The Energy-Minimization Multi-Scale(EMMS)Method was originally proposed for circulating fluidized *** this study the system is resolved into the liquid phase,the small bubble and the large bubble phases for the gas-li...
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The Energy-Minimization Multi-Scale(EMMS)Method was originally proposed for circulating fluidized *** this study the system is resolved into the liquid phase,the small bubble and the large bubble phases for the gas-liquid systems,and is jointly dominated by two movement tendencies,i.e.,those of small and large bubbles.
Characteristics of turbulent premixed flames of CO/H2/CO 2/O2 mixtures at high pressures of 0.5 MPa were experimentally investigated. Using OH-PLIF images, flame surface density, mean volume of turbulent flame regions...
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Characteristics of turbulent premixed flames of CO/H2/CO 2/O2 mixtures at high pressures of 0.5 MPa were experimentally investigated. Using OH-PLIF images, flame surface density, mean volume of turbulent flame regions and turbulent burning velocity were calculated. Flame surface density, turbulent burning velocity and intensity of flame radiation of CO/H2/CO2/O2 flames are larger than those of CH4/air flames while the mean volume of the turbulent flame region, Vf, of CO/H2/CO2/O 2 flames is smaller than that of CH4/air flames. As the H2 mole fraction increases, turbulent burning velocity and intensity of flame radiation for CO/H2/CO2/O2 flame becomes larger while the mean volume of the turbulent flame region becomes smaller. When the ratio of the H2 mole fraction to that of CO is more than 0.5, Vf and ST/SL of CO/H 2/CO2/O2 flames become almost the same. It is presumed that the effect of H2 concentration is dominant for CO/H2/CO2/O2 flame for high H2 mole fractions.
Ignition delay times of n-butanol/oxygen diluted with argon were measured behind reflected shock waves. Experiments were carried out in the temperature range 1200-1650 K, at 2 and 10 atm, and at equivalence ratios of ...
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Experiments were carried out to study gas-liquid two-phase flow through a horizontally mounted Venturi nozzle. The inner diameter of pipe is 25 mm and the throat diameter of Venturi nozzle is 5. 1 mm. The pressure dif...
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Experiments were carried out to study gas-liquid two-phase flow through a horizontally mounted Venturi nozzle. The inner diameter of pipe is 25 mm and the throat diameter of Venturi nozzle is 5. 1 mm. The pressure difference and pressure loss across the nozzle were measured. It was found that the degree of pressure fluctuation strongly depends on the gas quality. However,the relationship between the standard deviation of pressure difference and the gas quality is not monotonous. Multiple solutions may occur when the relationship was used to determine gas quality. On the other hand,the standard deviation of pressure loss was found to be monotonously correlated to X. This phenomenon was applied to measured gas quality. Also a modified Lin's equation is proposed to calculate the two-phase flow rate. The experimental measurements agree well with the predicted values.
ABO3-based photocatalysts for water splitting were systematically reviewed in this manuscript. Crystal structure and chemical composition characteristics of ABO3materials were briefly introduced to guide the modificat...
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ABO3-based photocatalysts for water splitting were systematically reviewed in this manuscript. Crystal structure and chemical composition characteristics of ABO3materials were briefly introduced to guide the modification of ABOrbased *** ABO3-based photocatalysts were then reviewed in detail and divided into four groups based on the employed modification strategies,i.e.,chemical component adjustment,micro-/nano-structure adjustment,local lattice structure adjustment,and application of the modification strategy of ABO3photocatalysts in designing *** this section,the recent research works on ABOrbased photocatalysts in our group were ***, application of ABO3photocatalysts in Z-scheme systems for overall water splitting was *** review summarized the development of ABOrbased photoaitalysts and showed the values and possible direction of future research,thereby ottering a guide for photocatalytic water splitting.
The transcritical CO2 ejector refrigeration cycle (TERC) is a complex, highly nonlinear and strong coupling system, which is usually very difficult to apply advanced control *** order to solve the problem, a linear dy...
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The transcritical CO2 ejector refrigeration cycle (TERC) is a complex, highly nonlinear and strong coupling system, which is usually very difficult to apply advanced control *** order to solve the problem, a linear dynamic model is *** this paper, a nonlinear model is developed using the traditional methods, firstly.
作者：
Feifei SongFei LiWei WangJinghai LiUniversity of Chinese Academy of Science
Beijing 100049China EMMS GroupState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of ScienceP.O.Box 353Beijing 100190China EMMS Group
State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of ScienceP.O.Box 353Beijing 100190China
Numerical simulations with discrete particle models(DPM)are finding growing applications in optimizing the design and operation of fluidized beds,where the drag plays a very important role.
Numerical simulations with discrete particle models(DPM)are finding growing applications in optimizing the design and operation of fluidized beds,where the drag plays a very important role.
For many centuries, each generation gave to their offspring the same World that they received from their parents. The water in the rivers, seas, and oceans was clear; the forests were free to grow; and nature was empt...
For many centuries, each generation gave to their offspring the same World that they received from their parents. The water in the rivers, seas, and oceans was clear; the forests were free to grow; and nature was empty of garbage. But everything has changed in just the last 250 years: year by year, while standards-of living increased, the Earth became a worse place for living, with less natural resources and more pollution.
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