Model parameters

Tank 1 (1 Axial impeller)

(PMSR model)

Tank 2 (2 axial impellers) (PMSE model)

Tank 3 (2 radial impellers)

(P MSE model)

Tank 4

(no impeller) (PMSE model)

Tau1 (min)

5.0

--

--

--

Tau2 (min)

1

--

--

--

J1 (-)

2.1

--

--

--

J2 (-)

1

--

--

--

α (-)

0.13

--

--

--

Cum. tact (min)

--

9.5

17.2

22.8

tm (min)

--

3.8

11.4

1

J (-)

--

2.8

3.2

3.7

k (-)

--

0.36

0.15

0.1

Per tank MRTtotal, t ¯ (min)

5.7

7.3

6.9

5.3

Per tank variance, σ2 (min2)

40.4

80.7

66.3

27.6