GUEMES ISLAND FERRY REPLACEMENT Propulsion Arrangement PREPARED FOR: BY: Skagit County Public Works Andrew L. Girdler, PE PROJECT ENGINEER Mt. Vernon, Washington CHECKED: William L. Moon III, PE PROJECT MANAGER APPROVED: David W. Larsen, PE PRINCIPAL-IN-CHARGE DOC: REV: FILE: DATE: 17097.02-245-01 - 17097.02 19 June 2019
Background The existing Guemes Island ferry, M/V Guemes, has two azimuthing propulsors with one located on each end, off centerline (one port, one starboard). Skagit County has indicated that the existing machinery arrangement on M/V Guemes has several drawbacks. The first issue is that the existing machinery is located above deck. Although this arrangement offers more accessibility to the equipment, it takes up valuable useable space for passengers and vehicles and does not offer the same level of protection from the environment as a below deck machinery space, requiring more effort to preserve the equipment. Additionally, the off- centerline location of the thrusters makes them vulnerable to making contact with dolphins or fenders as the vessel rolls. And lastly, the asymmetric arrangement causes the vessel to yaw when one propeller is working harder than the other, thereby forcing the operator to counteract this moment by adjusting the direction of the propulsors. This commentary led to the development of the arrangement of the 32-car ferry concept with one azimuthing propulsor on each end, on centerline. The depth of the hull at centerline permits the units to be installed below deck. Stakeholders of the Guemes Island ferry have expressed that their most critical concern is vessel reliability. With a two-propulsor arrangement, ferry service is interrupted when one propulsion unit is inoperable. This necessitates a rigorous maintenance schedule to mitigate the risk of unit failure. To address these concerns, Skagit County directed Glosten to investigate a four-unit option to determine the most preferred arrangement.
Propulsion Arrangements Glosten enlisted Schottel to develop two concept proposals for the 28-car variant: one two-unit arrangement similar to the concept vessel, and one four-unit arrangement with two units on each end, one port side and one starboard side. A four-unit arrangement is more reliable due to inherent redundancy; if one unit is offline then the vessel can still maneuver and perform in a normal manner provided the weather is benign. If a unit is offline in the two-unit arrangement, the vessel can still transit without much impact but maneuverability for docking is severely compromised. The two-unit arrangement would consist of two SRP 260 nozzled thrusters (1.65m diameter propellers) installed on the vertical axis normal to baseline and on vessel centerline with no fairing or hull modifications required. Replacing units could be achieved dockside with a simple vertical pick through a hatch in the main deck.
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement 1 Job 17097.02, Rev (–)
The four-unit arrangement would consist of four SRP 150 nozzled thrusters (1.1m diameter propellers) each installed roughly 4 meters outboard of centerline, port and starboard. Schottel proposed modifying the hull shape to make the hull sections fuller at the ends to accommodate the units. This would likely have an adverse effect on resistance, especially in waves, and may cause the propellers to ventilate at light drafts with vessel rolling. In addition, the units would be installed with a 4° angle off vertical longitudinally and transversely. This off-axis arrangement would make installations and removals more challenging. The proposed arrangements are shown in Appendix A, listed as FER0103_2 and FER0103_3. A significant hull redesign effort would be required if the four-unit arrangement were chosen. As an alternative to the proposed four-unit hullform, Glosten could explore maintaining a similar hull form as the two-unit arrangement and adding appendages to house the propulsor units. This detail may permit the units to be installed in a vertical arrangement but would introduce more complexity in the hull fabrication.
Performance and Cost A comparison of power demand and lifecycle costs was performed for the two arrangements. Preliminary calculations for speed/power predictions and capital costs were provided by Schottel for both arrangements (see Appendix B and C). Note, the aforementioned expected increase in resistance of the modified hull for the four-unit arrangement was not included in the speed/power predictions. A maintenance schedule and associated costs were provided for the two-unit option (see Appendix D). Bollard thrust prediction calculations were developed by Glosten from the propeller curves provided by Schottel. See Table 1 below for a summary: Table 1 Propulsion units power and cost comparison Capital cost Total pushing Option Power at cruise (propulsion units Maintenance cost3 power at dock1 only) Two-unit 598 kW 302 kW2 $939,000 $66,900 ($673,000 plus ($48,300 parts plus $266,000 for one spare) $18,600 labor)
Four-unit 615 kW 328 kW2 $1,080,000 $67,000 ($916,000 plus ($29,800 parts plus $164,000 for one spare) $37,200 labor4) 1To develop the predicted maximum bollard thrust of 21 kips for MV Guemes at 620 kW. 2Thrust and power shared evenly among all units. 3Over 15 years. 4Assume labor is constant per unit and that cost of parts scales linearly with respect to capital cost. The propulsion efficiency of the two arrangements was compared at cruising speed and in bollard pull conditions (i.e. pushing the dock). The four-unit arrangement is less efficient than the two-unit arrangement with a daily difference in average energy consumption of 8% assuming the current operating profile. The increased energy consumption and peak power demand of the four-unit arrangement will likely increase the annual electrical operating cost by roughly $12,000 (10%). In addition to the propulsion units, the four-unit arrangement will require two additional propulsion motor drives and will also likely require two additional inverters and larger battery storage capacity on shore and on the vessel, due to the higher energy demand. The costs of these units are not included in Table 1, but are estimated to add roughly $300,000 to the capital cost,
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement 2 Job 17097.02, Rev (–)
with additional lifecycle costs as well due to the increased cost of replacing the larger batteries. The additional components will also inherently introduce more complexity into the system architecture. Furthermore, it is expected that either of the hullform modification options to accommodate the four-unit arrangement will increase the vessel’s power demand. The fuller hull option will increase the predicted power demand by an estimated 10%, and the concept hull with appendages by an estimated 5%. This increase in power demand will require a larger battery bank for both the shoreside charging station and the vessel, and will introduce further lifecycle cost increases.
