Measuring methane explosibility under higher pressures
The contribution describes the development of apparatus intended for experimental verification of the explosion limits of various flammable gases under higher pressures, and the results of measurements achieved.
The operability of the apparatus has been tested on various samples of gaseous mixtures of methane, oxygen and nitrogen having known concentrations. It is also possible to use this apparatus for measuring the reliability of gaseous inertisation mixtures used under higher pressures in the process of purging and removing flammable substances from pipelines. In this case, higher pressures are understood to be pressures up to 25 bar, which have to be achieved when purging pipes on routes with large differences in elevation.
The second part of the article provides a comprehensive picture of the results of measurements achieved. The experimental apparatus was used for verifying the safety of inertisation mixtures under higher pressures, and also for measuring methane’s upper and lower explosion limits under higher pressures. The results of the measurements are clearly shown in tables and graphs.
Read more in the article Measuring methane explosibility under higher pressures (PDF, Czech language, 901 kB).