Thermal Engineering 2
ME8595 THERMAL ENGINEERING – II
UNIT I STEAM NOZZLE
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 II BOILERS
Types and comparison. Mountings and Accessories. Fuels - Solid,
Liquid and Gas. Performance calculations, Boiler trial.
UNIT III STEAM TURBINES
Types, Impulse and reaction principles, Velocity diagrams, Work
done and efficiency – optimal operating conditions. Multi-staging, compounding
and governing.
UNIT IV COGENERATION AND RESIDUAL HEAT RECOVERY
Cogeneration Principles, Cycle Analysis, Applications, Source and
utilisation of residual heat. Heat pipes, Heat pumps, Recuperative and
Regenerative heat exchangers. Economic Aspects.
UNIT V REFRIGERATION AND AIR – CONDITIONING
Vapour compression refrigeration cycle, Effect of Superheat and
Sub-cooling, Performance calculations, Working principle of air cycle, vapour
absorption system, and Thermoelectric refrigeration. Air conditioning systems,
concept of RSHF, GSHF and ESHF, Cooling load calculations. Cooling towers –
concept and types.