Conclusions The four-unit propulsion arrangement would be more operable due to overall redundancy in propulsors, but would come with increased costs and complexity. The four-unit system would have more parts and more structure, increasing the capital costs, maintenance costs, and operating costs, in addition to making the vessel more complex and difficult to build. Access to the four units would be restricted since the hull is shallower outboard due to the deadrise.
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement 3 Job 17097.02, Rev (–)
Appendix A Propulsor Arrangement
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement Study A-1 Job 17097.02, Rev (–)
Appendix B Speed/Power Prediction
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement Study B-1 Job 17097.02, Rev (–)
SCHOTTEL GmbH & Co KG PRELIMINARY Mainzer Straße 99 Project-No.: FER-170103-01 70% 30% FOR INFORMATION ONLY D-56322 Spay/Rhein Code: Skagit Ferry Project K / 10K / h = f (J) Date: 16.05.19 T Q 0 0,8 Name: L. Müller 0,7 Rt from designer Comment: 0,6
Typ: SCD nozzle propulsion coeff. predicted 0,5
Model: 260 0,4
Reduction Ratio: 3,071 Mech. Losses: 0,97 0,3
Input Revolutions: 1100 RPM Water Density: 1025,9 kg/m³ 0,2 SF1.0-Torque: 8912 Nm Sea Margin: 0 % 0,1 Number of Units: 2 Design Speed: 11,5 kn 0,0 0,4 0,5 0,6 0,7 0,8 0,9 Propeller Diameter: 1650 mm Design RPM: 533 RPM
Aft-Unit Bow-Unit Aft-Unit Bow-Unit Total
VS / [kn] RT / [kN] RTSM / [kN] PE / [kW] TAft / [%] wT / [-] t [-] hRot / [-] wT / [-] t [-] hRot / [-] TUnit / [kN] TUnit / [kN] TUnit / [kN] 8,0 19,7 19,7 81,1 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 15,9 6,2 22,1 9,0 25,4 25,4 117,6 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 20,5 7,9 28,5 9,5 28,7 28,7 140,4 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 23,2 9,0 32,2 10,0 32,7 32,7 168,2 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 26,4 10,2 36,7 10,5 37,1 37,1 200,3 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 30,0 11,6 41,6 11,0 42,0 42,0 237,7 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 33,9 13,1 47,1 11,5 47,8 47,8 282,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 38,3 15,3 53,6 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 12,0 54,4 54,4 335,8 70,0 -0,020 0,080 1,000 0,020 0,180 1,000 43,6 17,5 61,0 Aft Unit Bow Unit Power Distr. -1 -1 VS / [kn] VA / [m/s] nP / [s ] J / [-] KT / [-] 10KQ / [-] hSRP / [-] VA / [m/s] nP / [s ] J / [-] KT / [-] 10KQ / [-] hSRP / [-] PAft / [%] 8,0 4,20 3,392 0,750 0,182 0,383 0,567 4,03 2,786 0,877 0,104 0,305 0,478 69 9,0 4,72 3,832 0,747 0,184 0,385 0,568 4,54 3,142 0,875 0,106 0,306 0,481 69 9,5 4,98 4,060 0,744 0,185 0,386 0,568 4,79 3,324 0,873 0,107 0,308 0,483 70 10,0 5,25 4,301 0,739 0,188 0,389 0,569 5,04 3,511 0,870 0,109 0,310 0,488 70 10,5 5,51 4,547 0,734 0,191 0,391 0,570 5,29 3,701 0,867 0,111 0,312 0,492 70 11,0 5,77 4,800 0,729 0,194 0,394 0,570 5,55 3,895 0,863 0,114 0,315 0,497 70 11,5 6,03 5,058 0,723 0,197 0,397 0,571 5,80 4,111 0,855 0,119 0,320 0,507 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70 12,0 6,30 5,337 0,715 0,201 0,401 0,571 6,05 4,319 0,849 0,123 0,324 0,513 70
