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The flow energy of 0.124 m3/min of a fluid crossing a boundary to a system is 18 kW. Find the pressure at this point.

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Best answer

If pressure is p1 Area is A1

Velocity is V1

Volume flow rate (Q) = A1V1

∴ Power = force × velocity

= p1A1 × V1

= p1× (Q)

∴ \(18 = p_1 \times \frac{0.124}{60}\)

\(p_1 = \frac{16 \times 60}{0.124}\) kPa

\(= 8.71 \)MPa

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