The Experts below are selected from a list of 117 Experts worldwide ranked by ideXlab platform
Yan Wang - One of the best experts on this subject based on the ideXlab platform.
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Variation and Prediction Methods of the Explosion Characteristic Parameters of Coal Dust/Gas Mixtures
Energies, 2021Co-Authors: Xiangyang Gan, Yan WangAbstract:In order to investigate the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas, and then establish an effective prediction method of these parameters, the maximum Explosion pressure, Explosion index, and lower Explosion limit of coal dust and gas mixtures were measured in a standard 20 L spherical Explosion system. Four different kinds of hybrid mixture were selected in this study and they are composed of coal dust with different components and gas respectively. According to the measured results, the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas was analyzed, and the prediction method of these parameters was discussed. The results show that the addition of gas to a coal dust cloud can obviously increase its maximum Explosion pressure and Explosion index and notably reduce its minimum Explosion concentration. On increasing the gas equivalent ratio, the maximum Explosion pressure of coal dust and gas mixture increases linearly and the Explosion index increases quadratically, while the decrease curve of the lower Explosion limit is nonlinear. Based on these change laws, the methods for predicting the maximum Explosion pressure and the Explosion index of hybrid mixture of coal dust and gas were established respectively. The applicability of the existing methods for predicting the lower Explosion limit of hybrid mixture to coal dust and gas mixture was demonstrated.
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variation and prediction methods of the Explosion Characteristic parameters of coal dust gas mixtures
Energies, 2021Co-Authors: Xiangyang Gan, Yan WangAbstract:In order to investigate the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas, and then establish an effective prediction method of these parameters, the maximum Explosion pressure, Explosion index, and lower Explosion limit of coal dust and gas mixtures were measured in a standard 20 L spherical Explosion system. Four different kinds of hybrid mixture were selected in this study and they are composed of coal dust with different components and gas respectively. According to the measured results, the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas was analyzed, and the prediction method of these parameters was discussed. The results show that the addition of gas to a coal dust cloud can obviously increase its maximum Explosion pressure and Explosion index and notably reduce its minimum Explosion concentration. On increasing the gas equivalent ratio, the maximum Explosion pressure of coal dust and gas mixture increases linearly and the Explosion index increases quadratically, while the decrease curve of the lower Explosion limit is nonlinear. Based on these change laws, the methods for predicting the maximum Explosion pressure and the Explosion index of hybrid mixture of coal dust and gas were established respectively. The applicability of the existing methods for predicting the lower Explosion limit of hybrid mixture to coal dust and gas mixture was demonstrated.
Xiangyang Gan - One of the best experts on this subject based on the ideXlab platform.
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Variation and Prediction Methods of the Explosion Characteristic Parameters of Coal Dust/Gas Mixtures
Energies, 2021Co-Authors: Xiangyang Gan, Yan WangAbstract:In order to investigate the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas, and then establish an effective prediction method of these parameters, the maximum Explosion pressure, Explosion index, and lower Explosion limit of coal dust and gas mixtures were measured in a standard 20 L spherical Explosion system. Four different kinds of hybrid mixture were selected in this study and they are composed of coal dust with different components and gas respectively. According to the measured results, the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas was analyzed, and the prediction method of these parameters was discussed. The results show that the addition of gas to a coal dust cloud can obviously increase its maximum Explosion pressure and Explosion index and notably reduce its minimum Explosion concentration. On increasing the gas equivalent ratio, the maximum Explosion pressure of coal dust and gas mixture increases linearly and the Explosion index increases quadratically, while the decrease curve of the lower Explosion limit is nonlinear. Based on these change laws, the methods for predicting the maximum Explosion pressure and the Explosion index of hybrid mixture of coal dust and gas were established respectively. The applicability of the existing methods for predicting the lower Explosion limit of hybrid mixture to coal dust and gas mixture was demonstrated.
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variation and prediction methods of the Explosion Characteristic parameters of coal dust gas mixtures
Energies, 2021Co-Authors: Xiangyang Gan, Yan WangAbstract:In order to investigate the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas, and then establish an effective prediction method of these parameters, the maximum Explosion pressure, Explosion index, and lower Explosion limit of coal dust and gas mixtures were measured in a standard 20 L spherical Explosion system. Four different kinds of hybrid mixture were selected in this study and they are composed of coal dust with different components and gas respectively. According to the measured results, the change law of the Explosion Characteristic parameters of hybrid mixture of coal dust and gas was analyzed, and the prediction method of these parameters was discussed. The results show that the addition of gas to a coal dust cloud can obviously increase its maximum Explosion pressure and Explosion index and notably reduce its minimum Explosion concentration. On increasing the gas equivalent ratio, the maximum Explosion pressure of coal dust and gas mixture increases linearly and the Explosion index increases quadratically, while the decrease curve of the lower Explosion limit is nonlinear. Based on these change laws, the methods for predicting the maximum Explosion pressure and the Explosion index of hybrid mixture of coal dust and gas were established respectively. The applicability of the existing methods for predicting the lower Explosion limit of hybrid mixture to coal dust and gas mixture was demonstrated.
