Górniczy Agregat Gaśniczy
Polish jet engine unit used in mine fires
The Górniczy Agregat Gaśniczy (GAG) is a jet engine inertisation unit developed for use in mines, controlling and suppressing coal seam fires and neutralising firedamp situations. The unit was designed in Poland in the 1970s, and its name roughly translates as "Mine Fire Suppression Apparatus". A GAG 3A unit was developed by the Queensland Mines Rescue Service, in association with the Commonwealth Scientific and Industrial Research Organisation (CSIRO). GAG units have been used in Australia since 1998.
Mechanism
The GAG unit emits carbon dioxide, nitrogen and water vapour. The gases lower the oxygen levels, suppressing fires, and forcing methane out of the mine. A unit is capable of pumping a volume of 25 m3/s, creating levels of less than 1% oxygen. When fully assembled, the unit is 12 metres long and weighs 2.5 tonnes. As of 2010, there are only three GAG units in the world – in Australia, the Netherlands and Ukraine. The "GAG" unit from the Netherlands is called Steamexfire.
“Górniczy Agregat Gaśniczy” enters the record as polish jet engine unit used in mine fires. Crown Archives preserves that source wording while asking what Górniczy, Agregat and Gaśniczy can confirm, complicate or overturn.
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This entry incorporates text from “Górniczy Agregat Gaśniczy” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.