Question: A conical diffuser is used to expand a pipe flow from a diameter of (100 mathrm{~mm}) to a diameter of (150 mathrm{~mm}). Find the minimum

A conical diffuser is used to expand a pipe flow from a diameter of $100 \mathrm{~mm}$ to a diameter of $150 \mathrm{~mm}$. Find the minimum length of the diffuser if we want a loss coefficient

(a) $K_{\text {diffuser }} \leq 0.2$ or

(b) $K_{\text {diffuser }} \leq 0.35$.

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