Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management
Abstract
:1. Introduction
2. Description of the Ejector Demo Plant
2.1. Description of the Study Site: Cervia, North Italy
2.2. The Ejector Demo Plant of Cervia
3. Materials and Methods
3.1. Ejector Demo Plant Operation and Monitoring
3.2. Analysis of Bathymetries: Water Depth and Sediment Volume Variation over Time
3.3. Analysis of 3-Year Metocean Climate on the Cervia Site
4. Results
4.1. Results of Meteoclimate Analysis
- -
- the most energetic year (E > 1400 m2 h) was during the period 2017–2018, with the higher amount of storm energy in winter (E = 700 m2 h) and then autumn (E = 520 m2 h);
- -
- the following year, 2018–2019, presented the most energetic sea in autumn (E > 600 m2 h);
- -
- the year 2019–2020 was the less energetic one (E ≅ 800 m2 h), with higher amounts of energy in spring (E = 500 m2 h);
- -
- in all the years, small energy values were observed in summer, as expected.
4.2. Analysis of Water Depth Variation before and after Ejector Demo Plant Operation
4.3. Analysis of Volume Variation before and after Ejector Demo Plant Operation
5. Discussion
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Appendix A. Frequency Tables of the Sea Climate
MWD [°N] | Hs [m] | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
<0.50 | 0.50–0.75 | 0.75–1.00 | 1.00–1.25 | 1.25–1.5 | 1.5–1.75 | 1.75–2.00 | 2.00–2.25 | 2.25–2.5 | 2.5–2.75 | 2.75–3 | >3.00 | Total | |
0–15 | 2.43 | 0.36 | 0.10 | 0.03 | 0.01 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.94 |
15–30 | 3.27 | 0.78 | 0.26 | 0.24 | 0.04 | 0.09 | 0.06 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 4.78 |
30–45 | 4.36 | 1.28 | 0.54 | 0.53 | 0.34 | 0.22 | 0.27 | 0.10 | 0.03 | 0.02 | 0.01 | 0.01 | 7.71 |
45–60 | 3.79 | 1.32 | 1.05 | 0.79 | 0.63 | 0.40 | 0.49 | 0.58 | 0.48 | 0.15 | 0.02 | 0.01 | 9.70 |
60–75 | 4.61 | 1.33 | 0.81 | 0.52 | 0.39 | 0.29 | 0.43 | 0.63 | 0.25 | 0.21 | 0.21 | 0.02 | 9.70 |
75–90 | 9.64 | 2.44 | 1.36 | 1.25 | 0.87 | 0.16 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.01 | 15.74 |
90–105 | 16.46 | 3.73 | 1.37 | 0.46 | 0.18 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 22.26 |
105–120 | 10.53 | 1.42 | 0.26 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 12.32 |
120–135 | 2.23 | 0.16 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.45 |
135–150 | 0.54 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 |
150–165 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 |
165–180 | 0.07 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 |
180–195 | 0.15 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 |
195–210 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 |
210–225 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 |
225–240 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 |
240–255 | 0.27 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 |
255–270 | 0.32 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 |
270–285 | 0.68 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.68 |
