Mass Transfer Coefficients: how do i calculate kla for oxygen at different agitation rates and different gas flow rates by using the Rate method and integral method?

Kla Test, 1000L bioreactor, pitch impeller blades

Condition: 1.5 LPM Flow, 120 RPM

Time(min) DO%

0.00 5

2.29 15

4.45 25

6.81 35

9.35 45

12.28 55

15.97 65

20.60 75

26.97 85

37.26 95