Elements of Mechanical Engineering for BE VTU Course 18 OBE & CBCS (I/II- Common - 18ME25) (Decode)

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MODULE-1 Sources of Energy : Introduction and application of energy sources like fossil fuels. hydel. solar. wind. nuclear fuels and bio-fuels: environmental issues like global warming and ozone depletion. Basic Concepts of Thermodynamics: Introduction, states, concept of work, heat, temperature: Zeroth, ιst, 2nd and3rd Iaws of thermodynamics. Concept of internal energy, enthalpy and entropy (simple numericals ). Steam: Formation of steam and thermodynamic properties of steam (simple numericals). (Chapters - ι, 2) MODULE-11 Boilers: Introduction to boilers, classification, Lancashire boiler, Babcock and Wilcox boiler. Introduction to boiler mountings and accessories (ηο sketches). Turbines : Hydraulic Turbines-Classification and specification, Principles and operation of Pelton wheel turbine. Francis turbine and Kaplan turbine (elementary treatment only). Hydraulic Pumps : lntroduction, classification and specification of pumps, reciprocating pump and centrifugal pump, concept of cavitation and priming. (Chapter - 3) MODULE-111 Internal Combustion Engines : Classification, I.C. Engines parts, 2 and 4 stroke petrol and 4-stroke diesel engines. P-V diagrams of Otto and Diesel cycles. Simple problems οη indicated power. brake power. indicated thermal efficiency, brake thermal efficiency, mechanical efficiency and specific fuel consumption. Refrigeration and Air Conditioning: Refrigeration - Definitions - Refrigerating effect, Τοη of Refrigeration. Ice making capacity, COP, relative COP, Unit of Refrigeration. Refrigerants, Properties of refrigerants, List of commonly used refrigerants. Principle and working of vapor compression refrigeration and vapor absorption refrigeration. Domestic refrigerator. Principles and applications of air conditioners, window and split air conditioners. (Chapters - 4, 5) MODULE-IV Properties, Composition and Industrial Applications of Engineering Materials Metals- Ferrous : Cast iron, tool steels and stainless steels and nonferrous : Aluminum, brass, bronze. Polymers - Thermoplastics and thermosetting polymers. Ceramics - Glass, optical flber glass, Cermets. Composites - Fiber reinforced composites. Metal Matrix Composites Smart materials - Piezoelectric materials, shape memory alloys, semiconductors and insulators. Joining Processes : Soldering, Brazing and Welding Definitions, Classification and methods of soldering, brazing and welding. Brief description of arc welding, oxy-acetylene welding, TIG welding and MIG welding. Belt drives: Open & crossed belt drives. Definitions -slip. creep, velocity ratio. derivations for Iength of belt ίη open and crossed belt drive. ratio of tension ίη flat belt drives, advantages and disadvantages of Ί7 belts and timing belts, simple numerical problems. Gear Drives : Types-spur, helical, bevel, worm and rack and pinion. Velocity ratio, advantages and disadvantages over belt drives, simple numerical problems οη velocity ratio. (Chapters - 6, 7, 8, 9)

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Author: [Anup Goel] Pages: 186 Edition: 2020 Vendors: Technical Publications