Determine the exergetic efficiency for a dead state
Hydrogen at 25 bar, 450°C enters an adiabatic turbine and expands to 2 bar, 160°C with a mass flow rate of 0.2 kg/s. For a dead state of To= 25°C, Po = 1 atm determine the exergetic efficiency.
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A 10-cm-diameter parallel-plate capacitor has a 1.0 mm spacing. The electric field between the plates is increasing at the rate 1.3 106 V/(m · s). What is the magnetic field strength at the following distances from the axis.
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A hydraulic jump at the base of a spillway of a dam is such that the depths upstream and downstream of the jump are 0.90 and 3.6m, respectively.
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