Industry new

How to verify the influence of Reynolds number Flowmeter offer Imported products

Example
1 known condition
a. Fluid Name: Diesel
b. Fluid temperature: 30 ° C
c. Fluid density: P = 810kglm3
d. Fluid viscosity: u=0.0031Pa. s
e. Pipe inner diameter: D = 0.05m
f. Maximum flow: g,. . ; a 50 rri3/11
2 calculation
a. Maximum mass flow qmrn. Calculation
g. . . := Pq,. . :=11. 25kg/s
b. Reynolds number ReDm at maximum flow rate. Calculation of [using equation (8.2)]
4 qmmax 4×11. 25 l×10 4
R has Dmax one - one one 9.2 2
7c D, u 7c×0.05×o. 0031
c. Calculation of volume flow g, i for each typical flow point
qVz=Rq three ReD, (8.6)
Substituting the Reynolds numbers of typical flow points in Table 8.2 into equations (8.6)
The quantities q, ; are listed in Table 8.3.
Figure 8.6 Calculating the correction factor online
Block diagram
213
Table 8.3 Correction factors for each feature point
┃Flow value qY//(ma/h) ┃ Reynolds number ReDi ┃ Correction factor A ┃Flow value q,i/(rn3/11) ┃
┃ 2. 976 ┃ 5.5×103 ┃ 0. 886 ┃ 10. 823 ┃
┃ 4. 329 ┃ 8. O×103 ┃ 0. 935 ┃ 21. 645 ┃
┃ 6. 494 ┃ 1.2×104 ┃ 0. 964 ┃ 50. 000 ┃
This method can be used to correct errors in low flow sections of liquids that have a higher viscosity than water.

PREVIOUS：Electromagnetic flowmeter online inspection mNEXT：How to correct the Reynolds number through th