Upload
trankhanh
View
223
Download
6
Embed Size (px)
Citation preview
NSMV Training Ship Concept Designfor the US Maritime Administration
Eugene Van Rynbach, Herbert Engineering Corp.
Nov. 17, 2015
October 20, 2011 1
NSMV Concept Design2
National Security Multi‐Mission Vessel (NSMV) Design sponsored by the US Maritime Administration (MARAD)◦ MARAD is responsible for providing training ships to the State Maritime Academies (SMA) – in the past these have been converted vessels, some of which are now over 40 years old
New Training Vessel for up to five SMA to replace aged vessels◦ Primary Role is to act as standard design training vessel for the State Maritime Academies
◦ Utilize modern propulsion system◦ Incorporate modern teaching and training facilities
Alternate Missions◦ Act as support vessel for Humanitarian Assistance and Disaster Response (HA/DR) missions – such as after major hurricanes and earthquakes
◦ Have capability to support that role in wide variety of ports◦ Provide accommodation for support personnel◦ Provide secure communications and command spaces
NSMV Concept Design3
Herbert Engineering – Project Lead ◦ Eugene Van Rynbach – Project Manager◦ Karl Briers & Nick DelGatto – Marine Engineering ◦ Luca Letizia, Phd (HEC Europe) – Stability Analysis◦ Mike Strange – General Arrangement◦ Courtney Crouse ‐ Structures
Bruce S. Rosenblatt & Associates◦ Gary Thompson – Marine Systems
Consultants◦ Carl Setterstrom – Naval Architecture, Regulations◦ Jamestown Metal – Accommodation & Galley Arrangement◦ SSPA (Swedish Model Basin) – Propulsion Power & Prop. Design◦ Wartsila Hamworthy – Waste Water Processing
NSMV Concept Design
Ship Check existing Training Ships at Cal Maritime, Mass Maritime, NY Maritime
Incorporate MARAD and SMA Comments into the concept design
Prepare General Arrangement & Midship Dwgs
Carry out concept level calculations◦ Longitudinal Strength
◦ Electric Load & Auxiliary Machinery Sizing
◦ Propeller Design
◦ Evacuation Analysis
◦ Lightship Weight Estimate
◦ Intact & Damage Stability
Prepare List of Key Machinery and potential makers
Prepare Outline Performance Specification
Meet with USCG & ABS to discuss regulatory approach
For comparison ‐ concept level design for conversion of existing vessel (T5 Tanker)
4
NSMV Concept Design
Stay within the size and mooring limitations of each of the Academies – about 550 ft L x 90 ft B was found to be a good limit to vessel dimensions
Consider and incorporate, as practical, the teaching and training requirements of the Academies – a consolidated wish list was prepared by the SMA’s that provided much useful guidance, plus input received during visits to the academies
Determine the appropriate regulatory regime for a training ship as it is neither a passenger ship nor a cargo ship – after discussion with USCG decided upon using the IMO Code for Special Purpose Ships and the appropriate 46 CFR Chapters
Incorporate best practices and recommendations from the existing training ships –visited 3 training ships and talked to the operating and training staff
Incorporate commercial practice and equipment as feasible to build a cost effective vessel while maintaining an enhanced level of crew and cadet comfort compared to existing training ships
Provide capability for alternate HA/DR missions, including draft of 25 ft or less, without compromising training ship capability
Meet new rigorous safety and stability requirements for 700+ person vessel
5
NSMV Concept Design6
A new dawn for maritime training ships in the US
NSMV Concept Design7
NSMV Concept Design8
NSMV Concept Design9