285–300 | 0.98 | 0.04 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.05 |
300–315 | 1.71 | 0.05 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.78 |
315–330 | 1.69 | 0.03 | 0.06 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.79 |
330–345 | 1.63 | 0.13 | 0.07 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.84 |
345–360 | 2.68 | 0.33 | 0.09 | 0.07 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.18 |
Total | 68.62 | 13.53 | 6.06 | 4.05 | 2.48 | 1.23 | 1.26 | 1.32 | 0.79 | 0.37 | 0.24 | 0.05 | 100 |
MWD [°N] | Hs [m] | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
<0.50 | 0.50–0.75 | 0.75–1.00 | 1.00–1.25 | 1.25–1.5 | 1.5–1.75 | 1.75–2.00 | 2.00–2.25 | 2.25–2.5 | 2.5–2.75 | 2.75–3 | >3.00 | Total | |
0–15 | 3.16 | 0.53 | 0.16 | 0.06 | 0.03 | 0.02 | 0.01 | 0.05 | 0.03 | 0.01 | 0.01 | 0.00 | 4.06 |
15–30 | 4.78 | 1.13 | 0.55 | 0.20 | 0.12 | 0.02 | 0.02 | 0.03 | 0.05 | 0.02 | 0.01 | 0.00 | 6.92 |
30–45 | 4.86 | 1.38 | 0.99 | 0.57 | 0.37 | 0.26 | 0.21 | 0.19 | 0.06 | 0.04 | 0.01 | 0.00 | 8.94 |
45–60 | 5.34 | 1.49 | 1.39 | 0.92 | 0.79 | 0.39 | 0.32 | 0.15 | 0.07 | 0.04 | 0.01 | 0.00 | 10.92 |
60–75 | 5.42 | 1.34 | 1.35 | 1.08 | 0.95 | 0.50 | 0.23 | 0.11 | 0.08 | 0.09 | 0.02 | 0.00 | 11.16 |
75–90 | 6.02 | 1.31 | 0.89 | 0.86 | 0.43 | 0.22 | 0.03 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 9.80 |
90–105 | 9.81 | 2.56 | 1.01 | 0.49 | 0.24 | 0.05 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 14.19 |
105–120 | 5.89 | 0.86 | 0.31 | 0.04 | 0.01 | 0.06 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 7.21 |
120–135 | 3.07 | 0.25 | 0.05 | 0.00 | 0.01 | 0.01 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.40 |
135–150 | 2.21 | 0.10 | 0.02 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.33 |
150–165 | 1.54 | 0.06 | 0.01 | 0.00 | 0.01 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 1.65 |
165–180 | 1.41 | 0.02 | 0.01 | 0.00 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.46 |
180–195 | 1.09 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.13 |
195–210 | 0.73 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 |
210–225 | 0.95 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.96 |
225–240 | 0.84 | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.86 |
240–255 | 0.70 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.71 |
255–270 | 0.95 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.96 |
270–285 | 1.13 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.14 |
285–300 | 1.64 | 0.02 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 | 0.00 | 1.69 |
300–315 | 1.93 | 0.06 | 0.00 | 0.00 | 0.01 | 0.02 | 0.01 | 0.02 | 0.01 | 0.01 | 0.00 | 0.00 | 2.06 |
315–330 | 1.81 | 0.08 | 0.02 | 0.00 | 0.01 | 0.02 | 0.03 | 0.05 | 0.01 | 0.00 | 0.01 | 0.00 | 2.03 |
330–345 | 2.00 | 0.08 | 0.01 | 0.00 | 0.03 | 0.01 | 0.04 | 0.03 | 0.01 | 0.00 | 0.01 | 0.00 | 2.21 |
345–360 | 2.95 | 0.16 | 0.10 | 0.05 | 0.03 | 0.05 | 0.05 | 0.05 | 0.02 | 0.01 | 0.00 | 0.00 | 3.47 |
Total | 70.22 | 11.49 | 6.90 | 4.28 | 3.06 | 1.64 | 1.06 | 0.72 | 0.34 | 0.22 | 0.08 | 0.00 | 100 |
