20-l explosibility test chamber for dusts and gases

Cashdollar, Kenneth L.; Hertzberg, Martin
April 1985
Review of Scientific Instruments;Apr1985, Vol. 56 Issue 4, p596
Academic Journal
The Bureau of Mines has designed a 20-l test chamber for the explosibility testing of dusts, gases, and their mixtures. It can be used to measure lean and rich limits of flammability, explosion pressures and rates of pressure rise, minimum ignition energies, minimum oxygen concentrations for flammability, and amounts of inhibitor necessary to prevent explosions. The 20-l chamber can be used at initial pressures that are below, at, or above atmospheric as long as the maximum explosion pressure is less than 21 bar, which is the rated pressure of the chamber. The chamber instrumentation includes a pressure transducer, optical dust probes, an oxygen sensor, and multichannel infrared pyrometers. Ignition sources used include electric sparks and electrically activated chemical ignitors. Examples of the various types of data that can be obtained for dusts and gases are shown.


Related Articles

  • It's in the bag. Daviss, Bennett // New Scientist;06/10/2000, Vol. 166 Issue 2242, p36 

    Reports on the development of a method by which to detect bombs in airports. Existing airport bomb detectors; Method of detonating loose molecules of bombs in luggage; Use of a microcantilever to detect the explosion of the molecules; Benefits of the detection, including speed; Problems in the...

  • FROM WASTE MANAGEMENT TO BOMB DETECTION. Vogt Jr., Carlton F. // Design News;12/3/90, Vol. 46 Issue 23, p15 

    The article discusses the development of the Combined Pulsed-Neutron and X-ray Interrogation System which could be used in airports to screen luggage and packages for explosives and drugs. The system is developed by Oak Ridge National Laboratory with Pajarito Scientific Corp. of New Mexico....

  • Velocity map imaging with non-uniform detection: Quantitative molecular axis alignment measurements via Coulomb explosion imaging. Underwood, Jonathan G.; Procino, I.; Christiansen, L.; Maurer, J.; Stapelfeldt, H. // Review of Scientific Instruments;Jul2015, Vol. 86 Issue 7, p1 

    We present a method for inverting charged particle velocity map images which incorporates a non-uniform detection function. This method is applied to the specific case of extracting molecular axis alignment from Coulomb explosion imaging probes in which the probe itself has a dependence on...

  • Laboratory-scale controlled-atmosphere chamber for use with premium coal samples. Filla, B. James; Callanan, Jane E. // Review of Scientific Instruments;Apr1985, Vol. 56 Issue 4, p592 

    The recent availability of premium coal samples makes it desirable to have the capability for working with these materials, in one’s own laboratory, in an atmosphere which can be controlled. A controlled-atmosphere chamber, large enough to allow for processing samples yet small enough to...

  • news briefs.  // Scientific Computing & Instrumentation;Aug2002, Vol. 19 Issue 9, p8 

    Reports on developments relevant to scientific computing and instrumentation in the U.S. as of August 2002. Equipment news; Launch of process control validation systems by Taratec; Strategic alliance between the Duke Bioinformatics Shared Resource and SPSS. INSET: news watch.

  • New Analytical Technologies. Hurst, Jeff // Scientific Computing & Instrumentation;Aug2002, Vol. 19 Issue 9, p10 

    Discusses key issues involved in the identification of analytical technologies for laboratories in the U.S. Ensuring that the technology is leading edge; Ensuring an open line of communication between vendors and laboratories; Implications on scientific computing and instrumentation.

  • news briefs.  // Scientific Computing & Instrumentation;Jun2003, Vol. 20 Issue 7, p8 

    Features several scientific apparatus and instruments in the U.S. Key features and specifications; Key industrial applications; Manufacturer information.

  • marketplace.  // Scientific Computing & Instrumentation;Jun2003, Vol. 20 Issue 7, p34 

    Features several scientific instruments and apparatus in the U.S. Key features and specifications; Key industrial applications; Manufacturer information.

  • Advanced viscometric thermometer: Steady and unsteady state temperature measurement in electric or magnetic fields. Seyed-Yagoobi, Jamal // Review of Scientific Instruments;Jan1991, Vol. 62 Issue 1, p249 

    The viscometric thermometer is one of the few simple and inexpensive methods of temperature measurement in the presence of electric or magnetic fields. This work further improves our previous viscometric thermometer design so it now measures the temperature distributions in both steady and...


Read the Article


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

Try another library?
Sign out of this library

Other Topics