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A vertical cylindrical tank 2m diameter has, at the bottom, a 0.05m diameter sharp edged orifice for which the discharge coefficient is 0.6.
a) If water enters the tank at a constant rate of 0.0095 cumecs find the depth of water above the orifice when the level in the tank becomes stable.
b) Find the time for the level to fall from 3m to 1m above the orifice when the inflow is turned off.
c) If water now runs into the tank at 0.02 cumecs, the orifice remaining open, find the rate of rise in water level when the level has reached a depth of 1.7m above the orifice.
A heat pump is used to heat a building. The outside air temperature is -10 C and the desired inside temperature is 20.3 C. The heat loss through the walls, ceiling, etc, is 30 kW. Determine the ideal coefficient of performance and the minimum power r..
Air undergoes a process from T1 = 645 K, p1 = 12 bar to a final state where s2 = s1, p2 = 1 bar. Employing the ideal gas model, determine the final temperature T2, in Fahrenheit. Solve using pr data from the relevant table.
R-134 enters the condenser of a window air conditioning unit at 800 kPa and 35 C and leaves as a saturated liquid at the same pressure. The compressor current draw is measured to be 5 amps at 240 V and the R-134 has a mass flow rate of 0.018 kg/s. If..
A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent
refrigerant 134a at 140f and 125 psia enters a condenser of a chiller at 800 lbh and exits as a saturated liquid at the
Moist air at 45?C and relative humidity 30% (State 1) with another stream of moist air at 20?C and relative humidity 50% (State 2) in an adiabatic duct. Mass flow rate of dry air is 0.8 kg/s at section 1 and 1 kg/s at section 2. The mixed stream (Sta..
Calculate the blood volume of the animal.
in a processing plant cold water at 3degc is pumped through a 20 mm outside diameter galvanized steel pipe. the pipe
a power plant generates 150 mw of electrical power. it uses a supply of 1000 mw from a geothermal source and rejects
Derive the radial equilibrium equation for an incompressible fluid flowing with axisymmetric swirl through an annular duct. Air leaves the inlet guide vanes of an axial-flow compressor in radial equilibrium and with a free-vortex tan genital veloc..
Determine a) the volume of the tank,b)the final temperature and pressure, and c) the internal energychange of the water.
A reversed Carnot engine provides 200kw of heating at 350K while operating between 350K and 280K. A carnot engine operating between 900 K and 300 K provides the power for heating. Determine the heat required for the Carnot engine.
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