NSMV Concept Design10
Principal Dimensions◦ Length 159.85 m (524’‐5”)◦ Beam 27.0 m (88’‐7”)◦ Depth 16.8 m (55’‐1.5”)◦ Design Draft 7.62 m (25’‐0”)
Propulsion, Speed & Consumption◦ Diesel Electric – 4 main engines divided between 2 engine rooms◦ Installed Power – 15,700 kW Main Engs + 1,980 kW Aux. Gen◦ Full Speed – 18 knots with 15% sea margin – 4 engines◦ Cruising Speed ‐12 knots with 2 main engines in one engine room◦ Uni‐fuel for simplicity and operation in the US ECA – MGO only
NSMV Concept Design11
Range◦ 11,000+ miles at 18 knots
Maneuvering – Docking without tugs◦ Bow Thruster – 1,200 kW Combi‐type – tunnel thruster in normal maneuvering and drop down azimuthing type for “Take Home” power
◦ Stern Thruster – 1,000 kW Tunnel type◦ Flap type rudder for improved low speed maneuverability
Accommodation◦ Training Ship Mode – 600 cadets, 100 officer, faculty, staff & crew All non‐cadets in single cabins with private lavatory unit
◦ Surge capacity for HA/DR missions◦ Food Storage for 60 days◦ Fresh Water Storage for 14 days◦ Gray Water Storage for 7 days, Black Water for 14 days
NSMV Concept Design12
Teaching & Training◦ 8 Classrooms◦ Workshops for Cadets◦ Lab/Training areas for Cadets◦ Training Bridge◦ Navigation Lab◦ Deck Training Space (for marlin spike seamanship training)◦ Large Multi‐Purpose Space◦ Faculty Offices
NSMV Concept Design13
HA/DR Capabilities◦ Potential for RoRo space with Side Ramp◦ Capability to install Cargo Crane◦ Container and Cargo Stowage on Main Deck◦ Capability for Modules on Main Deck◦ Helicopter Landing Capability◦ Command & Communications Suite◦ Enhanced Medical & Treatment Spaces◦ Berthing spaces available for use by HA/DR personnel
NSMV Concept Design14
Propeller Characteristics
SSPA Propeller Series: 4.6Number of Propellers: 1Propeller Type: Fixed-PitchNumber of Blades: 4Propeller Diameter: 5.85 mP/D (mean): 1.01AO/AD: 0.6
Calculated Electric Propulsion Power Requirements
At SeaSpeed,
kts
PropulsionPower,
kW
ShaftPower,
kW
Prop. MotorInput,ekW
SwitchboardLoad,ekW
Prop MotorLoad,Factor
18 9897 9997 10306 10731 1.0012 2932 2962 3054 3180 0.30
Propulsion Drive Efficiencies
Shaft Efficiency: 99%Propulsion Motor Efficiency: 97%Frequency Controller Efficiency: 98%Transformer Efficiency: 98%Generator Efficiency 97%Total Drive Efficiency 89%
NSMV Concept Design15
Electric Load Analysis Summary and Fuel Consumption Calculations
Electric Load Summary
Generator Operating Load
# In Serv
PowerekW
# In Serv
PowerekW
# In Serv
PowerekW
# In Serv
PowerekW
# In Serv
PowerekW
# In Serv
PowerekW
# In Serv
PowerekW
# In Serv
PowerekW
4 3,186 2 3,302 2 2,569 2 3,393 1 3,368 0 - 2 2,005 0 -
1 1,584 0 - 0 - 0 - 0 - 0 - 0 - 1 1,652
0 - 0 - 0 - 0 - 0 - 1 355 0 - 0 -
Fuel Consumption Calculation
Maneuvering Maneuvering w/ Thrusters
Harbor(Full Complement) Emergency Take Home Idle
At Sea18 kts
At Sea12 kts Maneuvering Maneuvering w/
ThrustersHarbor
(Full Complement) Emergency Take Home Idle
Load%
84%
84%
-
-
88%
-
Load%
At Sea12 kts
3,599
4,01014,330 6,604 3556,786 3,3685,138
Idle
0
1,652
1,652
Emergency
0
Take Home
1,250
355 2,760
Harbor(Full Complement)
0
3,368
At Sea12 kts3,180
3,424 3,528 3,535
Maneuvering
1,610
Maneuvering w/ Thrusters
3,251
Main Diesel Generator Fuel Consumption
Aux. Diesel Generator Fuel Consumption
Total Hourly Fuel Consumption
87%
-
-
68%
-
-
90%
-
-
1,291
0
1,291
kg/hr
At Sea18 kts10,731
2,496
337
2,833
68.0
kg/hr
kg/hr
kg/hr
MT/day
At Sea18 kts
Load%
Load%
Load%
Load%
Load%
Load%
89%
-
-
-
-
49%
53%
-
-
31.0
1,023
0
1,023
24.6
1,324
0
1,324
31.8
819
0
819
19.7
0 kg/hr 87 kg/hr 0
kg/hr
kg/hr
