Comparative study on the economy of hybrid mining trucks for open‐pit mining

Jin, Chun; Yi, Tong; Shen, Yanhua; Khajepour, Amir; Meng, Qingyong

doi:10.1049/iet-its.2018.5085

Cited by 17 publications

(12 citation statements)

References 17 publications

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“…Based on the above thermodynamic and heat transfer model, this section introduces the working cycle of mining trucks. It also analyzes the thermal characteristics of IHESS (parameters are given in Table 1) in the actual and simplified cycle with the cited dynamic model (Chun, et al, 2019) corresponding to the target vehicle, a 110 t HMT (specifications are given in Table 1), as well as the influence of the system structure and working condition parameters. Finally, a feasible energy-saving thermal design is put forward and its efficiency is analyzed.…”

Section: Resultsmentioning

confidence: 99%

“…Because of the restrictions of the current battery technology (Kantharaj, et al, 2015;Aziz, et al, 2018), Jin Chun et al (2019) explored different research routes of ESSs other than battery ESS. In the article, we carry out a comparative study of four ESS applications on HMTs: battery ESS, supercapacitor ESS, hydraulic ESS, and compressed-air ESS.…”

Section: Literature Reviewmentioning

confidence: 99%

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Investigation on Thermal Characteristics of the Oil-Circulating Hydraulic Energy Storage System for Hybrid Mining Trucks

Jin

et al. 2021

Front. Energy Res.

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The improved hydraulic energy storage system (IHESS) is a novel compact hydraulic ESS with only 10% of oil and 64.78% of installation space of the regular ones. However, its novel circulating structure and lightweight material result in poor heat dissipation. The thermodynamic and heat transfer model of IHESS with an oil-circulating layout is proposed. Based on the mining trucks’ dynamic model, thermal characteristics of IHESSs with different parameters under the actual and simplified working conditions are studied and the factors causing overheating are analyzed. Finally, a feasible thermal design is put forward, and its efficiency is analyzed. The simulation shows that more accumulators and higher recovery power lead to higher system temperature and vice versa. Under the standard simplified working condition at 40°C ambient temperature, the highest oil temperature reached is 93.13°C. About 90% of the generated heat is converted into the internal energy of nitrogen and oil. On this basis, by adopting an energy-saving passive cooling system with a cooling power of 6.68 kW, the highest temperature of the oil drops to 52.79°C and 28% of the generated heat is released through the cooling system.

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Section: Resultsmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Investigation on Thermal Characteristics of the Oil-Circulating Hydraulic Energy Storage System for Hybrid Mining Trucks

Jin

et al. 2021

Front. Energy Res.

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“…According to the above total internal volume of all accumulators and the compression ratio range, the number of nitrogen tanks can be set from 4 to 8, as shown in Equation (5). 12,13,14,15,16, 17} N ac ∈ {8, 9, 10, 11, 12, 13, 14} N at ∈ {4, 5, 6, 7, 8} .…”

Section: Multi-objective Optimization Problemmentioning

confidence: 99%

“…Meanwhile, high-power charging or discharging at low temperatures will accelerate the degradation of the battery [12], resulting in a high cost of the hybrid mining truck with a battery ESS [13]. Considering the shortcomings of the current battery, Chun et al [15] explore alternative technique routes beyond battery ESS. They propose a comparative study of hybrid mining trucks with different ESSs.…”

Section: Introductionmentioning

confidence: 99%

Nested Optimization of Oil-Circulating Hydro-Pneumatic Energy Storage System for Hybrid Mining Trucks

Jin

Gao

et al. 2021

Machines

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In order to recover and utilize the potential energy of mining trucks efficiently, this paper proposes a nested optimization method of a novel energy storage system. By analyzing the multi-objective optimization problem of the oil-circulating hydro-pneumatic energy storage system, a nested optimization method based on the advanced adaptive Metamodel-based global optimization algorithm is carried out. Research shows that this method only requires a short time to solve the complex nonlinear hybrid optimization problem and achieves better results. The optimized energy storage system has higher system efficiency, energy density, and volume utilization rate, thus obtaining a smaller system volume and weight. Verified by the bench experiment of its powertrain, the hydro-pneumatic hybrid mining truck with the optimized energy storage system significantly reduces its fuel consumption and CO₂ emission. Thus, it lays the foundation for the practical application of hydro-pneumatic hybrid mining trucks.

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“…Various hybridization concepts without ERS have also been investigated, e.g., in [12][13][14][15]. Boliden AB has tested using an electric road for mining trucks in its Aitik open pit mine and is now planning large-scale implementation of the system [16].…”

Section: Introductionmentioning

confidence: 99%

Drive-Cycle Simulations of Battery-Electric Large Haul Trucks for Open-Pit Mining with Electric Roads

et al. 2022

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Transport of ore and overburden in open-pit mines is often performed with large haul trucks. Battery-electric operation of haul trucks can significantly reduce the CO2 emissions and the fossil fuel dependence of open-pit mining. This simulation study investigates the feasibility and economy of operating large haul trucks battery-electrically, charging from an electric road system in the form of overhead trolley lines. The used simulation model is verified against measurements on diesel-electric haul trucks in normal operation. The simulation model is then tested with five drive cycles representing typical operations in the Aitik copper mine in northern Sweden. This simulation study shows that battery-electric operation with an electric road is feasible. It is shown that battery-electric operation is much cheaper than diesel-electric operation under reasonable assumptions. It is also much cheaper than diesel-electric operation assisted by an electric road.

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Comparative study on the economy of hybrid mining trucks for open‐pit mining

Cited by 17 publications

References 17 publications

Investigation on Thermal Characteristics of the Oil-Circulating Hydraulic Energy Storage System for Hybrid Mining Trucks

Investigation on Thermal Characteristics of the Oil-Circulating Hydraulic Energy Storage System for Hybrid Mining Trucks

Nested Optimization of Oil-Circulating Hydro-Pneumatic Energy Storage System for Hybrid Mining Trucks

Drive-Cycle Simulations of Battery-Electric Large Haul Trucks for Open-Pit Mining with Electric Roads

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