- Tytuł:
- Effect of elevated pressure on gas-solid flow properties in a powder feeding system
- Autorzy:
-
Ren, Guanlong
Sun, Haijun
Xu, Yihua
Li, Chao - Powiązania:
- https://bibliotekanauki.pl/articles/2174817.pdf
- Data publikacji:
- 2022
- Wydawca:
- Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
- Tematy:
-
Powder engine
Pressure effect
Dense gas-solid two-phase flow
Euler-Euler two-fluid model
Numerical simulation - Opis:
- In view of the powder feeding system, a multi-physical coupling model of the gas-powder-piston was established based on the Euler-Euler two-fluid model. The numerical simulation method was applied to explore the effects of dense gas-solid flow characteristics under different operating pressures. The results show that gas-solid pulsations at different operating pressures are mainly concentrated in the upper part of the powder tank. An elevated operating pressure efficiently decreases the powder layer area (εp = 0.1) fluctuation. As the operating pressure increases from 0.5 MPa to 3.0 MPa, the rising time and fluctuation rate of pressure are reduced by 71.4% and 62.3%, respectively, and the pressure in the tank has a long stabilization period. Meanwhile, the variation of the instantaneous powder flow rate is more stable and its average value is closer to the theoretical. A high-pressure environment is more conducive to the stable transportation of powder.
- Źródło:
-
Polish Journal of Chemical Technology; 2022, 24, 3; 41--52
1509-8117
1899-4741 - Pojawia się w:
- Polish Journal of Chemical Technology
- Dostawca treści:
- Biblioteka Nauki
Artykuł