Allied & ICAR Exam Bank • ALLIED_1345 NAT • 2 Marks

Section 7: Dairy and Food Engineering

Dairy Unit Operations

Subtopic: Milk Homogenizer Power

Question Statement:

A dairy homogenizer pumps milk at volumetric flow rate $Q = 3600\text{ L/h} = 0.001\text{ m}^3/\text{s}$ against a net homogenization pressure drop $\Delta P = 20\text{ MPa} = 20 \times 10^6\text{ Pa}$. The hydraulic power imparted to the milk in kW is:

Answer Key:

20.0

Step-by-Step Solution & Explanation

$P = Q \times \Delta P = 0.001\text{ m}^3/\text{s} \times 20 \times 10^6\text{ N/m}^2 = 20,000\text{ W} = 20.0\text{ kW}$.
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