Air standard cycles-Otto-Diesel-Dual-Work output,Efficiency and MEP calculations –comparison of the cycles for same compression ratio and heat addition,same compression ratio and heat rejection,same peak pressure, peak temperature and heat rejection, same peak pressure and heat input,same peak pressure and work output , Brayton cycle with intercooling, reheating and regeneration.
RECIPROCATING AIR COMPRESSORS &REFRIGEREATION CYCLES
Single acting and double acting air compressors, work required, effect of clearance volume, volumetric efficiency, isothermal efficiency, free air delivery, multistage compression, condition for minimum work. Fundamentals of refrigeration, C.O.P., reversed carnot cycle, simple vapour compression refrigeration system, T-S, P-H diagrams, simple vapour absorption refrigeration system, desirable properties of an ideal refrigerant.
CONDUCTION
Basic Concepts – Mechanism of Heat Transfer – Conduction, Convection and Radiation – General Differential equation of Heat Conduction – Fourier Law of Conduction – Cartesian and Cylindrical Coordinates – One Dimensional Steady State Heat Conduction – Conduction through Plane Wall, Cylinders and Spherical systems – Composite Systems – Conduction with Internal Heat Generation – Extended Surfaces – Unsteady Heat Conduction – Lumped Analysis – Use of Heislers Chart.
CONVECTION
Basic Concepts – Convective Heat Transfer Coefficients – Boundary Layer Concept – Types of Convection – Forced Convection – Dimensional Analysis – External Flow – Flow over Plates, Cylinders and Spheres – Internal Flow – Laminar and Turbulent Flow – Combined Laminar and Turbulent – Flow over Bank of tubes – Free Convection – Dimensional Analysis – Flow over Vertical Plate, Horizontal Plate, Inclined Plate, Cylinders and Spheres.
RADIATION
Basic Concepts, Laws of Radiation – Stefan Boltzman Law, Kirchoff Law –Black Body Radiation –Grey body radiation Shape Factor Algebra – Electrical Analogy – Radiation Shields –Introduction to Gas Radiation.
1. P.K.Nag ”Basic and applied Thermodynamics” Tata McGraw –Hill Publishing
Co. Ltd,New Delhi,2004
2 P..K.Nag “ Heat Transfer”, Tata McGraw-Hill, New Delhi, 2002
3. C.P Kothandaraman “Fundamentals of Heat and Mass Transfer” New Age International, New Delhi, 1998.