Air enters a fan through a duct  velocity of 6.3 m/s and an inlet static  pressure of 2.5cm of water less than the  atmospheric pressure. The air leaves the fan  through the duct at a velocity of 11.25 m/s  and a discharge pressure of 7.62cm of water  above the atmospheric pressure. If, the  density of the air is 1.2kg/m3 and the fan  delivers 9.45m3 /s, what is the fan efficiency  when the power input to the fan is 13.75 kW  at the coupling.

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A: Step 1: Step 2: Step 3: Step 4:

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A: Given data P1=2.5 barV1=2 m/secV2=20 m/sec

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A:

Q: Water is flowing in a fire hose with a velocity of 1 m/s and pressure of 3.8 bar. At the nozzle the…

A: Solution.

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A: Power consumed = 3.8 kW Pressure difference = 7 kPa

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Q: Through a duct air enters a fan at 6.3 m/s and an inlet static pressure 2.5 cm of water less than…

A: Solution is attached below:

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A: SG=1.75 d=6cm=0.06mE=80 J/N=80mz=2.60mP=75 kPaV=?

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Q: PROBLEM 1: Assume 5 Ib/sec of fluid enter a steady-state, steady flow system with p1 = 100 psia, p2…

A: Mass flow rate, m˙= 5 lb/sec P1= 100 psia ρ1= 0.2 lb/ft3 v1= 100 fps u1= 800 Btu/lb P2= 20 psia ρ2=…

Q: As shown in the figure below, water behind a dam enters an intake pipe at a pressure of 24 psia and…

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Q: Water is to be pumped from the bottom of a well 20 ft deep with a specific heat of 1 BTU/lbm F is…

A: Given Data1hP=764WTs=35°Fc=1 BTU/lbm°FQ=500 BTU/minh=20 ft=6.096m

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Q: Air flows through a converging-diverging (c-d) nozzle. It is supplied from a large air reservoir in…

A: As given that at inlet of nozzle P1= 190 kPa, T1= 349 K , V2=396 m/s , A= 0.005 m2 ;So the velocity…

Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.