Home Page -1 - ME Subjects - Concepts Simplified
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keywords: description:(adsbygoogle = window.adsbygoogle || []).push({}); M E Subjects – Mechanical Engineering Concepts Simplified Vario ME Subjects Concepts Simplified Home Page -1Strengths of MaterialsMCQRefrigerationThermodynamicsShort Question AnswersEngineering DrawingInternal and External EnginesPrivacy PolicyTheory of MachinesAbout usContact us Home Page -1 M E Subjects Mechanical Engineering Concepts SimplifiedVarious topics of Mechanical Engineering presented here are in a simple manner. Following courses are easily understandable. It is because of our vast teaching experience. Anybody can make things complex. It is really very difficult to make things/topics simple. Such an attempt makes every article simple to read, simple to understand and simple to reproduce. Matter is from the literature. Our effort makes it as simple as possible. Matter is in small simple sentences.Strength of MaterialsHeat TransferRefrigeration and Air ConditioningThermodynamicsFluid MechanicsTheory of MachinesMechanical VibrationsInternal and External EnginesEngineering DrawingManufacturingMultiple Choice Questions on each main as well as sub topicsStrength of Materials Load, Force, Weight, Types of Loads, Stress, Strain, Unit Stress, Unit Strain. Modulus, Simple and Composite Bodies, Elastic Properties, Stiffness. Poissons Ratio, Elastic Constants, Relation between Elastic Constants. Plastic Properties, Yield Strength, Ultimate Strength, Breaking Strength.Gradually Applied Load, Suddenly Applied Load, Impact LoadDuctile materials, Brittle Materials, Ductility, Malleability, Hardness, Strain Energy, ToughnessPoint Load, Uniformly Distributed LoadThermal Stress, Thermal StrainComplex Stresses, Principal Stresses, Principal Strains, Principal Planes, Maximum Shear Stress, Planes of Maximum Shear Stress, Angle of ObliquityShear Force Diagram, Bending Moment Diagram, Point of contra-flexureType of beams bending stress, bending strain in simple and composite beams, moment of inertia, section modulus, Moment of ResistanceCombined Bending and Axial Loading, Middle Third Rule, Middle Quarter RuleShear stresses in a beamSlope and DeflectionTorsion: Stresses/ strains/ strain energy in circular shafts under Torsion/ (Torsion + bending Moment)/ (under Torque+ Bending Moment+ Axial Thrust)SPRINGS: Stress/ deflection/ stiffness/ strain energy in Laminated/ Close coiled/ Open coiled springsCOLUMNS AND STRUTS: Stresses/ strains in Short, Medium and Long Columns. Slenderness Ratio, Buckling of a column, Equivalent length. Rankine formula, Euler formula, Eccentric loading, Eccentricity. Thin and Thick Walled Pressure Vessels (Cylindrical and Spherical)Strain Energy in Tension/ Compression/ Bending/ TorsionSTIFFNESS: Tension stiffness/ compression stiffness/ bending stiffness/ torsion stiffness ,spring stiffnessHeat Transfer Difference between heat transfer and thermodynamics, Modes of heat Transfer (Conduction, Convection and Radiation )Fourier Law of Conduction(in Rectangular, Cylindrical and Spherical Coordinates)Newton’s Law of ConvectionStefan’s- Boltzmann Law of RadiationConductive Heat Transfer Coefficient (Thermal Conductivity), Convective Heat Transfer Coefficient, Radiation Heat Transfer Coefficient, Overall Heat Transfer CoefficientPractical Applications of Conduction, Convection, RadiationThermal Resistance in Conduction, Convection, RadiationFins and Heat Exchangers: Types of fins and Heat Exchangers, Parallel and Counter-flow Heat ExchangersLaws of Radiation, Absorptivity, Reflectivity and Transmissivity. Surface Resistance, Space Resistance, Radiation Shape Factors, Shape Factor Algebra. Radiation Exchange between black and real bodies, Radiation Shields.Refrigeration and Air Conditioning Definition of Refrigeration, Air-Conditioning and Cryogenics, Methods of Refrigeration, Air- Conditioning and Cryogenics, Practical Applications of refrigeration, Air-Conditioning and CryogenicsCarnot and Reverse Carnot Cycle, Gas Refrigeration Cycle, Reverse Rankine Cycle. Cooling Effect, Heating Effect, Cooling Capacity, Heating Capacity. Work input, Coefficient of Performance.Pressure Enthalpy Chart, Temperature-Entropy Chart, Vapor Compression Refrigeration Cycle, Vapor Absorption Cycle, Gas Refrigeration Cycle and its Types, Rate of Refrigerant Flow, Quality of Refrigerant After The Expansion Valve, Volumetric EfficiencySteam-Jet Refrigeration, Multi-compressor- Multi-Evaporator Refrigeration, Thermo-electric Refrigeration, Magnetic coolingLiquefaction of Air, Oxygen, Nitrogen, Hydrogen and HeliumRefrigerants (Primary, Secondary, Tertiary, Organic, inorganic and Azeotrope) , Types of RefrigerantsCompressors, Condensers, Expansion Devices, Evaporators. Pipes, Desiccants, Anti-freezes, Lubricating Oils, Liquid Suction Heat-Exchanger. Accumulator, Oil Separator, Receiver, Solenoid Valve and Defrosting.Refrigerant and Air –Conditioning Controls-Capillary Tube, Automatic Expansion Valve. Thermostatic Expansion Valve, Low side Float Valve, High Side Float Valve. Thermostat, Low and High Pressure cut-outs and Cut-ins. Low and High Voltage Cut-outs and Cut-ins.Thermodynamics Definition, Applications of Thermodynamics-Nozzles, Compressors. Heat Engine, Window Air Conditioner, Refrigeration and Air-Conditioning Plant. Pump, Turbines, Laws of Thermodynamics. Entropy, Enthalpy and Internal Energy. Reversible and irreversible processes, Free Expansion Process, Throttling Process. Iso-thermal Process, Isobaric Process, Isen-tropic Process. Isenthalpic Process, Isometric Process, Adiabatic Process, Poly-tropic Process. Thermodynamic Cycles-Carnot Cycle, Rankine Cycle, Joule Cycle. Auto Cycle, Diesel Cycle and Dual Cycle. Steam Turbine, Gas turbine and Water Turbine.Fluid Mechanics--Introduction, Pressure measurement. Hydro static forces on Submerged Surfaces, Buoyancy. Fluid Kinematics, Fluid Dynamics, Dimensional Analysis. Laminar Flow, Turbulent Flow, Boundary Layer Theory. Flow Through pipes, Compressible Flow.Theory of Machines Elements, Pair, Lower and upper pairs. Mechanism, Types of mechanisms, Inversion of a mechanism. Degrees of freedom, Power transmission, Belt drive, Chain Drive and gear drive. Flywheel, Governor, Balancing.Mechanical vibrations- Introduction, Degrees of freedom, Free vibrations, Forced vibrations.Engineering Drawing- Introduction, Letter writing, Dimensioning, Scales used in drawing. Projection of points, lines, planes, solids, section of solids. Isometric projections, Orthographic projections, MCQ on various topics.INTERNAL AND EXTERNAL ENGINES Definition of a engine, Types of Engines, Parts of an Engine. Comparison between two and four stroke engines, Comparison between SI and CI engines. Fuels used in IC engines, Octane and Cetane Numbers, Detonation / knocking.MULTIPLE CHOICE QUESTIONS ThermodynamicStrength of materialsTheory of machinesRefrigeration
Manufacturing
Internal and external engines
Fluid mechanics
Heat Transfer
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