MWD [°N] | Hs [m] | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
<0.50 | 0.50–0.75 | 0.75–1.00 | 1.00–1.25 | 1.25–1.5 | 1.5–1.75 | 1.75–2.00 | 2.00–2.25 | 2.25–2.5 | 2.5–2.75 | 2.75–3 | >3.00 | Total | |
0–15 | 3.27 | 0.41 | 0.09 | 0.03 | 0.03 | 0.01 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 3.86 |
15–30 | 4.40 | 0.55 | 0.17 | 0.10 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.01 | 0.00 | 0.00 | 5.32 |
30–45 | 4.38 | 0.78 | 0.56 | 0.24 | 0.10 | 0.08 | 0.08 | 0.10 | 0.05 | 0.02 | 0.02 | 0.00 | 6.42 |
45–60 | 3.90 | 1.39 | 1.42 | 0.97 | 0.52 | 0.49 | 0.25 | 0.20 | 0.14 | 0.17 | 0.01 | 0.00 | 9.46 |
60–75 | 4.91 | 1.49 | 2.00 | 0.86 | 0.50 | 0.66 | 0.18 | 0.10 | 0.08 | 0.04 | 0.00 | 0.00 | 10.84 |
75–90 | 7.48 | 2.11 | 1.33 | 0.93 | 0.63 | 0.24 | 0.05 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 12.77 |
90–105 | 17.20 | 4.54 | 1.32 | 0.42 | 0.04 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 23.55 |
105–120 | 10.82 | 1.07 | 0.25 | 0.04 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 12.19 |
120–135 | 2.79 | 0.35 | 0.07 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.23 |
135–150 | 0.33 | 0.02 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.37 |
150–165 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 |
165–180 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 |
180–195 | 0.08 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 |
195–210 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 |
210–225 | 0.05 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 |
225–240 | 0.14 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 |
240–255 | 0.28 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.34 |
255–270 | 0.38 | 0.03 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.42 |
270–285 | 0.46 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 |
285–300 | 0.91 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.91 |
300–315 | 1.52 | 0.02 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.55 |
315–330 | 1.78 | 0.03 | 0.02 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.84 |
330–345 | 1.77 | 0.08 | 0.03 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.91 |
345–360 | 3.43 | 0.29 | 0.17 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.92 |
Total | 70.57 | 13.31 | 7.47 | 3.67 | 1.88 | 1.50 | 0.60 | 0.43 | 0.31 | 0.23 | 0.03 | 0.00 | 100 |
Appendix B. Bathymetric Maps of the Study Area
Appendix C. Time Series of the Wave Height with the Timeline of the Realized Surveys and Sediment Movimentation Actions
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Bathymetry ID | Date | Note |
---|---|---|
01 | 13 June 2017 | Realized after dredging (2200 m3 of removed sediments) and 5 days of propellers operation completed in April–June 2017 |
02 | 28 December 2017 | |
03 | 7 April 2018 | |
04 | 11 May 2018 | Realized after 5 days of propeller operation, completed in April 2018 |
05 | 10 October 2018 | |
06 | 10 April 2019 | Realized after 2.5 days of propeller operation and dredging (20,000 m3 of removed sediments), completed in January–April 2019 |
