Thermal Engineering

350 210

Regulation 2021

ISBN978-93-93808-16-5

UNIT I       THERMODYNAMIC CYCLES 

Air Standard Cycles – Carnot, Otto, Diesel, Dual, Brayton – Cycle Analysis, Performance and Comparison, Basic Rankine Cycle, modified, reheat and regenerative cycles.

UNIT II     STEAM NOZZLES AND INJECTOR

Types and Shapes of nozzles, Flow of steam through nozzles, Critical pressure ratio, Variation of mass flow rate with pressure ratio. Effect of friction. Metastable flow.

UNIT III    STEAM AND GAS TURBINES 

Types, Impulse and reaction principles, Velocity diagrams, Work done and efficiency – optimal operating conditions. Multi-staging, compounding and governing. Gas turbine cycle analysis – open and closed cycle. Performance and its improvement – Regenerative, Intercooled, Reheated cycles and their combination. EnggTree.com Downloaded from EnggTree.com

UNIT IV    INTERNAL COMBUSTION ENGINES – FEATURES AND COMBUSTION

IC engine – Classification, working, components and their functions. Ideal and actual : Valve and port timing diagrams, p-v diagrams- two stroke & four stroke, and SI & CI engines – comparison. Geometric, operating, and performance comparison of SI and CI engines. Desirable properties and qualities of fuels. Air-fuel ratio calculation – lean and rich mixtures. Combustion in SI & CI Engines – Knocking – phenomena and control.

UNIT V   INTERNAL COMBUSTION ENGINE PERFORMANCE AND AUXILIARY SYSTEMS 

Performance and Emission Testing, Performance parameters and calculations. Morse and Heat Balance tests. Multipoint Fuel Injection system and Common rail direct injection systems. Ignition systems – Magneto, Battery and Electronic. Lubrication and Cooling systems. Concepts of Supercharging and Turbocharging – Emission Norms

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350 210