Question

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.

Answer 1

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