Correlation of Power Consumption for Several Kinds of Mixing Impellers

Table 4

Correlation equations of power number for helical ribbon (g).

𝑁𝑃0={[1.2𝜋^4𝛽^2]/[8𝑑^3/(𝐷^2𝐻)]}𝑓=16.0𝑓
𝑓=𝐶𝐿/Re𝐺+𝐶𝑡{[(𝐶𝑡𝑟/Re𝐺)+Re𝐺]^−1+(𝑓∽/𝐶𝑡)^1/𝑚}^𝑚
Re𝑑=𝑛𝑑^2𝜌/𝜇
Re𝐺={[𝜋𝜂ln(𝐷/𝑑)]/(4𝑑/𝛽𝐷)}Re𝑑=0.0388Re𝑑
𝐶𝐿=1.00,𝐶𝑡=0.100,𝑚=0.333,𝐶𝑡𝑟=2500
𝑓∽=0.00683
𝛽=2ln(𝐷/𝑑)/[(𝐷/𝑑)−(𝑑/𝐷)]=0.999
𝜂=0.538