Journal
ENERGIES
Volume 16, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/en16114399
Keywords
electro-mobility; electromechanical; diesel; LHD; underground mining
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In this study, the performance of an electro-mechanical powertrain for underground-loader equipment was analyzed using field data. The proposed electric model consumed 60.5% less energy than the diesel loader under the same operational conditions. This methodology provides a valuable tool for evaluating the energy efficiency of electric loaders based on current operational data.
In underground mining, conventional loader equipment uses diesel as a power source, implying different drawbacks, such as combustion gases, low visibility, worker's health problems, and high ventilation requirements. Thus, hybrid and electric loaders are being developed by the main industry suppliers who prefer clean technology. In this study, we analyzed the performance of an electro-mechanical powertrain through a dynamic model of underground-loader equipment using field data. This electric LHD model was compared to a diesel loader under the same operational conditions. For the case study, the results showed that the proposed electro-mechanical model, considering 14 tons of capacity, consumed 86.8 kWh, representing 60.5% less energy than the diesel loader with similar speed and torque characteristics. Thus, the proposed methodology is a valuable tool for operators, process engineers, and decision-makers, allowing an energy-efficiency evaluation for electric LHD adoption, based on the current operational data available for conventional equipment.
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