What is the formula for the fundamental relationship for the design of the ventilation system?(a) head of air inside the machine = hydrodynamic resistance * volume of air passing^2(b) head of air inside the machine = hydrodynamic resistance + volume of air passing^2(c) head of air inside the machine = hydrodynamic resistance – volume of air passing^2(d) head of air inside the machine = hydrodynamic resistance / volume of air passing^2I got this question in my homework.This interesting question is from Design of Fan topic in portion Aspects of Design of Mechanical Parts of Design of Electrical Machines

What is the formula for the fundamental relationship for the design of

1.	What is the formula for the fundamental relationship for the design of the ventilation system?(a) head of air inside the machine = hydrodynamic resistance * volume of air passing^2(b) head of air inside the machine = hydrodynamic resistance + volume of air passing^2(c) head of air inside the machine = hydrodynamic resistance – volume of air passing^2(d) head of air inside the machine = hydrodynamic resistance / volume of air passing^2I got this question in my homework.This interesting question is from Design of Fan topic in portion Aspects of Design of Mechanical Parts of Design of Electrical Machines
Answer» The CORRECT choice is (a) head of air inside the MACHINE = HYDRODYNAMIC resistance * volume of air passing^2 Best explanation: First the hydrodynamic resistance is CALCULATED along with the volume of air passing. On substitution in the formula GIVES the head of air inside the machine.

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