navigator gas · navigator atlas safety management system gas form c 1.0 vessel’s main...

TECHNICAL FORM C GAS

NAVIGATOR ATLAS

NAVIGATOR GAS

about us

the partner of choice

Navigator Gas is more than a shipping company; we are an international, diverse team of responsible professionals, all working towards creating value to our stakeholders.

We are the owner and operator of the world’s largest fleet of handysize liquefied gas carriers. We provide international seaborne transportation and regional distribution services of liquefied petroleum gas, petrochemical gases and ammonia for energy companies, industrial users and commodity traders. These gases are transported in liquefied form, under cooling temperatures and/or pressure, which can reduce volume by up to 900 times depending on the cargo, making their transportation more efficient and economical.

Our modern fleet has versatile capabilities including ethylene, semi-refrigerated and fully-refrigerated vessels.

DELIVERING VALUE THROUGH STRONG

PARTNERSHIPS

EXPERT

We have unique experience in transporting complex gas cargoes

VERSATILE

We have the world’s largest handysize fleet

SAFETY

Setting the highest standards for safe, reliable and environmentally focussed

shipping solutions

DELIVERING VALUE THROUGH STRONG

PARTNERSHIPS

EFFICIENT

Our modern and eco-design vessels maximise profitability for our customers

GLOBAL

Our large fleet enables global coverage for our customers

FINANCIAL STRENGTH

Our strong financial performance and robust balance sheet will support

our future growth plans

THE FLEET

ETHYLENE CAPABLE FLEET

NEPTUNE

EUROPA

SATURN

TRITON

MARSPLUTO

OBERON

VENUS

UMBRIOATLAS

aurora

NOVA

ECLIPSE

PROMINENCE

SEMI REFRIGERATED FLEET

PHOENIXMAGELLAN PEGASUS ARIES

CERESCENTAURI CETOLIBRA

YAUZA LUGA

SCORPIO TAURUSGEMINI VIRGO

CAPRICORN

LEO

COPERNICO

FULLY REFRIGERATED FLEET

GENESIS

GLORY

GLOBAL

GUSTO

GALAXY

GRACE

Hull 8234

VESSEL BUILT SIZE LOA TANKS

ETH

YLE

NE

CAPA

BLE

Navigator Neptune 2000 22,000 169.97 4

Navigator Pluto 2000 22,000 169.97 4

Navigator Saturn 2000 22,000 169.97 4

Navigator Venus 2000 22,000 169.97 4

Navigator Mars 2000 22,000 169.97 4

Navigator Atlas 2014 21,000 159.97 4

Navigator Europa 2014 21,000 159.97 4

Navigator Oberon 2014 21,000 159.97 4

Navigator Triton 2014 21,000 159.97 4

Navigator Umbrio 2015 21,000 159.97 4

Navigator Aurora 2016 35,000 179.97 3

Navigator Eclipse 2016 35,000 179.97 3

Navigator Nova 2016 35,000 179.97 3

Navigator Prominence 2016 35,000 179.97 3

SEM

I-RE

FRIG

ERA

TED

Navigator Magellan 1998 20,900 159.09 4

Navigator Pegasus 2009 22,000 169.98 4

Navigator Phoenix 2009 22,000 169.98 4

Navigator Aries 2008 20,550 159.97 4

Navigator Capricorn 2008 20,600 159.97 4

Navigator Gemini 2009 20,550 159.97 4

Navigator Scorpio 2009 20,600 159.97 4

Navigator Taurus 2009 20,550 159.97 4

Navigator Virgo 2009 20,600 159.97 4

Navigator Leo 2011 20,600 159.97 4

Navigator Libra 2012 20,600 159.97 4

Navigator Centauri 2015 22,000 159.97 4

Navigator Ceres 2015 22,000 159.97 4

Navigator Ceto 2015 22,000 159.97 4

Navigator Copernico 2016 22,000 159.97 4

Navigator Yauza 2017 22,000 159.95 3

Navigator Luga 2017 22,000 159.95 3

FULL

Y

REFR

IGER

ATE

D

Navigator Glory 2010 22,600 154.17 3

Navigator Grace 2010 22,600 154.17 3

Navigator Gusto 2011 22,600 154.17 3

Navigator Genesis 2011 22,600 154.17 3

Navigator Galaxy 2011 22,600 154.17 3

Navigator Global 2011 22,600 154.17 3

Hull 8234 2017 38,000 180.00 3

REVISION 01 revision date: 01 · 08 · 20131 of 30

TECHNICAL ‘FORM C’ GASNAVIGATOR ATLAS

21,000 cbm ETHYLENE / LPG CARRIER

Specifications of the vessel and the gas installations are believed to be correct as per design specifications and capacities, but not guaranteed, and consequently Owners are not to be held accountable for such. We further reserve our rights for normal wear and tear on cargo equipment in respect of loading, discharging, cooling-rates and time for changing cargo grades etc., including but not limited to capacity of cargo re-heaters, compressors, pumps and other equipment, as described in this Form-C as these descriptions, as described above, refers to design capacities.

