Question: Equation for block flow is based on a set of assumptions that are discussed in the textbook. We have one cyclone that obeys those assumptions;

Equation for block flow is based on a set of assumptions that are discussed in the textbook. We have one cyclone that obeys those assumptions; and its cut diameter is D1. We now connect three identical cyclones, each with an individual cut diameter of D1, in series, with complete remixing of the gas stream between them. We will call the cut diameter for this combination of three cyclones D3

(a) What is the value of (D3/ D1)?

(b) Is this the same answer we would get for (D3/ D1) if, instead of having three cyclones in series with remixing, we had one cyclone with N = 15 instead of the customary N = 5?

[Here it may help to sketch vs. (D3/ D1), all on the same plot, for one cyclone that obeys Eq. , for three cyclones with remixing, and for one cyclone with N = 15 .]

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