TITLE

Relationship between Expansion Coefficient of Standard Constrictions and the Speed of Sound in Measurement of the Flow Rate and Quantity of a Gas

AUTHOR(S)
Daev, Zh. A.
PUB. DATE
November 2013
SOURCE
Measurement Techniques;Nov2013, Vol. 56 Issue 8, p894
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The influence of the speed of sound on the expansion coefficient of constrictions is considered. It is shown that the expansion equation for standard nozzles may be expressed in terms of the speed of sound. An analysis is presented in which the criterion of the range of applicability for the gas expansion equation beyond the nozzles is evaluated in measurements of the flow rate and quantity of gas.
ACCESSION #
92553752

 

Related Articles

  • UP & AWAY. Sine, Jack // Flow Control;Nov2014, Vol. 20 Issue 11, p36 

    The article focuse son how a clamp-on ultrasonic flowmeter is helping firms to make the most of helium due to rising prices. The helium atom is smaller than any other element and second only to the hydrogen atom in lightness. Helium is chemically inert and does not form stable compounds with...

  • Meter-Testing Program Saves Money And Inspires Confidence. Ayers, Adam; Paulus, Gerald // Pipeline & Gas Journal;Jan2008, Vol. 235 Issue 1, p38 

    The article discusses the gas-meter testing accuracy and elucidates the gas-meter program. It is asserted that as gas-meter ages, its change in accuracy works in favor of the customer. The author stresses that a meter runs slow when the diaphragm is soaked with moisture, valves are dirty or...

  • GIR Q&A. Scornavacca, Frank // Gases & Welding Distributor;Mar/Apr2000, Vol. 44 Issue 2, p58 

    Answers queries about gases. Regaining the normal blue color when the acetylene flame in an atomic absorption instrument burns with another color; Brass pressure regulator; Flowmeter.

  • Gas cluster ion formation under pulsed supply of various working gases. Ieshkin, A.; Ermakov, Yu.; Chernysh, V. // Technical Physics Letters;Nov2015, Vol. 41 Issue 11, p1072 

    Gas cluster formation during gas expansion through a supersonic nozzle with a skimmer is described. The role of the buffer zone between a pulsed valve and a nozzle in the regime of pulsed supply of working gas is shown. Influence of the working gas type on the cluster ion pulse parameters is...

  • On-Site Gas Blenders Boost Distributor Profits. Olejar, Michael // Gases & Welding Distributor;Jul/Aug2002, Vol. 46 Issue 4, p36 

    Focuses on the development of gas blender technologies that expand profit potential for the knowledgeable distributors. Applications of blenders; Use of simple valve manifolds incorporating basic flowmeter technology; Process flow diagram of a typical proportional gas blender; Existence of...

  • How to deliver liquids and gases accurately. Johnson, Dick // Control Engineering;Feb99, Vol. 46 Issue 2, p101 

    Focuses on the mechanics of custody transfer during the delivery of liquids and gases through pipelines. Importance of accuracy of determining how much material was transferred; Definition of custody transfer; Other methods used in transferring materials; Conditions in which flow measurement is...

  • PAGE 4: THE CASE OF THE CONTEST CHEATER. Tarricone, Michele // Scholastic SuperScience (Teacher's Edition);Apr2003, Vol. 14 Issue 7, pT3 

    Presents a teaching plan for an article on the expansion and contraction of gases published in the April 2003 issue of the journal 'Super Science.'

  • A pulsed supersonic expansion with a source temperature below 100 K. Bucher, J. P.; Douglass, D. C.; Xia, P.; Bloomfield, L. A. // Review of Scientific Instruments;Sep90, Vol. 61 Issue 9, p2374 

    We have produced a pulsed supersonic expansion of helium with an effective pre-expansion temperature below 100 K. This low initial gas temperature is achieved by cooling a pulsed gas valve and gas channel with liquid nitrogen. The resulting supersonic helium beam has a translational velocity...

  • New diesel injection nozzle flow measuring device. Marcic, Milan // Review of Scientific Instruments;Apr2000, Vol. 71 Issue 4 

    A new measuring device has been developed for diesel injection nozzle testing, allowing measuring of the steady flow through injection nozzle and the injection rate. It can be best applied for measuring the low and high injection rates of the pintle and single hole nozzle. In steady flow...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics