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krok68 [10]
2 years ago
14

A 280 km long pipeline connects two pumping stations. It is desired to pump 0.56 m3/s of oil through a 0.62 m diameter line, the

discharge station is 250 m lower in elevation than the upstream station, and the discharge pressure is to be maintained at 300 kPa. The oil has a dynamic viscosity of 3.645 x 10-3 Pa·s and a density of 810 kg/m3. The pipe is constructed of commercial steel and the inlet pressure may be taken as 1 atmosphere. Considering the mechanical-energy friction loss Ff, determine the power required to pump the oil if the power efficiency is 70%. Develop a sketch of the piping system considered.
Ignore energy losses due to contraction, expansion & 90° bends!!!
Engineering
1 answer:
Arlecino [84]2 years ago
8 0
Can u answer myn and if u do I’ll do urs
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In the last 5 meters of braking, you lose ___ of your speed.
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Answer:

answer is

a)

3/4

Explanation:

In the last 5 meters of braking, you lose 3/4 of your speed.

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A 4-stroke Diesel engine with a displacement of Vd = 2.5x10^-3m^3 produces a mean effective pressure of 6.4 bar at the speed of
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Answer:

The power developed by engine is 167.55 KW

Explanation:

Given that

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We know that power is the work done per second.

So

P=6.4\times 100\times 2.5\times 10^{-3}\times \dfrac{2\pi \times2000}{120}

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3 years ago
Compressed Air In a piston-cylinder device, 10 gr of air is compressed isentropically. The air is initially at 27 °C and 110 kPa
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Answer:

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Explanation:

Solution

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A 10 gr of air is compressed isentropically

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y = 1.4

Now,

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Thus,

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p₂ becomes  2390.3 kPa

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(b) For the increase in total internal energy, is given below:

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ΔU =3030 J

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