analyze the influence with the coefficient K and index n in the Winter Kennedy flow rate formula on the flow rate measurement.The uncertainty values of n and K are a key reason for the differences between the curves obtained from the efficiency test and the curves provided by the manufacturer...
The CFD calculations including the spiral case are then used to analyze the influence with the coefficient and index in the Winter Kennedy flow rate formula on the flow rate measurement. The uncertainty values of and are a key reason for the differences between the curves obtained from the ...
Using the specific speed formula, a turbine designed to deliver 100,000 horsepower (74,600 kilowatts) with a head of 40 feet (12.2 metres) operating at 72 revolutions per minute would have a specific speed of 226, suggesting a propeller or Kaplan turbine. It can also be shown that the ...
美 英 un.涡轮性能 英汉 网络释义 un. 1. 涡轮性能
The CFD calculations including the spiral case are then used to analyze the influence with the coefficient K and index n in the Winter Kennedy flow rate formula on the flow rate measurement. The uncertainty values of n and K are a key reason for the differences between the curves obtained ...
Calculation Formula: *F(Hz)= 200*flow rate(Q)(l/min) *1L=12000Hz, *Error:±5% for both formula; What is the formula and how to use the formula? Features: 1. Food grade POM (polyformaldehyde) material, environmental friendly material, small, flexible and functional. 2. Intubation desig...
Ø Using advanced ultra-low power consumption single chip microcomputer technology, the whole machine has strong function, low power consumption and superior performance. The accuracy of the correction formula is better than ± 0.02%; Ø The instrument coefficient can be set online by the key, ...
One drawback of the formula is that it is almost impossible to relate the transition and other functions to specific effects such as damping of turbulence, change of bed forms, supercritical conditions, pressure fluctuations and armouring. Nevertheless, it remains a very useful tool for the ...
Schematic diagram of tower model calculation formula. 2.4 Numerical method In SOWFA, the control equations are solved by the finite volume method (FVM), where all variables are arranged side by side on the grid centroids and linear from the grid center to the face interpolation, which is simila...
The hydraulic efficiency of a turbine (let pelton turbine) is given by - (power developed by runner or shaft power)/(water power) shaft power is - (mass flow rate)*(Vw1+Vw2)*u water power is - density*g*Q*H My question is that the pressure head is converted into kinetic energy ...