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Unformatted text preview: a quick
estimate (using the hydraulic diameter) and a more accurate
estimate (using the effective diameter correction), and compare. (c) If the losses are different for the two cases, explain
why. Which duct, if any, is more “efficient”? A
b a R C6.5 “manifold’’ is surprisingly high, and there will be too much
flow through the holes near that end. One remedy is to vary
the hole size along the pipe axis. Make a design analysis, perhaps using a personal computer, to pick the optimum hole-size
distribution that will make the discharge flow rate as uniform
as possible along the pipe axis. You are constrained to pick
hole sizes that correspond only to commercial (numbered) metric drill-bit sizes available to the typical machine shop. Textbook Table of Contents | Study Guide References 423 20 cm Pump D6.1
10 m design. The design should be economical — both in capital
costs and operating expense. Taco Inc. has provided the following cost estimates for system components: D6.2 It is desired to design a...
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- Spring '08