VS nP nInput Q MInput PInput SF nP nInput Q MInput PInput SF PTotal [kn] [min-1] [min-1] [kNm] [kNm] [kW] [-] [min-1] [min-1] [kNm] [kNm] [kW] [-] [kW] 8,0 204 625 5,5 1,9 121 0,21 167 513 3,0 1,0 54 0,11 175 9,0 230 706 7,1 2,4 176 0,27 189 579 3,8 1,3 77 0,14 253 9,5 244 748 8,0 2,7 210 0,30 199 612 4,3 1,4 92 0,16 302 10,0 258 792 9,0 3,0 251 0,34 211 647 4,8 1,6 109 0,18 360 10,5 273 838 10,1 3,4 299 0,38 222 682 5,4 1,8 129 0,20 427 11,0 288 884 11,4 3,8 354 0,43 234 718 6,0 2,0 151 0,23 505 11,5 303 932 12,7 4,3 417 0,48 247 757 6,8 2,3 181 0,26 598 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 12,0 320 983 14,3 4,8 496 0,54 259 796 7,6 2,5 212 0,29 708 SCHOTTEL GmbH & Co KG PRELIMINARY Mainzer Straße 99 Project-No.: FER-170103-01 60% 40% FOR INFORMATION ONLY D-56322 Spay/Rhein Code: Skagit Ferry Project K / 10K / h = f (J) Date: 14.05.19 T Q 0 0,8 Name: L. Müller 0,7 Rt from designer Comment: 0,6
Typ: SCD nozzle propulsion coeff. predicted 0,5
Model: 150 0,4
Reduction Ratio: 2,4375 Mech. Losses: 0,97 0,3
Input Revolutions: 1300 RPM Water Density: 1025,9 kg/m³ 0,2 SF1.0-Torque: 3300 Nm Sea Margin: 0 % 0,1 Number of Units: 4 Design Speed: 11,5 kn 0,0 0,4 0,5 0,6 0,7 0,8 0,9 Propeller Diameter: 1100 mm Design RPM: 533 RPM
Aft-Unit Bow-Unit Aft-Unit Bow-Unit Total
VS / [kn] RT / [kN] RTSM / [kN] PE / [kW] TAft / [%] wT / [-] t [-] hRot / [-] wT / [-] t [-] hRot / [-] TUnit / [kN] TUnit / [kN] TUnit / [kN] 8,0 19,7 19,7 81,1 60,0 0,060 0,080 1,000 0,055 0,340 1,000 7,3 4,8 24,1 9,0 25,4 25,4 117,6 60,0 0,060 0,080 1,000 0,055 0,340 1,000 9,4 6,1 31,1 9,5 28,7 28,7 140,4 60,0 0,060 0,080 1,000 0,055 0,340 1,000 10,6 6,9 35,2 10,0 32,7 32,7 168,2 60,0 0,060 0,080 1,000 0,055 0,340 1,000 12,1 7,9 40,0 10,5 37,1 37,1 200,3 60,0 0,060 0,080 1,000 0,055 0,340 1,000 13,7 9,0 45,4 11,0 42,0 42,0 237,7 60,0 0,060 0,080 1,000 0,055 0,340 1,000 15,5 10,2 51,4 11,5 47,8 47,8 282,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 17,6 11,6 58,5 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,1 13,2 66,6 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,1 13,2 66,6 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,1 13,2 66,6 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,1 13,2 66,6 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,0 13,3 66,7 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,0 13,3 66,7 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,0 13,3 66,7 12,0 54,4 54,4 335,8 60,0 0,060 0,080 1,000 0,055 0,340 1,000 20,0 13,3 66,7 Aft Unit Bow Unit Power Distr. -1 -1 VS / [kn] VA / [m/s] nP / [s ] J / [-] KT / [-] 10KQ / [-] hSP / [-] VA / [m/s] nP / [s ] J / [-] KT / [-] 10KQ / [-] hSP / [-] PAft / [%] 8,0 3,87 5,325 0,660 0,171 0,327 0,549 3,89 4,853 0,729 0,135 0,294 0,531 