Retrofitting Vessel with Solar and Wind Renewable Energy Sources as an Example of the Croatia Study-Case
Abstract
:1. Introduction
- feff(i)—availability factor of individual energy efficiency technology,
- Peff(i)—main engine power reduction due to individual technology for mechanical energy efficiency,
- CFME—CO2 emissions main engine composite fuel factor,
- SFCME—specific fuel consumption main engine (composite).
2. Literature Review
3. Materials and Methods
3.1. Proposed RES Method
3.2. Observed Vessel
3.3. Solar Energy Application
3.4. Wind Energy Application
- −
- rated power: 10 kW,
- −
- maximum power: 12 kW,
- −
- rated voltage: 240/380 V,
- −
- weight: 368 kg,
- −
- propeller diameter 6.55 m,
- −
- number of wings: 3,
- −
- height of column: 9 m,
- −
- lifespan: 20 years.
3.5. Schematic Diagram of the Proposed Power System
3.6. Experimental Setup
4. Results
4.1. Solar Energy Potential
4.2. Wind Energy Potential
5. Discussion
5.1. Croatia Case-Study Area
5.2. Simulation Results
- Phase 0–15 s:
- Phase 15–30 s:
- Phase 30–45 s:
5.3. Solar and Wind Energy Comparison
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Technology | Ref. | Methodology | Results | Fuel Sav. |
---|---|---|---|---|
Wind- Kites | [24] | Performance test of Skysails kite is conducted on a general Cargo ship | Up to 2 MW of power can be generated under favorable wind conditions | 10–15% |
Wind- Kites | [25] | Analytical model for towing kite Performance evaluation | Tanker with 320 m2 towing kite, the model showed 10% of fuel savings on a 10 m/s wind speed and up to 50% savings at a 15.6 m/s wind speed | 10–50% |
Wind- Rotor sails | [26] | Experimental tests on the Cargo ship “Enercon E-ship” | On the voyage between Germany and Portugal, fuel consumption was decreased by 23% | 23% |
Wind- Rotor sails | [27] | Sea trials on Ro-Ro Carrier “Estraden” retrofitted with rotor sails | Sea trials showed 2.6% fuel savings with only one rotor, after installing the second rotor trials showed 6.1% fuel savings | 2.6–6.1% |
Wind- Rotor sails | [28] | Experimental tests on the bulk carrier m/v Afros | Estimated savings evaluated by a third party organization were 12.5 | 12.5% |
Wind- Rotor sails | [28] | Experimental tests on the bulk carrier m/v Axios | The annual savings are projected to be 12% | 12% |
Wind-Rotor sails | [29] | Model evaluation for Flettner rotor on a very large ore carrier | Estimated that this technology would be able to achieve an efficiency of up to 8% | 8% |
Wind-Rotor sails | [30] | Evaluations from the long-term test on board of MV Fehn Pollux | Savings in the range of 10–25% can be expected, depending on the speed of the ship and main engine performance | 10–25% |
Wind-Rotor sails | [31] | Performance test is conducted on a Maersk Pelican tanker | On certain routes, during the trial, the vessel achieved fuel savings way beyond the average of 8.2% even with average wind conditions. | 8.2% |
PV modules | [32] | Experimental tests on the Car carrier Auriga Leader | The solar power system produced 1% of its electrical usage | <1% |
PV modules | [33] | Experimental tests on the Car carrier Berge K2 | About 100 kW of electrical energy is fed into the main electrical grid | - |
PV modules | [34] | Performance test is conducted on a passenger ferry Blue Star Delos | PV technology and energy storage provide a continuous stable supply of a DC load | - |
PV modules | [35] | Performance test Kawasaki Drive Green Highway | About 150 kW of electrical energy generated from PV modules contributes to other measures to reduce 25% or more of CO2 emissions | - |
PV modules | [36] | Experimental test on vehicle carrier COSCO Tengfei | 540 PV cells are installed on a ship with a maximum output power of 143.1 kW under standard conditions | - |
No. | Consumer | Power | No. | Consumer | Power |
---|---|---|---|---|---|
1. | ME pre-lubrication pump electric motor | 0.65 kW | 9. | Electric winch motor | 4.04 kW |
