Climate change mitigation with clean energy: a case study on the potential of solar photovoltaic power plants in eastern Iran

Islam, Babak Shaikh Baikloo; Sokhansefat, Tahmineh

doi:10.1007/s12517-022-11131-0

Cited by 2 publications

(1 citation statement)

References 72 publications

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“…Coveted clean power such as photovoltaic and wind power remains up in the air, and the shortage of electricity in the hot summer has prompted attention to the reliable mining of coal for thermal power [1]. Hydraulic cylinder is a critical height control device, and whose sealing performance directly related to operational stability and efficiency of shearer [2].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Cu-doped Diamond-like Carbon Film for Improving Sealing Performance of Hydraulic Cylinder of Shearer

Shi,

Ye,

et al. 2023

Preprint

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During shearer operation, piston rod is susceptible to wear from invasion of pollutants, and then ruins sealing ring in hydraulic cylinder. This work attempts to conduct a systematical investigation of Cu-DLC (Cu-doped Diamond-like Carbon) film to improve the seal performance. Failure process of hydraulic cylinder was analyzed, and relevant parameters were determined. Several Cu-DLC films were deposited on the substrate of piston rod in a multi-ion beam assisted system, and their structures and combined tribological performances were investigated. As a result, dust particles attached to the piston rod may enter the cylinder, and damage the sealing ring under the radial force. Cu grains prefer to orientate (111) crystal plane with increase of Cu content, and may induce drop of hardness and internal stress for the film. Friction coefficient of the film ranges from 0.04 to 0.15, and rise of IG/ID ratio from 1.4 to 2.3 in Raman data indicates that bond transition from sp3-C to sp2-C may lower the friction coefficient. Modification mechanism of Cu-DLC film for the seal performance may come from synergistic effects of (i) contact force and friction heat induce the film graphitization, (ii) Cu doping improves toughness of the film and acts as a solid lubricant, and (iii) transfer layer plays a role of self-lubrication.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Cu-doped Diamond-like Carbon Film for Improving Sealing Performance of Hydraulic Cylinder of Shearer

Shi,

Ye,

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Fabrication of Cu-Doped Diamond-like Carbon Film for Improving Sealing Performance of Hydraulic Cylinder of Shearers

Yang,

Yu,

Zhao

et al. 2024

View full text Add to dashboard Cite

During shearer operation, the piston rod is susceptible to wear from the invasion of pollutants, thus ruining the sealing ring in the hydraulic cylinder. This work attempts to conduct a systematic investigation of Cu-doped diamond-like carbon (Cu-DLC) film to improve the seal performance. The failure process of the cylinder was analyzed, and relevant parameters were determined. Several Cu-DLC films were deposited on the substrate of the piston rod in a multi-ion beam-assisted system, and their structures and combined tribological performances were investigated. The hardness of the film ranges from 27.6 GPa to 14.8 GPa, and the internal stress ranges from 3500 MPa to 1750 MPa. The steady-state frictional coefficient of the film ranges from 0.04 to 0.15; the wear rate decreases first and then increases, and it reaches its lowest (5.0 × 10−9 mm3/N·m) at 9.2 at.% content. a:C-Cu9.2% film presents optimal combined tribological performances in this experiment. The modification mechanism of Cu-DLC film for the seal performance may come from the synergistic effects of (i) the contact force and friction-heat-induced film graphitization, (ii) Cu doping improves the toughness of the film and acts as a solid lubricant, and (iii) the transfer layer plays a role in self-lubrication.

show abstract

Climate change mitigation with clean energy: a case study on the potential of solar photovoltaic power plants in eastern Iran

Cited by 2 publications

References 72 publications

Fabrication of Cu-doped Diamond-like Carbon Film for Improving Sealing Performance of Hydraulic Cylinder of Shearer

Fabrication of Cu-doped Diamond-like Carbon Film for Improving Sealing Performance of Hydraulic Cylinder of Shearer

Fabrication of Cu-Doped Diamond-like Carbon Film for Improving Sealing Performance of Hydraulic Cylinder of Shearers

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