60 9,0 4,35 6,019 0,657 0,173 0,329 0,550 4,38 5,479 0,726 0,136 0,295 0,533 60 9,5 4,59 6,378 0,655 0,174 0,330 0,550 4,62 5,802 0,724 0,137 0,296 0,534 60 10,0 4,84 6,759 0,650 0,176 0,332 0,550 4,86 6,140 0,720 0,140 0,298 0,536 60 10,5 5,08 7,148 0,646 0,179 0,334 0,550 5,10 6,485 0,716 0,142 0,301 0,537 60 11,0 5,32 7,545 0,641 0,181 0,336 0,550 5,35 6,848 0,710 0,145 0,303 0,540 60 11,5 5,56 7,972 0,634 0,185 0,339 0,550 5,59 7,222 0,704 0,148 0,307 0,542 60 12,0 5,80 8,417 0,627 0,189 0,343 0,549 5,83 7,610 0,697 0,152 0,310 0,544 60 12,0 5,80 8,417 0,627 0,189 0,343 0,549 5,83 7,610 0,697 0,152 0,310 0,544 60 12,0 5,80 8,417 0,627 0,189 0,343 0,549 5,83 7,610 0,697 0,152 0,310 0,544 60 12,0 5,80 8,417 0,627 0,189 0,343 0,549 5,83 7,610 0,697 0,152 0,310 0,544 60 12,0 5,80 8,408 0,627 0,188 0,343 0,549 5,83 7,625 0,696 0,153 0,311 0,544 60 12,0 5,80 8,408 0,627 0,188 0,343 0,549 5,83 7,625 0,696 0,153 0,311 0,544 60 12,0 5,80 8,408 0,627 0,188 0,343 0,549 5,83 7,625 0,696 0,153 0,311 0,544 60 12,0 5,80 8,408 0,627 0,188 0,343 0,549 5,83 7,625 0,696 0,153 0,311 0,544 60
VS nP nInput Q MInput PInput SF nP nInput Q MInput PInput SF PTotal [kn] [min-1] [min-1] [kNm] [kNm] [kW] [-] [min-1] [min-1] [kNm] [kNm] [kW] [-] [kW] 8,0 320 779 1,5 0,6 53 0,20 291 710 1,1 0,5 36 0,15 178 9,0 361 880 2,0 0,8 77 0,25 329 801 1,5 0,6 52 0,19 257 9,5 383 933 2,2 0,9 92 0,28 348 848 1,6 0,7 62 0,21 307 10,0 406 988 2,5 1,1 110 0,32 368 898 1,9 0,8 74 0,24 367 10,5 429 1045 2,8 1,2 131 0,36 389 948 2,1 0,9 88 0,27 437 11,0 453 1103 3,2 1,3 155 0,41 411 1001 2,4 1,0 104 0,30 518 11,5 478 1166 3,6 1,5 184 0,46 433 1056 2,6 1,1 124 0,34 615 12,0 505 1231 4,0 1,7 219 0,51 457 1113 3,0 1,3 146 0,38 730 12,0 505 1231 4,0 1,7 219 0,51 457 1113 3,0 1,3 146 0,38 730 12,0 505 1231 4,0 1,7 219 0,51 457 1113 3,0 1,3 146 0,38 730 12,0 505 1231 4,0 1,7 219 0,51 457 1113 3,0 1,3 146 0,38 730 12,0 504 1230 4,0 1,7 218 0,51 457 1115 3,0 1,3 147 0,38 731 12,0 504 1230 4,0 1,7 218 0,51 457 1115 3,0 1,3 147 0,38 731 12,0 504 1230 4,0 1,7 218 0,51 457 1115 3,0 1,3 147 0,38 731 12,0 504 1230 4,0 1,7 218 0,51 457 1115 3,0 1,3 147 0,38 731 Appendix C Installation Quotation
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement Study C-1 Job 17097.02, Rev (–)
SCHOTTEL GmbH Mainzer Str. 99 56322 Spay/Rhein Germany
Glosten Associates, Inc. SCHOTTEL GmbH Mr. William L. Moon Contact Frank Zeller 1201 Western Avenue Suite 20 Phone +49 2628 61-161 Email [email protected] SEATTLE 98101 - 29 UNITED STATES OF AMERICA Copy to: SCHOTTEL Inc. Mr. Ingi Huswick
Our Reference Date
VFP / AG_ZellerF_001002 000 21/05/2019
QUOTATION
DE Ferry 80ft Guemes 2x SRP 260 L FP 4x SCD 150 FP
Our project: FER - 170103 - 01 / DE Ferry 80ft Guemes Glosten
Dear Sir or Madame,
We have the pleasure to submit our offer, based on the General Conditions for the Supply of Mechanical, Electrical and Electronic Products ("ORGALIME S 2012") and SCHOTTEL's amendments available on request.
