Engineering, 19.04.2021 15:50 ctuek5990
An ideal Otto cycle has a compression ratio of 9. At the beginning of compression, air is at 14.4 psia and 80o F. During constant-volume heat addition 450 Btu/lbm of heat is transferred. Calculate (a) the maximum temperature, (b) efficiency and (c) the net work output. Use the IG model. (d) What-if Scenario: What would the efficiency be if the air were at 100o F at the beginning of compression
Answers: 1
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An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
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Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
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Burgers vector is generally parallel to the dislocation line. a)-true b)-false
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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.
Answers: 1
An ideal Otto cycle has a compression ratio of 9. At the beginning of compression, air is at 14.4 ps...
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