cooler, Split AC unit; Pumps - Water pump for overhead tanks, Water filter/Purifier units; Blower - Vacuum cleaner, Kitchen Chimney; Motor - Fans, Exhaust fans, Washing machines; Springs - Door closure, door locks, etc.; Gears - Wall clocks, watches, Printers, etc.; Application of Belt-Pulley/Chain-Sprocket - Photocopier, bicycle, etc.; Valves - Water tap, etc.; Application of levers - Door latch, Brake pedals, etc.; Electric/Solar energy - Geyser, Water heater, Electric iron, etc. (simple numerical on efficiency calculation )
