# ME2301-NOL - THERMAL ENGINEERING THERMAL ENGINEEIRNG...

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THERMAL ENGINEEIRNG THERMAL ENGINEERING PAGE 1 OF 118 N.Venkatesan

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Sub Code: Page 2 of 118 CONTENTS Unit-I : Gas Power Cycles The Otto Cycle Diesel Cycle The Dual Cycle The Brayton Cycle Actual PV diagram of four stroke engine Theoretical PV diagram for four stroke engine Theoretical and Actual PV diagram of Two stroke Petrol Engine Sample Problems Unit-II: Internal combustion Engines Classification of IC engine Components of I.C engine Theoretical valve timing diagram of four stroke engine Actual valve timing diagram of four stroke engine Theoretical port timing diagram of two stroke engine Comparison of two stroke and four stroke engine Comparison of petrol and diesel engine Simple Carburetor Diesel Pump and Injector system Diesel knocking and detonation Ignition System Lubrication System Cooling System Performance Calculation Emission Formation Mechanisms (S.I) Emission Formation in C.I. Engine Sample Problem N.Venkatesan ME2301
Sub Code: Page 3 of 118 Unit-III: Steam Nozzles and Turbines Flow of steam through nozzles Continuity and steady flow energy equations Types of Nozzles Supersaturated flow or Metastable flow in Nozzles Critical Pressure Ratio Effect of Friction on Nozzles Velocity of steam at nozzle exit Mass of steam discharged through a nozzle Condition for maximum discharge through nozzle Values for maximum discharge Steam turbines Impulse and Reaction Turbines Compounding of impulse turbine Velocity diagram of an impulse turbine Velocity diagram of the velocity compounded turbines Reaction Turbine Governing of Steam Turbine Sample Problems on Steam Nozzle Sample problems on Steam Turbine Unit-IV: Air Compressors Classification of compressors Positive Displacement compressors Non-Positive displacement compressors or Dynamic compressor Multistage Compression Work done in a single stage reciprocating compressor without clearance volume Work done in a single stage reciprocating compressor with clearance volume Volumetric Efficiency N.Venkatesan ME2301

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Sub Code: Page 4 of 118 Mathematical analysis of multistage compressor is done with following assumptions Minimum work required in two stage compressor Sample Problems Unit-V:Refrigeration and Air-Conditioning System Vapour Compression Refrigeration Cycle Sub cooling or Under cooling Super Heating Refrigerant Properties of Refrigerants Ton of refrigeration Ammonia Water vapour absorption refrigeration system Lithium Bromide-Water vapour absorption refrigeration system Comparison between vapour compression and vapour absorption systems Psychrometry Psychrometric Chart Psychrometric Processes Cooling Load Calculation Concepts of GSHF, RSHF, ESHF Types of Air- Conditioning System Sample Problems N.Venkatesan ME2301
Sub Code: Page 5 of 118 UNIT

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