2. | General service electric pump motor | 10 kW | 10. | Rotary converter for radio devices | 0.9 kW |
3. | Fuel transfer pump motor | 3.65 kW | 11. | Static converter | 1.5 kW |
4. | Bilge pump electric motor | 1.84 kW | 12. | Three-phase transformer | 25 kW |
5. | Air compressor electric motor | 11.2 kW | 13. | Single-phase transformer | 3 kW |
6. | Freshwater pump electric motor | 0.73 kW | 14. | Silicon rectifier | 1 kW |
7. | Engine room fan motor | 0.55 kW | 15. | Electric stove | 14.5 kW |
8. | Electric windlass motor | 11 kW | 16. | Rotary converter 220 V | 10 kW |
In total | 99.56 kW |
No. | Name | Price per Unit | Total Procurement Costs | Maintenance Costs (Period of 25 Years) | Total Costs |
---|---|---|---|---|---|
1. | PV panel Nature power Rigid 200W [41] | 440 | 24,640 | 280 | 24,920 |
2. | Battery Trojan Spre 12,225 Ah (three sets) [46] | 517 | 31,020 | 270 | 31,290 |
3. | Converter IMEON 9.12 [47] | 4359 | 4359 | 700 | 5059 |
4. | Installations | 2000 | 2000 | 400 | 2400 |
In total | 62,019 | 1650 | 63,669 |
No. | Name | Price per Unit | Total Procurement Costs | Maintenance Costs (Period of 25 Years) | Total Costs |
---|---|---|---|---|---|
1. | L-10kW Generator and Blade | 3867 | 7734 | 1300 | 9034 |
2. | Controller and load-dump | 657 | 1314 | 300 | 1614 |
3. | Full Sine-wave Converter | 1256 | 2512 | 600 | 3112 |
4. | Guy Wire Tower | 749 | 1498 | 300 | 1798 |
5. | Production of foundations and cable trays | 6700 | 6700 | 250 | 6950 |
6. | Battery Spre 12, 225 Ah (three sets) [46] | 518 | 31,020 | 270 | 31,290 |
7. | Installations | 1300 | 1300 | 400 | 1700 |
In total | 52,078 | 3420 | 55,498 |
Months | Annual | MIN | MAX | AVERAGE | MEDIAN | STD | |
---|---|---|---|---|---|---|---|
Number of sun hours | Rijeka | 2205 | 99 | 298 | 184 | 166 | 68 |
Mali Lošinj | 2574 | 99 | 357 | 215 | 200 | 90 | |
Zadar | 2567 | 109 | 350 | 214 | 197 | 84 | |
Split | 2630 | 130 | 347 | 219 | 201 | 78 | |
Hvar | 2733 | 124 | 366 | 228 | 210 | 85 | |
Dubrovnik | 2670 | 124 | 347 | 223 | 198 | 85 | |
Min | 2205 | ||||||
Max | 2733 | ||||||
AVG | 2563 | ||||||
STD | 186 |
Location | (m/s) | |
---|---|---|
Basic wind speed | Rijeka | 25.8 |
Mali Lošinj | 25.6 | |
Zadar | 22.9 | |
Split | 25.4 | |
Hvar | 25.7 | |
Dubrovnik | 25.2 |
Pearson Correlation Coefficients | Rijeka | Mali Lošinj | Zadar | Hvar | Split | Dubrovnik |
---|---|---|---|---|---|---|
Rijeka | 1 | |||||
Mali Lošinj | 0.994 | 1 | ||||
Zadar | 0.996 | 0.999 | 1 | |||
Hvar | 0995 | 0.999 | 0.999 | 1 | ||
Split | 0.996 | 0.997 | 0.998 | 1000 | 1 | |
Dubrovnik | 0.964 | 0.971 | 0.975 | 0.975 | 0.975 | 1 |
Parameter/Type of Energy | Solar Energy | Wind Energy |
---|---|---|
Total investment (€) | 63,669 | 55,498 |
Price of energy produced, (€/kWh) | 0.191 | 0.115 |
Installation | Moderately demanding | Complicated |
Impact on ship stability and maritime features | Minimal | Unfavorable, especially with strong side wind gusts |
Impact on living and working conditions on board | Almost negligible | Extremely unfavorable |
Savings in diesel fuel consumption over a period of 25 years, (l) | 111,556 | 170,274 |
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Peša, T.; Krčum, M.; Kero, G.; Šoda, J. Retrofitting Vessel with Solar and Wind Renewable Energy Sources as an Example of the Croatia Study-Case. J. Mar. Sci. Eng. 2022, 10, 1471. https://doi.org/10.3390/jmse10101471
Peša T, Krčum M, Kero G, Šoda J. Retrofitting Vessel with Solar and Wind Renewable Energy Sources as an Example of the Croatia Study-Case. Journal of Marine Science and Engineering. 2022; 10(10):1471. https://doi.org/10.3390/jmse10101471
Chicago/Turabian StylePeša, Tomislav, Maja Krčum, Grgo Kero, and Joško Šoda. 2022. "Retrofitting Vessel with Solar and Wind Renewable Energy Sources as an Example of the Croatia Study-Case" Journal of Marine Science and Engineering 10, no. 10: 1471. https://doi.org/10.3390/jmse10101471