kg/hr
MT/day
kg/hr
kg/hr
kg/hr
MT/day
657
0
657
15.8
0
0
87
2.1MT/day
kg/hr
kg/hr
kg/hr
MT/day
kg/hr
kg/hr
kg/hr
MT/day
kg/hr
kg/hr
kg/hr
MT/day
kg/hr
kg/hr
kg/hr
MT/day
Total 6600 Volt Propulsion, ekW
Total 440 Volt Load, ekW
Total Load, ekW
Capacity,ekW
0 kg/hr 0
0
352
352
8.4
kg/hr
kg/hr
kg/hr
Main Diesel Generators
Auxiliary Diesel Generators
Emergency Diesel Generators
3,783
1,881
730
Total Daily Fuel Consumption
kg/hr 0 kg/hrEmerg. Diesel Generator Fuel Consumption 0 kg/hr 0 kg/hr
NSMV Concept Design16
Centerline Profile
NSMV Concept Design17
O2 Level – Cadet & Staff Berthing Spaces
NSMV Concept Design18
2nd Deck – Galley & Mess Space
NSMV Concept Design19
4th Deck & Engine Room
NSMV Concept Design20
NSMV Concept Design21
Waste Heat Steam Boiler & Steam Turbine◦ One Comment from SMA was to investigate feasibility of adding waste heat steam boiler and steam turbine for training purposes.
◦ Calculations indicated low exhaust heat was available because of the efficiency of modern medium speed diesel engines
◦ From each engine sufficient steam for 3 kW turbine was available, for 4 engines combined total is only 12 kW. Too small to be practical
◦ Waste heat boiler appears not to be a practical option – could install an oil fired boiler, which would increase cost and fuel consumption
NSMV Concept Design22
USCG Subchapter R – Public Nautical School Ship◦ Structure according to ABS Rules◦ Stability – one compartment standard◦ Lifesaving – same as passenger vessels◦ Structural fire protection – same as passenger vessels (by policy)
SOLAS – Statement of Voluntary Compliance with Code of Safety for Special Purpose Ships◦ Stability – passenger vessel damage criteria (SOLAS 2009 probabilistic)◦ Structural fire protection – passenger vessel (similar to CFR requirements)◦ Requires redundancy of critical functions in event of flooding or fire in any one compartment
◦ Lifesaving – passenger vessel requirements (similar to CFR requirements)◦ Gap Analysis was prepared comparing USCG CFR and SPS
NSMV Concept Design23
Stability Criteria◦ IMO 2008 Intact Stability Code – General and Weather ◦ Damage Stability – 3 Criteria Applied
◦ SOLAS II‐1, Part B (2009)◦ MARAD Design Letter 3 (one compartment)◦ 46CFR Part 170 & 171 (Passenger Vessels – one compartment standard applies to public nautical school ship)
SOLAS 2009 Damage Stability Analysis was Governing◦ Probabilistic analysis with damages in up to 3 zones◦ HECSALV Software used to model the vessel and run the damage analysis using specially developed routine for passenger vessel analysis
◦ Required Index of 0.71 ‐ Attained Index of 0.796◦ Regulation 8.2 requires Index of 0.9 for shallow damages ‐most difficult to comply with
◦ To meet damage stability required almost all compartments extending outboard of B/5 and to bottom to be symmetrical
NSMV Concept Design24
NSMV Concept Design25
NSMV Concept Design26
Many people contributed to supporting and encouraging the design effort and provided useful guidance. Some of the key people are:
MARAD NSMV Team◦ Paul (Chip) Jaenichen ‐MARAD Administrator◦ Kevin Tokarski – Assoc. Administrator for Strategic Sealift◦ Chris Moore – Project Manager ◦ Technical Advisory Team – Dave Heller, Paul Gilmour, Chao Lin, Tony Margan
US Coast Guard◦ John Hannon – Director, US Flag & Military Sealift Programs (CG‐CVC‐1)◦ Jaideep Sirkar – Chief, Naval Architecture Division (CG‐ENG‐2)◦ Charles Rawson – Naval Architect (CG‐ENG‐2)
State Maritime Academies we visited◦ California Maritime Academy◦ Massachusetts Maritime Academy◦ NY Maritime Academy
NSMV Concept Design27