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ReadingQuestions_14_Chp_8.6 - 3 How can an engineer obtain...

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Chemical Engineering 374 Fall 2011 Reading Questions 14—Chapter 8.6 Name ________________________________________________________ 1. When can minor losses actually be larger than pipe losses in a piping system? 2. With the loss coefficient method of predicting minor losses, a single value of K L is used for a valve or fitting, which suggests that the loss coefficient is independent of Reynolds number. Are the losses predicted for that valve or fitting also independent of Reynolds number? Explain.
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Unformatted text preview: 3. How can an engineer obtain more accurate values of loss coefficients for a fitting or valve than the approximate values in Table 8-4? 4. What physical phenomenon is responsible for higher losses in a sharp entrance than in a rounded entrance? 5. What is the primary cause of losses in bends or elbows? 6. In Example 8-6, why did the pressure increase as the water flowed through the fitting? How is it possible for a fluid to flow from a lower to a higher pressure?...
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