Engineering, 07.08.2021 03:30 604341
Consider a regenerative Brayton cyclewith intercooling between two stages of compression and reheating between two stages of expansion. The overall pressure ratio of the cycle is 9. Air enters each stage of the compressor at 300K and each stage of the turbine at 1200K. Accounting for the variation of specific heats, determine the minimum mass flow rate of air needed to develop a net power output of 110MW.
Answers: 1
Engineering, 03.07.2019 19:30
When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line
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Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
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Engineering, 04.07.2019 19:10
The proportional limit is always greater than the yield strength for a material. a)-trune b)- false
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Engineering, 04.07.2019 19:10
For a process taking place in a closed system containing gas, the volume and pressure relationship is pvi-constant. -1.5 bar, the process starts with initial conditions, pi = =0.03 m3 and ends with final volume, v2-0.05 m3 determine the work done by the gas.
Answers: 2
Consider a regenerative Brayton cyclewith intercooling between two stages of compression and reheati...
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