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Question :1)
An item of plant requires 2 m3 min-1 of pulsation-free and oil-free compressed air supplied at a pressure of 7 bar. Select and size a suitable type of machine with regard to output FAD (free air delivered) and quality of air supply.
Question :2) Air is drawn into a compressor at normal temperature and pressure (N.T.P.) and compressed to a pressure of 6 bar gauge. After compression the air is delivered at 1.2 m3 min-1 and cooled to a temperature of 30°C, at which point condensate is collected at the rate of 2 litres per hour. Estimate the FAD (N.T.P.) of the compressor, and the relative humidity of the air entering the compressor.
saturated liquid water is heated at constant pressure in a steady-flow device until it is a saturated vapor. calculate
considering a river flowing toward a lake which is 40 m below. it is known that the river flows at a constant velocity
a spring-loaded piston-cylinder device contains 1 kg of carbon dioxide. this system is heated from 100 kpa and 25c to
a composite rod consists of two different materials a and b each of length 0.5 l. the thermal conductivity of material
a gas in a piston-cylinder assembly undergoes two processes in series. from state 1 to state 2 there is energy transfer
Evaluate the position and magnitude of the maximum bending moment.
a weight attached to a spring of stiffness 525 nm has a viscous damping device. when the weight is displaced and
the compression ratio of an ideal dual cycle is 14. air is at 100 kpa and 300 k at the beginning of the compression
a steel jacket e 200 gpa and v 0.3 having an inside diameter of 150 mm and an outside diameter of 200 mm is shrunk
an ideal otto cycle has a compression ratio of 81. at the beginning of the compression process air is at 95 kpa and 27
solid steel shaft d 20mm is subjected to a torque of 1200nm. what size hollow circular steel shaft could be used to
a solo motor cycle ride and passenger together have a mass of 320 kg the combined centre of gravity being 525mm above
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