## ME6404 Thermal Engineering

Subject Informations :

University        :  Anna University
Department     :  B.E. MECHANICAL ENGINEERING
Semester          :  04 th sem
Year                  :  02 th year
Regulation       :  R2013
Subject Code   :  ME6404
Subject Name  :  Thermal Engineering

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ME6404 Thermal Engineering  | Impotent  Questions

ME6404 THERMAL ENGINEERING – SYLLABUS – 2013

OBJECTIVES:

• To integrate the concepts, laws and methodologies from the first course in thermodynamics
into analysis of cyclic processes
• To apply the thermodynamic concepts into various thermal application like IC engines, Steam
Turbines, Compressors and Refrigeration and Air conditioning systems
(Use of standard refrigerant property data book, Steam Tables, Mollier diagram and Psychrometric
chart permitted)

UNIT I GAS POWER CYCLES

Otto, Diesel, Dual, Brayton cycles, Calculation of mean effective pressure, and air standard efficiency
– Comparison of cycles.

UNIT II INTERNAL COMBUSTION ENGINES

Classification – Components and their function. Valve timing diagram and port timing diagram – actual and theoretical p-V diagram of four stroke and two stroke engines. Simple and complete Carburettor. MPFI, Diesel pump and injector system. Battery and Magneto Ignition System – Principles of Combustion and knocking in SI and CI Engines. Lubrication and Cooling systems. Performance calculation.

UNIT III STEAM NOZZLES AND TURBINES

Flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio,
supersaturated flow. Impulse and Reaction principles, compounding, velocity diagram for simple and
multi-stage turbines, speed regulations –Governors.

UNIT IV AIR COMPRESSOR

Classification and working principle of various types of compressors, work of compression with and
without clearance, Volumetric efficiency, Isothermal efficiency and Isentropic efficiency of
reciprocating compressors, Multistage air compressor and inter cooling –work of multistage air
compressor

UNIT V REFRIGERATION AND AIR CONDITIONING

Refrigerants – Vapour compression refrigeration cycle- super heat, sub cooling – Performance
calculations – working principle of vapour absorption system, Ammonia –Water, Lithium bromide – water systems (Description only) . Air conditioning system – Processes, Types and Working
Principles. – Concept of RSHF, GSHF, ESHF- Cooling Load calculations.

TOTAL: 45 PERIODS

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