Energy losses in contractions for the ice slurry considered as the Bingham fluid

International Conference on the Sustainable Energy and Environmental Development

生态环境科学

Mika, L.^1 ; Solek, M.^2

AGH University of Science and Technology, Faculty of Energy and Fuels, Department of Thermal and Fluid Flow Machines, Mickiewicza Av. 30, Krakow

30-059, Poland^1

Cracow University of Technology, Institute of Thermal and Process Engineering, Faculty of Mechanical Engineering, al. Jana Pawla II 37, Kraków

31-864, Poland^2

关键词: Bingham fluid;    Energy correction;    Experimental investigations;    Experimental research;    Loss coefficients;    Mass fraction;    Non-Newtonian fluids;    Solid particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/214/1/012057/pdf
DOI  :  10.1088/1755-1315/214/1/012057

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The paper presents the results of the experimental investigations on ice slurry energy losses and loss coefficients during its flow through contractions. Six contraction ratios were covered: 0.500, 0.615, 0.650, 0.769, 0.800 and 0.813. In the experimental research, the mass fraction of solid particles in the slurry ranged from 5% to 30% (5%, 10%, 15%, 20%, 25%, 30%). The average size of ice crystals (width/length) 0.1/0.15 mm was used in the experimental studies. The ice slurry is a non-Newtonian fluid. The presented experimental studies allow for determining the theoretical correlations for the ice slurry considered as a Bingham fluid in order to calculate the loss coefficients in contractions during laminar flow. The correlation for calculating the kinetic energy correction factor in the laminar range flow of liquid in the Bingham model was used in this work. The results of experimental research also confirmed that the loss coefficients in contractions in turbulent flow of the ice slurry are the same as in the case of Newtonian liquids.