SCHOTTEL GmbH ▪ Mainzer Str. 99 ▪ D-56322 Spay / Rhein ▪ Phone: +49 (2628) 61 0 ▪ Fax: +49 (2628) 61 300 www.schottel.de ▪ Geschäftsführer: Stefan Kaul ▪ Aufsichtsratsvorsitzender: Knut Herman Gjøvaag Sitz der Gesellschaft: Spay / Rhein ▪ Amtsgericht Koblenz HRB 20734 ▪ USt.-IdNr. / VAT No. DE 196 716 200
BANKEN / BANKS IBAN CODE BIC-CODE KONTEN / ACCOUNTS BLZ / BANK CODES Commerzbank Koblenz DE69 5704 0044 0209 9760 00 COBADEFF570 2099760 570 400 44 DZ Bank Düsseldorf DE43 3006 0010 0000 5794 97 GENODEDD 579497 300 600 10 Volksbank Rhein-Nahe-Hunsrück eG DE34 5609 0000 0000 0988 10 GENODE51KRE 98810 560 900 00 BGL BNP Paribas S.A., Luxemburg LU03 0030 2909 7105 0000 BGLLLULL 30-290971-05 HSBC Trinkaus & Burkhardt AG DE18 3003 0880 0011 4070 05 TUBDDEDD 0011407005 300 308 80 1. Drive: Quantity two (2) SCHOTTEL Rudder Propeller SRP 260 L FP
1.1 TECHNICAL DATA
Input power : 700 kW Maximum allowed input speed : 1200 rpm Input speed in bollard pull : 1100 rpm Reduction ratio : i = 3,071 :1 Propeller arm length, between motor mounting flange : 2170 mm and propeller shaft Weight (excl. oil) per unit : abt. 10 t (excluding motor) Oil volume : abt. 800 l Casing material : GGG40 Type of construction : L Max. short time input torque : 8912 Nm Input torque at above rating : 6077 Nm Service factor at described nominal input power and : 68 % input speed in bollard pull
Installation location: Turning direction of input Propeller rotation sense (seen shaft, (seen on shaft end): from aft):
· CL Stern clockwise counter-clockwise · CL Bow clockwise counter-clockwise
1.1.2 Azimuth steering Steering type : electrical, SST 1001 Steering time for 180° : abt. 10 s
1.1.3 Prime mover electric PEM motor Type of prime mover : E-Motor Form of Construction : IM-V1 Cooling : Fresh water Max. ambient temperature : 45°C Cooling method : fresh water jacked cooling Speed at nominal power : 1100 rpm Nominal Power : 700 KW Voltage at operation point : 440 V Motor frequency range : tbd. Motor current at operation point : tdb. Motor efficiency : tbd. Variable spped : 0 - 100 %, frequency controlled Power factor : tbd. Insulation class : H Motor operation : S1 V peak : ≤ 2400 V du/dt : 5000 V/µs Protection degree : IP 54 Fresh water inlet temperature : max. 38°C Fresh water flow : 100 l/min
2 / 11 Max allowed glycol content of fresh water : 30% Minimum switching frequency of inverter : 4 kHz Motor weight : about 2.100 kg
The PEM motor will be equipped with an encoder of 1024 Pulses on NDE for vector control.
1.1.4 Nozzle Nozzle type : SCHOTTEL VARIO DUCT SDV 45 Nozzle material : shipbuilding steel, inner surface stainless steel
Propeller diameter : 1650 mm
1.1.5 Propeller Type of propeller : Fixed Pitch Propeller Propeller diameter : 1650 mm Propeller blades : four Propeller material : GS-CuAl10Fe5Ni5-C Propeller RPM : 390,75 rpm Propeller tip speed : 33,75 m/s Propeller lay out speed : 12 kn
1.1.7 Classification Classification society : USCG Ice class : without Extend of acceptance : subchapter T
1.2 SCOPE OF SUPPLY
PER UNIT
2.2.1 Main Product SCHOTTEL Rudder Propeller SRP 260 L FP
· Mounting console for electric motor · Oil expansion tank with level sensor, loose · Streamlined lower gearbox with built-in right angle spiral bevel gears · Cast Iron (GGG40) lower gearbox housing · open Fixed Pitch Propeller · Sacrificial Aluminum anodes for two years cathodic protection attached to the nozzle · mounted form above, into a rectangular well (not SCHOTTEL supply) · Propeller shaft sealing by multiple lip seals running on tungsten carbide coated liners
3 / 11 2.2.2 Thruster in L version Instead of upper gearbox a mounting console for vertical mounted electric motor will be supplied. The power input will be provided by a vertical input shaft.
An elastic coupling with electric brake will be installed between vertical input shaft to thruster and electric motor.
2.2.3 Azimuth steering SCHOTTEL full follow up redundant electric steering system SST 1001 with non follow up back-up system. Electric steering motors are controlled by, air cooled, VFDs installed in the steering and control switch box. Each thruster is controlled by two redundant VFDs.
2.2.4 Electric operated disc brake · One (1) electric operated disc brake to block the propeller in case of fault of drive system, fault of relevant thruster or in case of service.
