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20 kg of water at 200 kPa with a quality 25% is heated under a constant volume process until its pressure reaches 400 kPa. Determine: (a) Temperature, quality, and the volume in m^3 of the final state. (b) Qualitatively plot the process on P-v and P-T diagrams. (c) The specific internal energy in kJ/kg at the initial state and final state. (d) The overall change of internal energy in kJ, i.e. deltaU = U2 - U1
an agitation system is to be designed for a fluid having a density of 950kgm3 and viscosity of 0.005pas. the vessel
The heat transfer convection coefficient between the wall and the fluid is 500 W/m2.K. Find the maximum temperature in wall.
A Brayton gas turbine cycle has two stages of compression and two stages of expansion. The pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300K and each stage of the turbine at 1..
the service life of a battery used in a cardiac pacemaker is assumed to be normally distributed. a random sample of 10
If water leaves the basement at 88C, determine the rate of heat loss from the weather.
a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. heat is transferred to the tank
a uniform rod ab of length 3m and mass 20kg is suspended with its end b against a vertical wall while its end a is
What is the nozzle-exit-to-throat area ratio for case (a)? The gross thrust is the contribution to engine thrust made by the exhaust nozzle only.
the number of women-years of exposure is less than for established methods and all available evidence should be
(a) Draw a schematic of the system and (b) determine if the inventor's claims are true.
calculate the pressure drop through the tubes for each selection. Recommend a final design that specidies water-flow rate, tube size, number of tubes, and tube length. Comment on your selection.
a gas-turbine power plant operates on the simple brayton cycle between the pressure limits of 100 and 800 kpa. air
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