Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Measurement By Orifice
Author: H. V. Beck
Source: 1965 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1965
Abstract: The orifice meter is fundamentally a velocity meter volume flow rates are obtained by considering the cross-sectional areas involved. The total quantity passed, over a measurement period, is obtained by multiplying the flow rate by the elapsed time. The basic flow equation comes from an analysis originally made by Daniel Bernoulli in 1738 and is based upon the concept of conservation of energy as applied to flowing fluids. In its simplest form this expression becomes V-v 2g (H - H2), where V velocity, in feet per second g acceleration of gravity, in feet per second per second H head, in feet of the flowing fluid h ss ( t t - H2) differential head, in feet of the flowine fluid It should be noted that, in the theoretical equation, the differential head is always in feet of the flowing fluid It the fluid is water, the head would be in feet of water- if it is oil, the head would have to be in feet of oil Similarly, if air is flowing through an orifice, the head inducing flow must basically be introduced into the flow equation in feet of air.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.