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What is significance of fan law?

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in Food Processing Unit Operations by (110k points)
What is significance of fan law?

(a) It deals with pressure and velocity of the fan

(b) It deals with pressure and power consumption of the fan

(c) It deals with performance of the fan and power consumption of the fan

(d) It deals with performance of the fan velocity of the fan

The question was posed to me during an interview.

This key question is from Fluid Flow Applications in section Fluid Flow Theory & Applications of Food Processing Unit Operations

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Right option is (c) It deals with performance of the fan and power consumption of the fan

The best explanation: Fan law gives the relationship between performance of the fan and power consumption of the fan. This estimates the operation conditions of the fan under different speeds, fluid density, impeller diameter.

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