How large is the mass flow rate
A large stationary diesel engine produces 15 MW with a thermal efficiency of 40%. The exhaust gas which we assume is air, flows out at 800K, and the intake is 290K. How large is the mass flow rate? Can the exhaust flow energy be used?
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A cylindrical glass of water (H2O) has a radius of 4.66 cm and a height of 13.2 cm. The density of water is 1.00 g/cm3. How many moles of water molecules are contained in the glass? Do not enter unit.
The static pressure at the pump inlet must not be lower than -6m of water gage. Determine the diameter of the standard commercial steel pipe that will give the required performance.
Gas is confined in a tank at a pressure of 1.19E+6 Pa and a temperature of 14.2°C. If half of the gas is withdrawn and the temperature is raised to 66.2°C, what is the new pressure in the tank?
Using the isothermal transformation diagram for a 1.13wt% C steel alloy (found in Callister), determine the final microstructure (in terms of just the microconstituents present).
A large stationary diesel engine produces 15 MW with a thermal efficiency of 40%. The exhaust gas which we assume is air, flows out at 800K, and the intake is 290K. How large is the mass flow rat? Can the exhaust flow energy be used?
Ignoring the expansion of the tires, find the air temperature (in K) inside the tires at the end of the trip. Do not enter unit.
A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be 95% confident that the estimate is within 2.5 percentage points of the true proportion. A recent study of 320 females showed that 66% took vitami
A refrigerator should remove 500 kJ from some food. Assume the refrigerator works in a Carnot cycle between -10 degrees C and 45 degrees C with a motor compressor of 500 W. How much time does it take if this is the only cooling load?
A square loop of dimensions 2a x 2a lies in the xy plane with its center at the origin and sides parallel to the x and y axes. A counterclockwise current I runs around the loop. Find the magnetic field on any point on the z-axis.
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