Electro-Mechanical Modeling and Evaluation of Electric Load Haul Dump Based on Field Measurements

Gabriel Freire, Guillermo Ramirez, René Gómez (), Krzysztof Skrzypkowski () and Krzysztof Zagórski
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Gabriel Freire: Centro de Energía, Faculty of Engineering, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
Guillermo Ramirez: Centro de Energía, Faculty of Engineering, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
René Gómez: Faculty of Engineering, Universidad de Concepción, Concepción 4030000, Chile
Krzysztof Skrzypkowski: Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Kraków, Poland
Krzysztof Zagórski: Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Mickiewicza 30 Av., 30-059 Kraków, Poland

Energies, 2023, vol. 16, issue 11, 1-17

Abstract: 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.

Keywords: electro-mobility; electromechanical; diesel; LHD; underground mining (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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