07 | 12 June 2019 | Realized one day before the ejector demo plant was put into in operation |
08 | 6 September 2019 | Ejector demo plant in operation (phase 1, see Figure 6) |
09 | 9 January 2020 | Ejector demo plant in operation (phase 2, see Figure 6) |
10 | 30 April 2020 | Ejector demo plant in operation (phase 3, see Figure 6) |
Class | Storm Energy (m2 h) |
---|---|
I—weak | E ≤ 58.4 |
II—moderate | 58.4 < E ≤ 127.9 |
III—significant | 127.9 < E ≤ 389.7 |
IV—severe | 389.7 < E ≤ 706.9 |
V—extreme | E > 706.9 |
Date | Hs | Tm | Tp | MWD | Compass Sector | dur | E | Class | Level | Level Max |
---|---|---|---|---|---|---|---|---|---|---|
(m) | (s) | (s) | (° N) | (h) | (m2 h) | (m) | (m) | |||
April–June 2017 | Propeller movimentation | |||||||||
13 June 2017 | Bathymetry 01 | |||||||||
6 November 2017 | 2.79 | 5.6 | 8.3 | 61 | I | 19.5 | 89.68 | II—moderate | 0.53 | 0.83 |
13 November 2017 | 3.68 | 6.7 | 9.1 | 59 | I | 50.5 | 302.96 | III—significant | 0.44 | 0.93 |
26 November 2017 | 3.07 | 5.0 | 7.7 | 46 | I | 11 | 50.77 | I—weak | 0.13 | 0.36 |
2 December 2017 | 2.39 | 5.3 | 7.7 | 58 | I | 22 | 86.48 | II—moderate | 0.27 | 0.69 |
28 December 2017 | Bathymetry 02 | |||||||||
3 February 2018 | 2.51 | 5.3 | 8.3 | 55 | I | 9.5 | 36.15 | I—weak | 0.29 | 0.70 |
13 February 2018 | 1.78 | 4.4 | 6.2 | 24 | I | 7 | 20.33 | I—weak | 0.40 | 0.52 |
18 February 2018 | 2.70 | 5.6 | 8.3 | 59 | I | 15 | 70.10 | II—moderate | 0.10 | 0.45 |
24 February 2018 | 3.00 | 6.0 | 8.3 | 75 | I | 67.5 | 331.37 | III—significant | 0.36 | 0.70 |
26 February 2018 | 2.49 | 5.5 | 7.1 | 48 | I | 59 | 248.20 | III—significant | 0.28 | 0.61 |
21 March 2018 | 3.10 | 6.0 | 9.1 | 65 | I | 37 | 182.44 | III—significant | 0.43 | 0.83 |
23 March 2018 | 2.13 | 5.1 | 7.1 | 42 | I | 12.5 | 42.66 | I—weak | 0.38 | 0.72 |
7 April 2018 | Bathymetry 03 | |||||||||
April 2018 | Propeller movimentation | |||||||||
11 May 2018 | Bathymetry 04 | |||||||||
26 August 2018 | 2.00 | 5.1 | 7.7 | 37 | I | 9 | 28.14 | I—weak | 0.27 | 0.53 |
24 September 2018 | 2.75 | 5.8 | 8.3 | 316 | IV | 47 | 188.87 | III—significant | 0.14 | 0.59 |
2 October 2018 | 2.36 | 5.3 | 7.7 | 23 | I | 11.5 | 49.20 | I—weak | 0.32 | 0.40 |
10 October 2018 | Bathymetry 05 | |||||||||
21 October 2018 | 2.76 | 5.6 | 7.1 | 340 | IV | 20 | 73.58 | II—moderate | 0.26 | 0.57 |
29 October 2018 | 2.63 | 6.2 | 9.1 | 46 | I | 16.5 | 75.98 | II—moderate | 0.79 | 1.06 |
17 November 2018 | 2.33 | 5.5 | 7.7 | 44 | I | 34.5 | 121.52 | II—moderate | [a] | [a] |
20 November 2018 | 2.66 | 5.4 | 7.7 | 42 | I | 11.5 | 55.93 | I—weak | [a] | [a] |
27 November 2018 | 2.30 | 5.1 | 6.2 | 66 | I | 16.5 | 53.12 | I—weak | [a] | [a] |
January 2019 | Propeller movimentation | |||||||||
23 February 2019 | 2.84 | 6.1 | 9.1 | 66 | I | 32 | 145.29 | III—significant | −0.39 | 0.04 |
20 March 2019 | 1.89 | 4.8 | 7.1 | 63 | I | 6.5 | 20.10 | I—weak | −0.07 | 0.15 |
26 March 2019 | 3.60 | 6.3 | 8.3 | 38 | I | 7.5 | 67.50 | II—moderate | 0.56 | 0.83 |
4 April 2019 | 1.94 | 6.2 | 9.1 | 82 | I | 8 | 22.13 | I—weak | 0.34 | 0.57 |