2.2.5 Power transmission · One (1) elastic coupling(s)
2.2.6 Control system · One (1) switch cabinet for control system and power part for azimuth steering control · One (1) set of control modules to be installed in the main bridge console, consisting of: Thruster control lever, thruster controls, motor drive controls, indicators (delivered loose) · One (1) local panel with none follow up controls and indicating devices integrated in the steering control cabinet door · Potential free alarm contacts to be connected to the ships alarm system · One (1) interface to RPM control (setpoint signal type: 4-20mA) · One (1) break resistor for the steering motors · One (1 ) interface for sailing direction via potential free contacts
Note:
Sailing direction change is done by turning of master & mater chair by 180°. Panels, steering levers to be arranged left and right side of master.
2.2.7 In addition we supply: (PER SHIP SET) · One (1) set of tools · One (1) set of spares · Torsional Vibration Analysis · Documentation in English language, three fold · Supply according to United States Coast Guard (USCG) under Subchapter T (small passenger vessels) · Service engineer's assistance for 10 day(s) in 2 trip(s), only for commissioning, is included. If applicable, participation at sea acceptance tests, harbour acceptance tests, FMEAs, site acceptance tests, bollard pull tests or similar will be charged at real expense as SCHOTTEL has limited influence on duration.
4 / 11 1.3 EXCLUSIONS
· Outer well(s) · Classification certificate · Frequency converter drive · Automatic contactor in separate cabinet to disconnect drive from PEM motor (offered optionally) · Well bottom cover plate · Electric power supply · Cooling water supply · Pressurized air supply · Emergency batteries supply · Connecting pipelines · Protection of all moving parts · Oil · Cable glands · Alarm System (other than mentioned alarm switches) · External cables
1.4 PRICE
Price for 2 above described SRP 260 L FP 595.000,00 €
2. Drive: Quantity four (4) SCHOTTEL Combi Drive SCD 150 Single
2.1 TECHNICAL DATA
1.1.1 Main product Input power : 360 kW (abt. 428 hp) Input speed : 1300 rpm Reduction ratio : i = 2,438 : 1 Propeller arm length, PAL : 1425 mm (distance between propeller centre line and connection flange) Weight (excl. oil) per unit : abt. 4 t Casing material : cast iron Type of construction : L
Installation location: Turning direction of input shaft Propeller rotation sense (seen (seen on shaft end from prime from aft): mover to drive):
· Portside Stern clockwise counter clockwise · Starboard Stern clockwise counter clockwise · Portside Bow clockwise counter clockwise · Starboard Bow clockwise counter clockwise
1.1.2 Azimuth steering
Steering type : electrical
5 / 11 Steering time for 180° : abt. 10 s
1.1.3 Installation
Type of installation : mounted from above, bolted, rubber gasket sealed into a Rectangular well (not SCHOTTEL supply)
1.1.4 Nozzle
Nozzle type : Schottel VarioDuct, SDV45, bolted to the thruster Nozzle material : shipbuilding steel, inner surface stainless steel Max speed considered for the structural design of the : 14,50 kn nozzle (Higher nozzle design speeds are possible but might have a cost impact)
1.1.5 Propeller Type of propeller : Fixed Pitch Propeller Propeller diameter : 1100 mm Propeller blades : four (The final number of blades will be determined on basis of TVA calculations!) Propeller material : GS-CuAl10Fe5Ni5-C Propeller RPM : abt. 533 rpm Propeller tip speed : abt. 31 m/s
1.1.6 E-Motor (installed on top of SCD)
Permanent magnet motor Nominal power : 360 kW @ 1300 rpm Design : V1 Protection : IP54 Voltage : 440 V (converter operated) Frequency : 60 Hz Insulation class / Temperature rise : F (max. 155 °C)
Jacket cooling : freshwater cooled Cooling water amount : abt. 25 l/h Cooling water temperature : abt. 38 °C Heat dissipation : abt. 15 kW
The motor is designed to be controlled by a VFD.The VFD has to comply with:
6 / 11 Max allowable voltage gradient at motor terminals / dU/dt : 10000 V/µsec Max allowable peak voltage at motor terminals / Û : 2400 V
Above voltage gradient is based on 690V voltage supply / in case the voltage supply is different please get back to us
1.1.7 Classification
Classification society : without Ice class : without Extent of acceptance : Subchapter T
2.2 SCOPE OF SUPPLY
PER UNIT
1.2.1 Thruster
· SCHOTTEL Combi Drive type SCD 150 Single, ducted · Streamlined lower gearbox with built-in right angle spiral bevel gears · Cast Iron (GGG) lower gear box housing · Sacrificial Al anodes for 2 years cathodic protection supplied loose to be installed by the shipyard in the vicinity of the thruster · Bolted installation from top into a rectangular well (not SCHOTTEL supply) · Expansion tank for Integrated lubrication system with electrical driven lube oil pump. The lubrication oil is cooled by the water surrounding propulsion unit. · Electrohydraulic operated locking device to block the propeller to avoid wind milling during maintenance and repair
1.2.2 Electric motor
· Vertically mounted synchronous permanent magnet motor. · The E-Motor vertically mounted on the thruster top plate and fresh water cooled.
