Process parameters in vapor-gas mixture generation

Abstract

A high-power inert gas generator has been devised to provide an inert medium in mines in extinguishing underground fires. Increased rates of coal extraction and increased number of pits with excess gas have made it necessary to utilize the device. To relate the gasdynamic and hydrodynamic parameters of the process and to define the regularities in the variation along the channel, the authors used a one-dimensional, quasistationary model for heat transfer in the hot gas flow, which was based on the equations for heat and mass transfer in gas-liquid media. A mass-transfer model is presented to describe the process. The calculations presented have been used in designing a prototype GIG-1500 generator, which was used to advantage in putting out a fire at a pit in the Pechora basin.