# Applied Thermal and Hydraulic Engineering - [2140907]

#### Teaching Scheme

 Theory Tutorial Practical Total 3 0 0 3

#### Examination Scheme

 Theory Examination Practical Examination Total ESE (E) PA (M) ESE Viva (V) PA (I) 70 30 - - 100

ESE = End Semester Examination, PA = Progressive Assessment

#### Engineering application of thermodynamics

Steam power cycle-Rankine cycle, thermal efficiency, methods of improvement of thermal efficiency -regenerative and reheat. Mollier diagram. Gas turbine cycle- thermal efficiency, Brayton cycle, methods of improvement of thermal efficiency -regenerative, intercooler and reheat. Refrigeration-vapour compression refrigeration system, air cycle refrigeration system -bell column cycle, simple air craft refrigeration system-psychometric chart. (Simple numerical problems).

#### Modes of Heat Transfer

Fourier Law of Conduction and Thermal Conductivity, Conduction of Heat Through A Slab, Conduction of Heat transfer through Hollow Cylinder, Convection and Heat Transfer Coefficient, Natural and Forced Convection, Combined Conduction and Convection Heat Transfer, concept of thermal resistance. Critical thickness of insulation. Fins and their application. Heat Through composite wall and cylinder. Introduction to Radiation Heat Transfer, Concept of Black Body, Monochromatic and Total Emissive Power, Concept of Gray Body and Emissivity, Kirchhoff’s Law, Heat Exchangers, LMTD, Overall Heat Transfer Coefficient, parallel and counter flow heat exchangers. (Simple numerical problems).

#### Fluid Mechanics

Fluid properties density, viscosity, surface tension and capillarity Newton’s Law of viscosity, Absolute and gauge pressure. Manometers, Bourdon tube pressure gauge. Pressure exerted by a liquid column. Simple numerical problems. Fluid dynamics Continuity equation, one dimensional flow along a streamline - Euler’s momentum equation, Bernoulli’s equation. Flow measuring instruments-Venturimeter, orifice meter, nozzle meter, notches and weirs, Pitot tubes (simple numerical problems).

#### Main Parts of a Centrifugal Pump

Work Done by the Centrifugal Pump (or by Impeller) on Water, Definitions of Heads arid Efficiencies of a Centrifugal Pump, velocity diagram, Multistage Centrifugal Pumps,Specific Speed of a Centrifugal Pump, Priming of a Centrifugal Pump, Characteristic Curves of Centrifugal Pumps, Cavitation, Maximum Suction Lift (or Suction Height), Net Positive Suction Head (NPSH): Positive displacement pumps- Reciprocating pumps: main parts, discharge work done and power required to drive a slip in a reciprocating pump simple(simple problems only), Turbines: Definitions of Heads and Efficiencies of a Turbine, Classification of Hydraulic Turbines, Pelton Wheel: main parts, Velocity Triangles and Work Done for Pelton Wheel, Radial Flow Reaction Turbines-Francis turbine: main parts, Velocity Triangles and Work Done by water on runner, Degree of Reactions, draft tube, specific speed, Characteristic Curves (simple problems only).