1.2.3 Azimuth steering
· SCHOTTEL full follow up electric steering system SST 1002. Electric steering motors are controlled by, air cooled, VFD installed in a switch box. Each thruster has one VFD
1.2.4 Control system
· One (1) switch cabinet for control system and power part for azimuth steering control · One (1) set of control modules to be installed in the main bridge console, consisting of: Thruster control lever, thruster controls, motor drive controls, indicators (delivered loose) · One (1) local panel with none follow up controls and indicating devices integrated in the steering control cabinet door · Potential free alarm contacts to be connected to the ships alarm system · One (1) interface to RPM control (setpoint signal type: 4-20mA) · One (1) break resistor for the steering motors · One (1 ) interface for sailing direction via potential free contacts
7 / 11 Note:
One (1) copilot control handle for both bow and one (1) copilot control handle for both stern units, combined operation in synchron mode Sailing direction change is done by turning of master & mater chair by 180°. Panels, steering levers to be arranged left and right side of master.
PER SHIP SET
1.2.5 In addition we supply:
· 1 x set of tools · 1 x set of spares · Torsional Vibration Analysis · Documentation in English language, 3 fold · Supply according to United States Coast Guard (USCG) under Subchapter T (small passenger vessels) · Service engineer's assistance for 14 days in 2 trip(s), only for commissioning, is included. If applicable, participation at sea acceptance tests, harbour acceptance tests, FMEAs, site acceptance tests, bollard pull tests or similar will be charged at real expense as SCHOTTEL has limited influence on duration.
2.3 EXCLUSIONS
· Well and bottom cover plate · Classification certificate · Prime mover control (only 4 - 20mA signal) · VFD for motor · Electric power supply · Cooling water supply · Pressurized air supply · Connecting pipelines · Oil · External electric cables · Mounting material · Installation of the system · Any part not specifically mentioned herein as being part of SCHOTTEL’s scope of supply
2.4 PRICE
Price for 4 above described SCD 150 Single 810.000,00 €
8 / 11 3 Price Overview
Pos. Description Quantity Price
1 SRP 260 L FP 2 595.000,00 € 2 SCD 150 Single 4 810.000,00 €
4 Options
Pos. Description Quantity Price
1 Spare thruster SRP 260 L FP, 1 (one) 235,000.00 €
as described, with nozzle, propeller, vertically mounted PEM motor, steering motors, designed for top mounting / replacement
excluding class certificate, switchbox, controls, commissioning
Note: To be ordered and delivered together with main ship set.
2 Spare thruster SCD 150 FP, 1 (one) 145,000.00 €
as described, with nozzle, propeller, vertically mounted PEM motor, steering motors, designed for top mounting / replacement
excluding class certificate, switchbox, controls, commissioning
Note: To be ordered and delivered together with main shipset.
5 Sales Conditions
5.1 PRICE SETTING CIF, main seaport US West Coast, according to INCOTERMS 2010. Price is exclusive VAT, bank
9 / 11 charges, import duty, taxes or other charges.
5.2 PRICE CLAUSE Above mentioned prices are only valid for below mentioned delivery times. For later delivery, price will increase by 0,5 % per month. If the market price of a specific direct material increases more than this, SCHOTTEL reserves the right to increase the contract price to cover the increased costs.
5.3 TIME OF DELIVERY SRP 260 L FP : approx. 9 months, SCD 150 Single : approx. 9 months,
ex-factory upon notification of readiness of shipment and after receipt of order and clarification of all commercial and technical details. (Please take note that the delivery times quoted are based on current production schedule and are subject to change without notice. Delivery times should always be reconfirmed by us prior to order.)
5.4 PAYMENT 30% down-payment with order 60% upon notification of readiness of shipment, payment releases shipment 10% upon completion of a successful sea trial, but latest six (6) months after delivery ex-works.
5.5 OFFER VALIDITY This offer is valid for 30 day(s) and will only be binding through a contract signed by both parties.
5.6 WARRANTY 12 month(s) upon successful commissioning, latest 18 month(s) from the confirmed date when the goods were handed over to the first carrier, based on the General Conditions for the Supply of Mechanical, Electrical and Electronic Products ("ORGALIME S 2012") and SCHOTTEL`s amendments thereto available on request. Accessories such as motors, hydraulic systems etc. are subject to the warranty of the respective manufacturer.
5.7 CONFIDENTIALITY This offer contains confidential technical and commercial information which are sensitive in respect of SCHOTTEL’s business. Customer is prohibited to disclose such information to any third parties.
