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Study of the Accuracy of Methane Concentration Forecasts in the Area of Longwall Outlet B-3 in Seam 407/1 in KWK “Borynia-Zofiówka” Ruch Zofiówkaстатья
- Авторы: Badura Henryk, Zmarzły Marian, Trzaskalik Paweł, Korshunov Aleksandr Ivanovich
- Сборник: International Conference Energy and Mining – Perspectives on Sustainable Development
- Серия: New Trends in Production Engineering
- Том: 3
- Глава в коллективной монографии
- Год издания: 2020
- Издательство: Walter de Gruyter GmbH & Co. KG
- Местоположение издательства: Germany
- Первая страница: 120
- Последняя страница: 130
- DOI: 10.2478/ntpe-2020-0011
- Аннотация: In the presented publication, an ex post forecast of methane concentration at the airway outletwas carried out on the basis of equations previously developed and repeatedly tested by H.Badura and its errors were calculated. This forecast was considered as a reference level.Next, using the same forecast equations, the forecasting of methane concentration at thesensor location up to 10 m in front of the longwall face and at the longwall outlet was carriedout, followed by the analysis of forecast errors. Since the measurement of methaneconcentrations in the locations under consideration differed, the results of forecasts alsodiffered. Therefore, in order to assess the accuracy of forecasts, their absolute and relativeerrors were calculated and then compared with the forecast errors at the airway outlet. Theanalysis of errors showed that there are differences in forecast accuracy and it is advisableto develop new forecast equations mainly for the longwall outlet, but also for the location ofmethane concentration sensor installed in the airway up to 10 m in front of the longwall.
- Добавил в систему: Коршунов Александр Иванович