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Author Carrasco, M.; Alvarez, F.; Velazquez, R.; Concha, J.; Perez-Cotapos, F. doi  openurl
  Title Brush-Holder Integrated Load Sensor Prototype for SAG Grinding Mill Motor Type
  Year 2019 Publication Electronics Abbreviated Journal Electronics  
  Volume 8 Issue 11 Pages 14 pp  
  Keywords electrical motor sensor; SAG grinding mill motor; inspection protocol; mining industry  
  Abstract One of the most widely used electro-mechanical systems in large-scale mining is the electric motor. This device is employed in practically every phase of production. For this reason, it needs to be inspected regularly to maintain maximum operability, thus avoiding unplanned stoppages. In order to identify potential faults, regular check-ups are performed to measure the internal parameters of the components, especially the brushes and brush-holders. Both components must be properly aligned and calibrated to avoid electric arcs to the internal insulation of the motor. Although there is an increasing effort to improve inspection tasks, most inspection procedures are manual, leading to unnecessary costs in inspection time, errors in data entry, and, in extreme cases, measurement errors. This research presents the design, development, and assessment of an integrated measurement prototype for measuring spring tension and other key parameters in brush-holders used in electric motors. It aims to provide the mining industry with a new, fully automatic inspection system that will facilitate maintenance and checking. Our development research was carried out specifically on the brush system of a SAG grinding mill motor. These machines commonly use SIEMENS motors; however, the instrument can be easily adapted to any motor by simply changing the physical dimensions of the prototype.  
  Address [Carrasco, Miguel; Concha, Javier; Perez-Cotapos, Francisco] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Av Diagonal Las Torres 20700, Santiago 7941169, Chile, Email: miguel.carrasco@uai.cl;  
  Corporate Author Thesis  
  Publisher Mdpi Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2079-9292 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000502269500023 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 1066  
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Author Nasirov, S.; Agostini, C.A. pdf  doi
openurl 
  Title Mining experts' perspectives on the determinants of solar technologies adoption in the Chilean mining industry Type
  Year 2018 Publication Renewable & Sustainable Energy Reviews Abbreviated Journal Renew. Sust. Energ. Rev.  
  Volume 95 Issue Pages 194-202  
  Keywords Mining industry; Energy challenges; Solar energy; Chile  
  Abstract The energy demand in Chile arises mostly from mining, its largest industry that accounts for about 35% of total electricity consumption. Energy generation to satisfy this demand depends completely on imported fossil fuels. As a result, the mining industry faces several energy related challenges. In particular, the cost and environmental impact of fuel sources are threatening the competitiveness of the industry and urge for new developments. In that regard, the importance of using clean and cost-competitive renewable energy sources has increased significantly in Chile and several government policies helped to increase the investment in them. The impact has been particularly large in the development of solar energy in the northern part of the country, where almost all mines are located. In fact, the country has become one of the largest solar markets in Latin America thanks to its abundant solar resources, favorable market conditions, and successful policy reforms. Solar energy then, could play a significant role as an alternative to satisfy the mining industry's energy demand offering a broad range of technological solutions. This study examines the key issues – barriers and drivers-influencing the adoption of solar technologies in the Chilean mining industry from the perspective of mining actors. As a result of the analysis the paper also provides a scope for appropriate policy interventions.  
  Address [Nasirov, Shahriyar] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Ave Diagonal Torres 2640, Santiago 7941169, Chile, Email: shahriyar.nasirov@uai.cl;  
  Corporate Author Thesis  
  Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1364-0321 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000441614300013 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 894  
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Author Parrado, C.; Girard, A.; Simon, F.; Fuentealba, E. pdf  doi
openurl 
  Title 2050 LCOE (Levelized Cost of Energy) projection for a hybrid PV (photovoltaic)-CSP (concentrated solar power) plant in the Atacama Desert, Chile Type
  Year 2016 Publication Energy Abbreviated Journal Energy  
  Volume 94 Issue Pages 422-430  
  Keywords LCOE; PV; CSP; Mining industry; Solar resource; Hybrid  
  Abstract This study calculates the LCOE (Levelized Cost of Energy) on the PSDA (Atacama Solar Platform) for a solar-solar energy mix with the objective of evaluate new options for continuous energy delivery. LCOE was calculated for three 50 MW (megawatt) power plants: A PV (photovoltaic), a CSP (concentrated solar power) plant with 15 h TES (thermal energy storage) and a hybrid PV-CSP plant constituted with 20 MWp of PV and 30 MW of CSP with 15 h TES. Calculations present two scenario projections (Blue Map and Roadmap) until 2050 for each type of plant. Due to the huge solar resource available in northern Chile, the PV-CSP hybrid plant results to be a feasible option for electricity generation, as well as being effectively able to meet electricity demand profile of the mining industry present in the area. This type of energy could mitigate long-term energy costs for the heavy mining activity, as well as the country CO2 emissions. Findings point out that PV-CSP plants are a feasible option able to contribute to the continuous delivery of sustainable electricity in northern Chile. Moreover, this option can also contribute towards electricity price stabilization, thus benefiting the mining industry, as well as reducing Chile's carbon footprint. (C) 2015 Elsevier Ltd. All rights reserved.  
  Address [Parrado, C.; Fuentealba, E.] Univ Antofagasta, CDEA, Ave Univ, Antofagasta 02800, Chile, Email: cristobal.parrado@uantof.cl  
  Corporate Author Thesis  
  Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0360-5442 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000370111300035 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 591  
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