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A centrifugal radial water pump has the dimensions shown in Fig. P12.15. The volume rate of flow is 0.25 ft3 /s, and the absolute inlet velocity is directed radially outward. The angular velocity of the impeller is 960 rpm. The exit velocity as seen from a coordinate system attached to the impeller can be assumed to be tangent to the vane at its trailing edge. Calculate the power required to drive the pump.
an air conditioner operating at steady state maintains a dwelling at 20 degrees celsius on a day when the outside
An insulated tank is divided into two parts by a partition. One part of the tank contains 2.5 kg of compressed liquid water at 60°C and 600 kPa while the other part is evacuated. The partition is now removed, and the water expands to fill the entire ..
On T - r coordinates sketch, in qualitative manner, the steady-state temperature distribution, identifying important features.
The air temperature in the oven is 350?C, and the convection coefficient between the air and the sensor is 40 W/m2 · ?C. What temperature will be indicated by the thermocouple?
three kg of gas in a piston cylinder assembly undergo a process during which the relationship between pressure and
a rigid tank having a volume of 0.1 m3 initially contains water as a two-phase liquid-vapor mixture at 1 bar and a
steam enters a heat exchanger operating at steady state at 0.1 mpa and 100 degrees c and exits at the same pressure as
one kilogram of water initially at 200 degc and 0.2 mpa undergoes an isothermal internally reversible compression
Calculate the total horizontal load per unit width and the location of the center of pressure measured from the bottom.
For the siphon in Fig. 6.26, assume that the volume flow rate is 5.6 X 10-3m3 /s. Determine the maximum allowable distance Y if the minimum allowable pressure in the system is -18 kPa (gage).
a cylindrical specimen of some metal alloy having an elastic modulus of 108 gpa and an original cross-sectional
a solution of ethanol is pumped to a vessel 25 m above a reference level through a 25 mm inside diameter steel pipe at
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