Engineering, 07.09.2019 02:10, ob3ymysins
Apelton wheel operates under a head of 274m. the jet diameter is 100mm the coefficient of velocity for the nozzle is 0.97, and the ratio of bucket speed to jet-speed is 0.47. the angle of deflection of the water in passing over the bucket is 160degrees and the relative velocity reduces by 10% in the process. calculate the diameter of the runner, the hydraulic efficiency, the power development at the bucket and the shaft power if the speed is 600 rpm and the mechanical efficiency is 0.9.
Answers: 2
Engineering, 04.07.2019 18:10, QueenLife4869
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Engineering, 04.07.2019 18:20, jessie8022
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
Engineering, 04.07.2019 19:20, dndndndnxmnc
The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal
Answers: 3
Apelton wheel operates under a head of 274m. the jet diameter is 100mm the coefficient of velocity f...
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