Chapt06

Capacity may be changed by using different sized

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Unformatted text preview: ive, since its calibration will be linear. To ensure laminar flow for what otherwise would be a turbu- | e-Text Main Menu | Textbook Table of Contents | Study Guide 396 Chapter 6 Viscous Flow in Ducts Fig. 6.36 A Coriolis mass flowmeter. (Courtesy of ABB Instrumentation, Inc.) lent condition, all or part of the fluid is directed into small passages, each of which has a low (laminar) Reynolds number. A honeycomb is a popular design. Figure 6.37 uses axial flow through a narrow annulus to effect laminar flow. The theory again predicts Q p, as in Eq. (6.92). However, the flow is very sensitive to passage size; for example, halving the annulus clearance increases p more than eight Self-sealing pressure measurement connection O-ring-sealed pressure connection Sintered metallic filter Electrical connector O-ring Platinum resistance thermometer Piston-centering seat Microprocessor Flange connection Annular laminarflow path defined by piston and cylinder | v v Fig. 6.37 A complete flowmeter system using a laminar-flow element (in this case a narrow annulus). The flow rate i...
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This note was uploaded on 10/27/2009 for the course MAE 101a taught by Professor Sakar during the Spring '08 term at UCSD.

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