Chuanjie Zhu - One of the best experts on this subject based on the ideXlab platform.
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Explosion Characteristics of nano-aluminum powder–air mixtures in 20L spherical vessels
Powder Technology, 2011Co-Authors: Baiquan Lin, Cheng Zhai, Chuanjie ZhuAbstract:Abstract Using 20 L spherical Explosion vessel, the Explosion Characteristics of nano-aluminum powders with different sizes were investigated. Compared with micro-scale aluminum powders Explosion, nano-powders Explosion processes and mechanisms were analyzed based on the auxiliary analysis of scanning electron microscopy (SEM) and X-Ray diffraction (XRD). The results show that the maximum Explosion pressure and maximum rate of pressure rise mainly depended on the dust concentrations. With the increasing of dust concentration, the maximum Explosion pressure increases gradually to the maximum when the dust concentrations below 1000 g/m3 and then the maximum Explosion pressure decreased especially for the dust concentrations higher about 1250 g/m3. At the same time, the trends of maximum rate of pressure rise performed the similar rules with the dust concentrations. For the selected nano-powders, particle size change seems no obvious Explosion differences. However, for micro-sized aluminum powders, Explosion Characteristic presents decreased change rules with the particle size increase. At the same time, the lower Explosion concentration limits of aluminum powders Explosion were measured and presented. Research result may have important implications for nano-sized aluminum powders utilization and safety operation.
Baiquan Lin - One of the best experts on this subject based on the ideXlab platform.
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Explosion Characteristics of nano-aluminum powder–air mixtures in 20L spherical vessels
Powder Technology, 2011Co-Authors: Baiquan Lin, Cheng Zhai, Chuanjie ZhuAbstract:Abstract Using 20 L spherical Explosion vessel, the Explosion Characteristics of nano-aluminum powders with different sizes were investigated. Compared with micro-scale aluminum powders Explosion, nano-powders Explosion processes and mechanisms were analyzed based on the auxiliary analysis of scanning electron microscopy (SEM) and X-Ray diffraction (XRD). The results show that the maximum Explosion pressure and maximum rate of pressure rise mainly depended on the dust concentrations. With the increasing of dust concentration, the maximum Explosion pressure increases gradually to the maximum when the dust concentrations below 1000 g/m3 and then the maximum Explosion pressure decreased especially for the dust concentrations higher about 1250 g/m3. At the same time, the trends of maximum rate of pressure rise performed the similar rules with the dust concentrations. For the selected nano-powders, particle size change seems no obvious Explosion differences. However, for micro-sized aluminum powders, Explosion Characteristic presents decreased change rules with the particle size increase. At the same time, the lower Explosion concentration limits of aluminum powders Explosion were measured and presented. Research result may have important implications for nano-sized aluminum powders utilization and safety operation.
Cheng Zhai - One of the best experts on this subject based on the ideXlab platform.
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Explosion Characteristics of nano-aluminum powder–air mixtures in 20L spherical vessels
Powder Technology, 2011Co-Authors: Baiquan Lin, Cheng Zhai, Chuanjie ZhuAbstract:Abstract Using 20 L spherical Explosion vessel, the Explosion Characteristics of nano-aluminum powders with different sizes were investigated. Compared with micro-scale aluminum powders Explosion, nano-powders Explosion processes and mechanisms were analyzed based on the auxiliary analysis of scanning electron microscopy (SEM) and X-Ray diffraction (XRD). The results show that the maximum Explosion pressure and maximum rate of pressure rise mainly depended on the dust concentrations. With the increasing of dust concentration, the maximum Explosion pressure increases gradually to the maximum when the dust concentrations below 1000 g/m3 and then the maximum Explosion pressure decreased especially for the dust concentrations higher about 1250 g/m3. At the same time, the trends of maximum rate of pressure rise performed the similar rules with the dust concentrations. For the selected nano-powders, particle size change seems no obvious Explosion differences. However, for micro-sized aluminum powders, Explosion Characteristic presents decreased change rules with the particle size increase. At the same time, the lower Explosion concentration limits of aluminum powders Explosion were measured and presented. Research result may have important implications for nano-sized aluminum powders utilization and safety operation.