Kind regards,
SCHOTTEL GmbH
10 / 11 Frank Zeller Andreas Witschel Sales Manager Cruise, Ferry & Yacht Sales Director Cruise, Ferry & Yacht
11 / 11
Appendix D Life Cycle Costing (Maintenance Plan)
Guemes Island Ferry Replacement 19 June 2019 Propulsion Arrangement Study D-1 Job 17097.02, Rev (–)
Life Cycle Costing FER-170103-01 / GUEMES FERRY
Time period 15 years Annual working hours Up to 5000h Class Without Operating profile B Rating Type of vessel FER Steering Electric Motor / Engine Electric / PM Clutch Without Type of unit SRP 260 FP L S-COM / LEACON Without / LEACON Contact FZ / GmbH Basic 1221846 No of unit 2
Parts Labour Amount Summary LCC:
Basic Maintenance costs after 5 years* 6.320,00 € 4.400,00 € 10.720,00 € costs after 10 years* 35.660,00 € 12.100,00 € 47.760,00 € costs after 15 years* 42.780,00 € 16.500,00 € 59.280,00 €
Advanced Maintenance additional overhaul after 15 years 48.500,00 € 33.600,00 € 82.100,00 € Basic + Advanced Maintenance after 15 years 141.380,00 €
*Due to LEACON, regular oil analysis and vibro checks a change from preventive to a predictive maintenace is possible. Maintenance intervalls might be prolonged and costs reduced.
1/3 SRP 260 FP_2 x 15 years_FER-170103-01.xlsx 27.05.2019 Life Cycle Costing
SCHOTTEL has been developing and manufacturing azimuth propulsion and manoeuvring systems, complete propulsion systems with power ratings of up to 30 MW, and steering systems for vessels of all sizes and types, for about 65 years. Based on this experience, an detailed maintenance plan for each product and customer-supplied project information we have calculated this life cycle costing (LCC) for your vessel.
All prices and information are not binding. Price basis is year 2019. Standard labour rates are considered. For information of remaining and additional rates such as overtime-, weekend-and travelling -charges we refer to SCHOTTEL´s Terms and Conditions for Service Engineers. Delivery ex works. Not included is the support by shipyard- and workshop-staff, any support by machine shops or any facililties.
Issued by: Joachim Alexander Date: 27.05.2019
2/3 SRP 260 FP_2 x 15 years_FER-170103-01.xlsx 27.05.2019 Year Description Parts Days Labour 1 Class required parts on board 0,00 € 2 Class required parts on board 0,00 € 3 Consumption parts, bit +pcs 400,00 € 4 Consumption parts, bit +pcs 400,00 € 5 Consumption parts, bit +pcs 400,00 €
5 year class docking* Propeller shaft seals 4.920,00 € 4 4.400,00 € Propeller liners, 2nd Position 0,00 € Mounting material 200,00 € Different types of Anodes delivered and exchanged by the yard 0,00 € total for 5 years docking 5.120,00 € 4 4.400,00 €
6 Consumption parts, bit +pcs 400,00 € 7 Consumption parts, bit +pcs 400,00 € 8 Consumption parts, bit +pcs 400,00 € 9 Consumption parts, bit +pcs 400,00 € 10 Consumption parts, bit +pcs 400,00 €
10 year docking* Efforts and parts as discribed in 5 year docking 5.120,00 € 4 4.400,00 € Propeller liners 5.200,00 € Elastic coupling overhauled 2.600,00 € Power input liners 9.770,00 € Steering gear 2 x 2 overhauled 3.200,00 € Seals at the cone support 650,00 € 2 2.200,00 € Rubber parts and elastic elements replacement due to ageing 800,00 € 1 1.100,00 € total for 10 years docking 27.340,00 € 7 7.700,00 €
11 Consumption parts, bit +pcs 400,00 € 12 Consumption parts, bit +pcs 400,00 € 13 Consumption parts, bit +pcs 400,00 € 14 Consumption parts, bit +pcs 400,00 € 15 Consumption parts, bit +pcs 400,00 €
15 year docking* Labours and parts as discribed for 5 years 5.120,00 € 4 4.400,00 €
Option* overhaul of SRP in a authiorized workshop, i.e dismantling, inspection and exchange of: all bearings, liners, all rubber elements (elastic elements, hoses, seals, O-rings, ect.), without e-motor 48.500,00 € for two units 33.600,00 €
Summary Parts Labour Basic costs after 5 years 6.320,00 € 4.400,00 € costs after 10 years 35.660,00 € 12.100,00 € costs after 15 years 42.780,00 € 16.500,00 €
Advanced additional overhaul after 15 years 48.500,00 € 33.600,00 € 91.280,00 € 50.100,00 €
3/3 SRP 260 FP_2 x 15 years_FER-170103-01.xlsx 27.05.2019