The head loss devices obstruct the flow and cause a

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: cy. Gas meters need many blades to produce sufficient torque and are accurate to 1 percent. Magnetic pulse pickup Turbine rotor Rotor supports (a) 10 – in turbine 1720 v = 0.06 cm2/s Pulses per cubic meter 1715 v v 1705 0.20 1700 0.38 1695 Fig. 6.31 The turbine meter widely used in the oil, gas, and water supply industries: (a) basic design; (b) typical calibration curve for a range of crude oils. (Daniel Industries, Inc., Flow Products Division.) | 1710 1690 0 0.44 500 1000 1500 m3/h (b) | e-Text Main Menu | Textbook Table of Contents | Study Guide 2000 6.10 Fluid Meters 393 Fig. 6.32 A Commercial handheld wind-velocity turbine meter. (Courtesy of Nielsen-Kellerman Company.) Since turbine meters are very individualistic, flow calibration is an absolute necessity. A typical liquid-meter calibration curve is shown in Fig. 6.31b. Researchers attempting to establish universal calibration curves have met with little practical success as a result of manufacturing variabilities. Turbine meter...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online