- Tytuł:
- The influence of nitrogen inertisation on Graham’s ratio value
- Autorzy:
- Świerczek, Lucjan
- Powiązania:
- https://bibliotekanauki.pl/articles/1853864.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
górnictwo
zagrożenie pożarowe
inertyzacja
mining
fire hazard
Graham’s ratio
inertisation - Opis:
- As a preliminary point, four longwalls, where inertisation of goafs using nitrogen was applied, have been characterised. Next, the issue concerning the unreliable Graham’s ratio values, which occur in certain ranges of its denominator value, were discussed. The reliability criterion of this indicator was also quoted. Afterwards, a basic statistical sample consisting of the results of chromatographic analyses of air samples taken from longwalls areas, where nitrogen inertisation was not applied and were classified by Graham’s ratio as samples safe from endogenous fire hazard was described. Then, the results of comparative analyses of the base sample with the concentrations of gases contained in air samples taken from the areas of the previously described four longwalls, which according to Graham’s ratio, were also safe from the endogenous fire were presented. Comparative analyses were performed before and after applying Graham’s ratio reliability criterion.
- Źródło:
-
Archives of Mining Sciences; 2021, 66, 2; 197-211
0860-7001 - Pojawia się w:
- Archives of Mining Sciences
- Dostawca treści:
- Biblioteka Nauki