Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine
This study examines the influence of average monthly load variations on the unit energy consumption indicator (ZE) of belt conveyors, defined as the energy required to transport 1 Mg of bulk material (coal) over a distance of 1 km. The analysis is based on energy consumption data from twin belt conv...
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2025-04-01
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| author | Mirosław Bajda Leszek Jurdziak Zbigniew Konieczka |
| author_facet | Mirosław Bajda Leszek Jurdziak Zbigniew Konieczka |
| author_sort | Mirosław Bajda |
| collection | DOAJ |
| description | This study examines the influence of average monthly load variations on the unit energy consumption indicator (ZE) of belt conveyors, defined as the energy required to transport 1 Mg of bulk material (coal) over a distance of 1 km. The analysis is based on energy consumption data from twin belt conveyors operating in a Polish lignite mine over four years. Monthly records included transported mass, conveyor operating time, energy consumed, and atmospheric conditions (temperature and humidity). The results indicate statistically significant differences in ZE between the analyzed conveyors. A relative increase in average load by 35% (from 2000 Mg/h) corresponded to a 26% reduction in ZE, with a specific decrease of 90 Wh/Mg/km. The findings highlight that optimizing conveyor load distribution can significantly reduce energy consumption—by up to 30%. These insights underscore the potential for energy savings through better conveyor load management without requiring significant infrastructural investments. |
| format | Article |
| id | doaj-art-04d16d036e25408eb1f2a10b07c7bced |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-04d16d036e25408eb1f2a10b07c7bced2025-08-20T02:17:20ZengMDPI AGEnergies1996-10732025-04-01188200310.3390/en18082003Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite MineMirosław Bajda0Leszek Jurdziak1Zbigniew Konieczka2Faculty of Geoengineering, Mining and Geology, Wrocław University of Science and Technology, 50-370 Wrocław, PolandFaculty of Geoengineering, Mining and Geology, Wrocław University of Science and Technology, 50-370 Wrocław, PolandPGE Górnictwo i Energetyka Konwencjonalna S.A, Oddział KWB Bełchatów, 97-400 Bełchatów, PolandThis study examines the influence of average monthly load variations on the unit energy consumption indicator (ZE) of belt conveyors, defined as the energy required to transport 1 Mg of bulk material (coal) over a distance of 1 km. The analysis is based on energy consumption data from twin belt conveyors operating in a Polish lignite mine over four years. Monthly records included transported mass, conveyor operating time, energy consumed, and atmospheric conditions (temperature and humidity). The results indicate statistically significant differences in ZE between the analyzed conveyors. A relative increase in average load by 35% (from 2000 Mg/h) corresponded to a 26% reduction in ZE, with a specific decrease of 90 Wh/Mg/km. The findings highlight that optimizing conveyor load distribution can significantly reduce energy consumption—by up to 30%. These insights underscore the potential for energy savings through better conveyor load management without requiring significant infrastructural investments.https://www.mdpi.com/1996-1073/18/8/2003belt conveyorenergy consumptionunit energy consumptionconveyor loadtheoretical capacity |
| spellingShingle | Mirosław Bajda Leszek Jurdziak Zbigniew Konieczka Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine Energies belt conveyor energy consumption unit energy consumption conveyor load theoretical capacity |
| title | Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine |
| title_full | Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine |
| title_fullStr | Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine |
| title_full_unstemmed | Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine |
| title_short | Impact of Monthly Load Variability on the Energy Consumption of Twin Belt Conveyors in a Lignite Mine |
| title_sort | impact of monthly load variability on the energy consumption of twin belt conveyors in a lignite mine |
| topic | belt conveyor energy consumption unit energy consumption conveyor load theoretical capacity |
| url | https://www.mdpi.com/1996-1073/18/8/2003 |
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