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Classification of system - Thermodynamics:
(1) Kitchen refrigerator, (2) Ceiling fan (3) Thermometer in mouth (4) Air compressor
(5) Pressure Cooker (6) Carburetor (7) Radiator of an automobile.
(1) Kitchen refrigerator: Closed system. No mass flow takes place. Electricity is supplied to compressor motor and heat is lost to the atmosphere.
(2) Ceiling fan: Open system. Air flows through fan. Electricity is supplied to fan.
(3) Thermometer in the mouth: Closed system. No mass flow. Heat is given from mouth to the bulb of thermometer.
(4) Air compressor: Open system. Air of low pressure enters and air of high pressure leaves compressor, electrical energy is supplied to drive compressor motor.
(5) Pressure Cooker: Closed system. There is no mass exchange (except small steam leakage). Heat is supplied to cooker.
(6) Carburetor: Open system. Petrol and air enter and mixture of petrol and air leaves the carburetor. No change of energy takes place.
(7) Radiator of an automobile: Open system. Hot water enters and cold water leaves radiator. Heat energy is extracted by air flowing over outer surface of radiator tubes.
(a) Illustrate cetane and octane rating of the fuels (b) Compare two adn four stroke cycle engines.
Expression for normal and shear stress: Derive expression for normal and shear stress on the plane AE inclined at an angle B with AB subjected to the direct stresses of compr
Single Cylinder Vertical Engine has a bore of 30cm and a stroke of 40cm. The connecting rod is 100cm long. The mass of the reciprocating parts is 140Kg on the expansion stroke with
(a) Illustrate the First Law of Thermodynamics for a closed system undergoing a cycle. (b) A piston and cylinder machine contains a fluid system which passes through a complete
a. Objectives Observe vibration first hand Calculate natural frequency and damping coefficient observe changes as a result of temperature and material b. Backg
Figure aside shows a belt conveyors which consists of endless belt. It has a power driven pulley at one end which moves the belt or downward flow of materials. General
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Hydraulic calculations are carried out by both Process and Mechanical Engineering. Generally speaking, Process Engineering will initiate many hydraulic calculations for piping sys
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