A laboratory scale jet flotation column system was designed and air inflation for flotation column was provided by jet aerator with a chamber. In order to understand interior flow field distribution of jet aerator and flotation column, two-phase turbulent flow model was established by use of commercial computational fluid dynamics (CFD) software FLUENT 6.3.26. Modeling of the flow field was firstly established with GAMBIT 2.3.16; standard k-ε turbulence model and multiphase flow model MIXTURE were adopted for gas-liquid two-phase numerical simulation about jet aerator and flotation column. The simulation results show that gas-liquid two-phase mixing have been established by the cavity entrainment vortex flow in jet aerator with a chamber, and the distortion was really occurred although the reversed cone feed inlet have been designed, at the same time non-uniform distribution of air-bubble was also simulated. Simulation results can help to optimize the structure of the jet flotation column.
This paper mainly discusses the mathematical model of the solar cell and it I-V characteristic curve equation , discusses the the relationship between parameters. When changes of light intensity and temperature,We uesed measured value for the reference data , the value of ,,,are tested in 25°C,1000W/m2 the battery is the 3909 battery of Suntech. Then we given the Calculate value of ,,,in 25°C,800W/m2, 200W/m2. We uesed measured value for the reference data , the value of ,,,are tested in1000W/m2, 30°C, the battery is the 4209 battery of Suntech. then we given the Calculate value of ,,,in 40°Cand60°C. Finally ,we analysised the change of the four parameters with light intensity and temperature changes, it shows that the calculation results is consistent with the test data. It can reflect the relationship between I-V characteristic and the changes of light intensity and temperature. This study will help us to give the I-V characteristic and data directly , also help us to study solar cell easyly in any environment
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