The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
Zuohua Huang - One of the best experts on this subject based on the ideXlab platform.
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Pressure History in the explosion of moist syngas air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
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Pressure History in the explosion of moist syngas/air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
Yongliang Xie - One of the best experts on this subject based on the ideXlab platform.
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Pressure History in the explosion of moist syngas air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
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Pressure History in the explosion of moist syngas/air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
Johan Herman Hendrik Ter Maat - One of the best experts on this subject based on the ideXlab platform.
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Residual stresses and cracking in large ceramic injection mouldings subjected to different solidification schedules
Journal of The European Ceramic Society, 2000Co-Authors: S Krug, Johan Herman Hendrik Ter MaatAbstract:In ceramic injection moulding, the moulding dimensions and the residual stresses are related to the hold Pressure History during solidification in the cavity. In conventional moulding, the residual stresses are generally compressive at the surface. In this work, an insulated sprue device was made. It allows prolonged Pressure transmission to the moulding and this can result in residual tensile stresses at the surface of thick section mouldings. At very low holding Pressures (
Xiao Cai - One of the best experts on this subject based on the ideXlab platform.
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Pressure History in the explosion of moist syngas air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
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Pressure History in the explosion of moist syngas/air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
Jinhua Wang - One of the best experts on this subject based on the ideXlab platform.
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Pressure History in the explosion of moist syngas air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.
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Pressure History in the explosion of moist syngas/air mixtures
Fuel, 2016Co-Authors: Yongliang Xie, Jinhua Wang, Xiao Cai, Zuohua HuangAbstract:Abstract The Pressure History in the explosion syngas/air mixtures with H 2 O addition over a wide range of equivalence ratios at elevated temperatures was recorded to study the explosion characteristics in a constant volume confined vessel. CO mole fractions in syngas are from 0.5 to 0.95, initial temperatures are from 373 K to 473 K, and H 2 O addition ratios are from 0 to 30%. The explosion parameters such as explosion Pressure, explosion time, maximum rate of Pressure rise, and deflagration index are obtained from the experiment. Effects of the equivalence ratio, initial temperature, CO/H 2 ratio and dilution ratio on the explosion parameters are examined. These parameters are important input properties for evaluation of hazards of the explosion and the design the combustion vessel. In addition, the adiabatic explosion Pressure is also calculated assuming the flame propagation is a constant-volume and adiabatic process. Results show the experimentally determined normalized explosion Pressure and the normalized adiabatic explosion Pressure show different trends with the increase of CO/H 2 ratio. The experimental determined normalized explosion Pressure decreases but normalized adiabatic explosion Pressure increases with the increase of CO/H 2 ratio in the syngas mixture. This is mainly because the heat loss is larger for the mixture with a higher CO/H 2 ratio. At last, the heat loss during the combustion process was calculated by the difference between experimental and adiabatic explosion Pressure. With the addition of CO dilution ratio in the mixture, the amount of heat loss transferred to the wall heat loss to the unit area increases greatly.