An oil pump is drawing 40 kW of electric power while pumping oil with p = 860 kg/m³ at a volume flow rate of 0.1 m³/s. The inlet and outlet diameters of the pipe are 8cm and 16cm respectively. If the pressure rise of oil in the pump is measured to be 400 kPa, and the motor efficiency is 90 percent. (1) What is the change of mechanical energy rate AEmech as the fluid flows through the pump? (Neglect the change of potential energy of the fluid) (2) What is the mechanical efficiency of the pump, and what is the overall mechanical efficiency of the pump-motor unit? Pump outlet Diameter 16cm PUMP Pump inlet diameter 8cm Motor 40 kW

Air enters through a duct of a fan with a velocity of 4m/s and an inlet pressure of2cm of water less than atmospheric pressure. The air leaves the fan through aduct at a velocity of 12m/s and a discharge static pressure of 8cm of waterabove atmospheric pressure. If the specific weight of air is 1.2kg/m3 and the fandelivers1 2m3/s, what is the fan input power to the motor if the fan has amechanical efficiency of 70% and motor efficiency of 80%.

Water is being pumped the through one inch diameter piping arrangement to a higher elevation (5 meters up). Assume incompressible fluid conditions and some heat losses to the surroundings. At the inlet water pressure is 1 bar, temperature 15C, and volumetric flow rate is 0.02 m3/s. At the exit pressure is 2.2 bar, temperature is 10C and velocity of the stream is 40 m/s. Determine: a.Density of the inlet stream using NIST tables.  b.Mass flow rate [kg/s] c.Determine h2 from known p2 and T2 using NIST tables d.Find heat rate removed from Q=m(h1-h2) Use Energy Balance Equation with enthalpy difference and in the units of kW to find pumping power in kW. NOTE: The heat is removed from the system, so it should be negative in your equation! show all steps please

Water is being pumped the through one inch diameter piping arrangement to a higher elevation (5 meters up). Assume incompressible fluid conditions and some heat losses to the surroundings. At the inlet water pressure is 1 bar, temperature 15C, and volumetric flow rate is 0.02 m3/s. At the exit pressure is 2.2 bar, temperature is 10C and velocity of the stream is 40 m/s. Determine: a.Density of the inlet stream using NIST tables.  b.Mass flow rate [kg/s] c.Determine h2 from known p2 and T2 using NIST tables d.Find heat rate removed from Q=m(h1-h2) Use Energy Balance Equation with enthalpy difference and in the units of kW to find pumping power in kW. NOTE: The heat is removed from the system, so it should be negative in your equation!

Water is being pumped the through one inch diameter piping arrangement to a higher elevation (5 meters up). Assume incompressible fluid conditions and some heat losses to the surroundings. At the inlet water pressure is 1 bar, temperature 15C, and volumetric flow rate is 0.02 m3/s. At the exit pressure is 2.2 bar, temperature is 10C and velocity of the stream is 40 m/s. Determine: a.Density of the inlet stream using NIST tables.  b.Mass flow rate [kg/s] c.Determine h2 from known p2 and T2 using NIST tables d.Find heat rate removed from Q=m(h1-h2) Use Energy Balance Equation with enthalpy difference and in the units of kW to find pumping power in kW. NOTE: The heat is removed from the system, so it should be negative in your equation! show all steps please thanks

What is the friction loss in cm of water in a 2.44m diameter chimney 61m high up which gas is flowing at 9.14 m/sec? Gas density is 0.6776 kg/m3.

We have a tank (large enough to neglect the velocity of the fluid surface in the tank v1 =0). The tank contains water at a mevel of 15 meters. The tank is enclosed and the air space above the water is at 5 atm. The exit of the tank consists of 25 meters of 2 cm diamter pipe with d/D = 0.0004. It exhaust to the atmospere at 1 atm. What is the exit velocity?

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6 m 6 m Elbow 6 m 3 m. Activate Wind Goto Sectines1 15 m A fluid is pumped at a rate of 0.00156 m/s through a 0.025-m-diameter pipe to fill a 9°C 020