Table 2.
Calculated parameters of propulsion system, based on the operating parameters recorded during passenger vessel sailing with ON and OFF ALS.
Probe No. | ALS State | ALS Power Consumption |
1 Propeller Power Distribution |
2 Fuel Consumption Difference |
Fuel Consumption Difference |
3 Propeller Power Difference |
4 Summary Propulsion Power Difference |
5 Average Speed Difference |
---|---|---|---|---|---|---|---|---|
- | - | [MW] | [%] | [kg/h] | [%] | [MW] | [MW] | [kn] |
- | - | A | B | C | D | E | F | G |
6 | off | 69% | ||||||
7 | on | 0.47 | 68% | 97 | 0,8 | 0.3 | −0.17 | 0.3 |
9 | on | 0.51 | 66% | −0.31 | ||||
10 | off | 69% | −107 | -0.9 | −0.3 | −0.30 | 0.1 | |
16 | off | 71% | −1.30 | |||||
17 | on | 0.47 | 70% | 125 | 1.0 | 0,7 | 0.23 | 0.1 |
19 | on | 0.51 | 69% | −0.51 | ||||
20 | off | 70% | −68 | -0.6 | −0.1 | −0.10 | −0.2 | |
22 | off | 71% | 0 | 1.0 | 1.00 | |||
23 | on | 0.51 | 68% | 75 | 0,6 | 0.5 | −0.01 | −0.1 |
24 | on | 0,51 | 69% | −0.71 | ||||
25 | off | 69% | 299 | 2.4 | −0.6 | −0.60 | 0.0 | |
26 | off | 78% | −2.10 | |||||
27 | on | 0.35 | 77% | 237 | 1.7 | −0.3 | −0.65 | −0.4 |
28 | off | 72% | −0.10 | |||||
29 | on | 0.48 | 69% | 20 | 0.2 | 0.8 | 0.32 | −0.4 |
30 | on | 71% | −101 | −0.8 | −0.2 | −0.20 | 0.0 | |
31 | on | 0.63 | 69% | 146 | 1.2 | 0.6 | −0.03 | −0.1 |
32 | off | 68% | −95 | −0.8 | 0.3 | 0.30 | −0.1 | |
33 | off | 71% | −0.60 | |||||
34 | on | 0.46 | 69% | 189 | 1.5 | 0.0 | −0.46 | 0.0 |
37 | on | 0.46 | 68% | −0.36 | ||||
38 | off | 70% | −102 | −0.8 | −0.3 | −0.30 | −0.1 |
1 Propeller Power distribution-the part of total power produced on the vessel used for propulsion purposes. 2 Fuel consumption difference-difference of fuel consumption when ALS is ON or OFF. 3 Propeller Power difference-difference of propeller power consumption before and after start ALS. 4 Summary Propulsion Power difference-difference of propulsion purpose power consumption before and after start ALS. 5 Average speed difference-difference of ship speed before and after start ALS.