Determination of the optimal equipment fleet for overburden stripping operation in a surface coal mine with discrete event simulation

Aytaç, Şahabettin Mert
Coal has a significant role in energy production, which is an essential factor in sustainable development. Overburden removal and coal production capacities have to be increased to provide sufficient amount and quality of coal continuously to thermal power plants to meet the increasing energy demand. In this study, discrete event simulation was implemented to determine the optimum equipment fleet for overburden removal operation in a surface coal mine. According to the long-term plan prepared by the company that provided data, the annual production rate was targeted to be increased significantly for ten consecutive years between 2021 and 2030. The foreseen amount of increase in overburden material led to the necessity of investigating whether this capacity can be met by utilizing conventional load-haul equipment. The fuel usage of haul trucks was investigated to determine the environmental impact of the production schedule by means of carbon dioxide emissions as well. Through this study, a preliminary model of the dispatch algorithm was developed, and the production of a surface coal mine was simulated for each year with the GPS data collected on-site. HAULSIM® 3D haulage simulation software was used to create the production models. The simulated dispatch model contains the road network, excavation site, dumpsite, and ancillary facilities of a surface coal mine in Turkey. Each production year was simplified to be represented by a shorter duration of operation days. After each model was run, simulation model results indicated that a traffic congestion might occur in some areas due to blockage of the trucks. A new mine plan and road network were designed to solve this issue, and the new models were re-evaluated to determine the required number of trucks to meet the planned production. Environmental impacts of the mining equipment were investigated through this study by comparing fuel consumption data of trucks utilized for previous and current mine plans. As a result of the study, it was proven that the new mine plan and new road network helped to solve the traffic issue by increasing the production rate by 26% for the year 2024, 6% for the year 2025, 33% for the year 2026, 23% for the year 2028 and 3% for the year 2030. It is suggested that a fleet management system is implemented to provide real-time data related to the production and the machine health of mobile equipment. By eliminating traffic congestions, the required number of trucks decreased 27% in traffic congestion areas by the aid of the new mine plan and road design. The collected data could be used to better represent the current operation by simulation and the development of business intelligence tools for continuous improvement.


Identification of waste management strategies and waste generation factors for thermal power plant sector wastes in Turkey
Demir, Cansu; Yetiş, Ülkü; Ünlü, Kahraman (SAGE Publications, 2019-03-01)
Thermal power plants are of great environmental importance in terms of the huge amounts of wastes that they produce. Although there are process-wise differences among these energy production systems, they all depend on the logic of burning out a fuel and obtaining thermal energy to rotate the turbines. Depending on the process modification and the type of fuel burned, the wastes produced in each step of the overall process may change. In this study, the most expected process and non-process wastes stemming ...
Discrete event simulation of a shearer performance for a longwall operation
Yılmaz, Enver; Karpuz, Celal; Erkayaoğlu, Mustafa; Department of Mining Engineering (2018)
Coal is an essential part of energy generation worldwide and has a major role in sustainable development. The amount of coal that can be extracted by surface mining is getting less which makes efficient underground mining operations crucial for both local and global economy. Underground coal mining is considered as a risky industry with a requirement of high amount of equipment investment. The majority of the investment in underground coal mines is generally related with the capital cost of initial equipmen...
Evaluating the use of satellite-based precipitation estimates for discharge estimation in ungauged basins
Soytekin, Arzu; Akyürek, Sevda Zuhal; Department of Civil Engineering (2010)
For the process of social and economic development, hydropower energy has an important role such as being renewable, clean, and having less impact on the environment. In decision of the hydropower potential of a study area, the preliminary condition is the availability of the gages in the area. However, in Turkey, the gages in working order are limited and getting decreased in recent years. Therefore, the satellite based precipitation estimates has been gaining importance to predict runoff for ungauged basi...
Assessing the effects of wind farms on soil organic carbon.
Pekkan, Ozge Isik; Şenyel Kürkçüoğlu, Müzeyyen Anıl; Cabuk, Saye Nihan; Aksoy, Talha; Yilmazel, Burcu; Kucukpehlivan, Tuncay; Dabanli, Ahmet; Cabuk, Alper; Cetin, Mehmet (Springer Science and Business Media LLC, 2021-01-06)
Wind energy is considered one of the cleanest and most sustainable resources among renewable energy sources. However, several negative environmental impacts can be observed, unless suitable sites are selected for the establishment of wind farms. The aim of this study is to determine the change in the soil organic carbon (SOC) stock resulting from land cover changes that were caused by wind farm establishments in the Karaburun peninsula. Within the scope of the study, remote sensing and geographic informatio...
Design of Electrical Submersible Pump system in geothermal wells: A case study from West Anatolia, Turkey
Aydın, Hakkı; Merey, Şükrü (Elsevier BV, 2021-5-12)
Geothermal is defined as one of the renewable and sustainable energy sources. The sustainability of geothermal wells is highly dependent on the pressure drive mechanism and non-condensable gas (NCG) content of the produced geothermal fluid. Pressure decline and decline of non-condensable gases are commonly observed in geothermal production wells, which is unfavorable for wells’ lifetime. Electrical Submersible Pumps (ESP) are one of the solutions for extending the lifetime of geothermal wells. In this study...
Citation Formats
Ş. M. Aytaç, “Determination of the optimal equipment fleet for overburden stripping operation in a surface coal mine with discrete event simulation,” M.S. - Master of Science, Middle East Technical University, 2021.