March–April 2019 | Dredging sand volume of 20,000 m3 | |||||||||
10 April 2019 | Bathymetry 06 | |||||||||
5 May 2019 | 2.77 | 5.6 | 7.1 | 52 | I | 19.5 | 80.04 | II—moderate | 0.42 | 0.48 |
12 May 2019 | 2.75 | 5.3 | 7.1 | 32 | I | 31 | 143.70 | III—significant | 0.30 | 0.46 |
14 May 2019 | 2.02 | 4.9 | 6.7 | 38 | I | 23.5 | 28.65 | I—weak | 0.07 | 0.14 |
12 January 2019 | Bathymetry 07 | |||||||||
18 January 2019 | Ejectors on | |||||||||
3 September 2019 | 1.85 | 4.8 | 6.7 | 55 | I | 6.5 | 18.8 | I—weak | 0.22 | 0.33 |
6 September 2019 | Bathymetry 08 | |||||||||
3 October 2019 | 2.5 | 5.4 | 7.7 | 28 | I | 9 | 38.4 | I—weak | 0.56 | 0.56 |
17 November 2019 | 1.87 | 6.5 | 9.1 | 83 | I | 7.5 | 22.8 | I—weak | 0.76 | 0.90 |
24 November 2019 | 1.77 | 5.5 | 8.3 | 82 | I | 13.5 | 34.8 | I—weak | 0.55 | 0.68 |
10 December 2019 | 1.75 | 5.1 | 6.7 | 66 | I | 11 | 30.9 | I—weak | 0.20 | 0.20 |
23 December 2019 | [b] | [b] | [b] | [b] | [b] | [b] | [b] | [b] | [b] | 1.0 |
9 January 2020 | Bathymetry 09 | |||||||||
20 January 2020 | 1.73 | 4.7 | 5.9 | 61 | I | 21 | 55.1 | I—weak | 0.12 | 0.13 |
6 February 2020 | 2.54 | 5.3 | 7.1 | 44 | I | 18.5 | 84.1 | II—moderate | −0.05 | 0.19 |
25 March 2020 | 4.05 | 7.8 | 25 | 58 | I | 76.5 | 369.6 | III—significant | −0.13 | 0.25 |
31 March 2020 | 2.24 | 5.2 | 7.1 | 48 | I | 17 | 56.0 | I—weak | 0.16 | 0.18 |
1 April 2020 | 1.88 | 4.7 | 6.2 | 61 | I | 10.5 | 29.9 | I—weak | 0.05 | 0.07 |
14 April 2020 | 2.58 | 5.5 | 7.7 | 59 | I | 16 | 58.5 | I—weak | −0.04 | 0.0 |
30 April 2020 | Bathymetry 10 |
Period | N° of Storms | Energy Released in the Period (m2 h) | Mean Energy Per Day (m2 h/day) |
---|---|---|---|
13 June 2017–28 December 2017 | 4 | 530 | 2.68 |
28 December 2017–7 April 2018 | 7 | 930 | 9.30 |
11 May 2018–10 October 2018 | 3 | 266 | 1.75 |
10 April 2019–12 June 2019 | 4 | 275 | 4.37 |
12 June 2019–6 September 2019 | 1 | 19 | 0.22 |
6 September 2019–9 January 2020 | 4 | 127 | 1.02 |
9 January 2020–30 April 2020 | 6 | 653 | 5.83 |
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Pellegrini, M.; Aghakhani, A.; Gaeta, M.G.; Archetti, R.; Guzzini, A.; Saccani, C. Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management. J. Mar. Sci. Eng. 2021, 9, 197. https://doi.org/10.3390/jmse9020197
Pellegrini M, Aghakhani A, Gaeta MG, Archetti R, Guzzini A, Saccani C. Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management. Journal of Marine Science and Engineering. 2021; 9(2):197. https://doi.org/10.3390/jmse9020197
Chicago/Turabian StylePellegrini, Marco, Arash Aghakhani, Maria Gabriella Gaeta, Renata Archetti, Alessandro Guzzini, and Cesare Saccani. 2021. "Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management" Journal of Marine Science and Engineering 9, no. 2: 197. https://doi.org/10.3390/jmse9020197
APA StylePellegrini, M., Aghakhani, A., Gaeta, M. G., Archetti, R., Guzzini, A., & Saccani, C. (2021). Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management. Journal of Marine Science and Engineering, 9(2), 197. https://doi.org/10.3390/jmse9020197