1) second critical fluidization velocity
第二临界流化速度
2) first critical fluidization velocity
第一临界流化速度
1.
Based on the original definition of the critical fluidization velocity, a mathematical model was proposed to predict the first critical fluidization velocity.
从流化床临界流化速度的定义出发,得出了振动流化床第一临界流化速度数学模型。
3) Minimum fluidization velocity
临界流化速度
1.
The fluidization behavior of glass beads is investigated in superheated steam fluidized bed with a cone shape and the bottom diameter of 120mm for research about the influences of operating temperature and pressure on minimum fluidization velocity(um f).
在底部直径为120 mm的锥型流化床中,以玻璃珠为流化颗粒,过热蒸汽为流化介质,研究了固体颗粒在过热蒸汽流化床中的流化特性,考察了操作温度和压力对临界流化速度(umf)的影响。
2.
The influences of temperature and particle size on the minimum fluidization velocity and the influence of temperature on the particle size distribution were observed by pressure-drop method according to the abnormal fluidization of bimodal polyethylene sticky particles in the combined process of loop reactor and fluidized bed.
针对环管和流化床串联的组合工艺中双峰聚乙烯黏性颗粒流化状况不佳的现状,利用压差法系统考察了温度和粒径对临界流化速度的影响,以及温度对粒径分布的影响。
4) fluidizing velocity
临界流态化速度
5) minimum fluidizing velocity
临界流化速度
1.
First of all,coal and biomass distribution of particle size on the determination of the minimum fluidizing velocity of the test method,and the minimum fluidizing velocity of the test stand measuring lean coal blending ratio in all the minimum fluidizing velocity.
因此,测定生物质混煤的临界流化速度,探讨循环流化床内生物质混煤燃烧过程中硫氮氧化物的析出规律,以控制污染物排放,实现煤的高效洁净燃烧对于实际生产有着十分重要的意义。
2.
When cotton stalk and bed material are well mixed, the minimum fluidizing velocity can be achieved by experiment.
并通过实验求得此工况下床层的临界流化速度。
6) critical speed of second order
第二临界转速
补充资料：临界速度（criticalvelocities）
临界速度（criticalvelocities）
参见“朗道超流的唯象理论”，vc=ε/p≈Δ/p0。按此所得vc约60m/s。但实验上又测得约10m/s或更小，而通常乃至只有几个mm/s至几个cm/s。这个矛盾认为是由出现涡旋乃至大量涡旋形成湍流态而引起的。考虑这个因素，费因曼计算了狭缝宽为d时的`v_c\approx(\hbar//md)ln(d//a_0)`，这里m为氦原子质量，a0≈0.12nm，$\hbar$为除以2π的普朗克常数，按此所得vc约10-1m/s量级。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条