GAS FORM C

REVISION 01 2 of 30 revision date: 01 · 08 · 2013

NAVIGATOR ATLAS

SAFETY MANAGEMENT SYSTEM GAS FORM C

CONTENTS

1.0 VESSEL'S MAIN CHARACTERISTICS 41.1 GENERAL INFORMATION 4

1.2 VESSELS DIMENSIONS AND TONNAGES 6

1.3 LOAD LINES 6

1.4 DEADWEIGHT 7

2.0 CARGO INSTALLATION 82.1 TANK CAPACITIES/INTAKES 8

2.2 TANK CAPACITIES/INTAKES & DRAFTS 8

2.3 MANIFOLD LAYOUT/ARRANGEMENT 9

2.3.1 SIZE OF MANIFOLD CONNECTIONS 9

2.3.2 AVAILABLE REDUCERS 10

2.3.3 CROSS-SECTION OF THE MANIFOLD 11

2.4 PARALLEL BODY LENGTH 12

3.0 MACHINERY 143.1 DECK MACHINERY AND EQUIPMENT 14

3.2 MOORING/ANCHORING EQUIPMENT 14

3.3 ENGINE MACHINERY AND EQUIPMENT 18

3.4 BUNKER/BALLAST/POTABLE WATER INTAKES (LS HFO/LS MDO) 19

3.5 CARGO PUMPS 20

3.6 CARGO COMPRESSORS 20

3.7 FUEL CONSUMPTION 21

4.0 CARRYING CONDITIONS 224.1 LIST OF CARGOES FOR TYPE IIG CARRIER 22

4.2 TRANSPORT CONDITIONS 23

4.3 SIMULTANEOUS TRANSPORT OF DIFFERENT GRADES 23

4.3.1 CARGO TANKS CHARACTERISTICS 23

4.3.2 CARGO DECK TANKS 23

4.4 LOADING 24

4.4.1 LOADING FULLY REFRIGERATED CARGOES 24

4.4.2 LOADING SEMI-REFRIGERATED & AMBIENT CARGOES AT +18ºC ACCORDING 24

4.5 COOLING DOWN 24

4.6 HEAT LOSS DUE TO TANK INSULATION 24

4.7 DISCHARGING 25

4.8 CARGO WARMING UP 25


VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION

5.0 ADDITIONAL INFORMATION 265.1 CARGO ROB AFTER FULL DISCHARGE 26

5.2 GAS FREEING AND INERTING 27

5.2.1 INERT GAS PLANT 27

5.2.2 DECK FANS 27

5.3 MEASURING APPARATUS 28

5.3.1 CARGO TANKS CHARACTERISTICS 28

5.3.2 CARGO DECK TANKS 28

5.3.3 TANK WALL TEMPERATURE SENSORS 28

5.3.4 CARGO PRESSURE 28


NAVIGATOR ATLAS


1.0 VESSEL’S MAIN CHARACTERISTICS

1.1 General Information

NAMENavigator Atlas

IMO NUMBER9661558

CALL SIGND5FZ2

MMSI636 016 396

REGISTERED OWNERNAVIGATOR ATLAS L.L.C.Trust Company Complex, Ajeltake Road, Ajeltake Island Majuro, Marshall Islands MH96960 Company IMO No. 5409173

NAVIGATOR

FLAGLiberia

PORT OF REGISTRYMonrovia

FLAG OFFICIAL NUMBER16396

KEEL LAID10 July 2013

LAUNCHED03 December 2013

DELIVERED20 June 2014

ICE CLASSE1

CAPNot Applicable (The vessel is < 15Y)

CASNot Applicable (The vessel is < 15Y)

TYPEIIG – Ethylene / LPG / VCM / Ammonia – Carrier

HULLDouble bottom

APPROVALIMO, USCG, MOT, MARPOL and SOLAS

BUILDING SHIPYARDJiangnan Shipyard (Group) Ltd. Co. Hull No. 2530


2.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION

VESSEL’S MAIN CHARACTERISTICS 1.0

CLASSIFICATION SOCIETYDNV-GL

CLASS REGISTRATION NUMBER117276

CLASS NOTATION+100A5 E Liquefied Gas Tanker Type 2G, IW ERS, NLS, BWM (D1,D2) +MC Aut, RI, CM-PS

COMMERCIAL MANAGER/ OPERATORNAVIGATOR GAS L.L.C. 21 Palmer Street,London, SW1H 0AD United Kingdom Tel +44 (0) 20 7340 4850 Fax +44 (0) 20 7340 4858 E-mail [email protected]

DOC HOLDERNorthern Marine Management Ltd.Alba House, 2 Central Street, Clydebank, G81 2QR, Scotland, United Kingdom Tel +44 (0)1418 763 000 Fax +44 (0)1419 412 791 E-mail [email protected] [email protected] www.nmm-stena.comCompany IMO No. 1039244

P & I CLUBBRITANNIASteam Ship Insurance Association LimitedRegis House,45 King William Street,London, EC4R 9ANUnited KingdomTel +44 (0)20 7407 3588

QUALIFIED INDIVIDUAL (QI) IN USAO'Brien's Response Management Inc. 103 Morgan Lane, Suite 103, Plainsboro, New Jersey 08536, USA. Tel +1 985 781 0804 Tel +1 713 470 1139 (24 Hr)Fax +1 985 781 0580 E-mail [email protected]

OSRONational Response Corporation 3500 Sunrise Highway, Suite 103 Great River, New York 11739, USA. Tel +1 631 224 9141Fax +1 631 224 9086E-mail [email protected]

F77 TELEPHONE not applicable F77 FAX not applicable

MINIVSAT (1) +44 141 846 0430 MINIVSAT (2) +44 203 318 0536

MOBILE PHONE not applicable

SAT.A/B/M/F/FB TEL. not applicable SAT.A/B/M/F/FB TEL.2 not applicable

SAT.A/B/M/FB FAX not applicable SAT.A/B/M TLX not applicable

SAT.C TELEX 1 463 716 135 SAT.C TELEX 2 463 716 136

SAT-C EMAIL [email protected]

INTERNET EMAIL [email protected]


NAVIGATOR ATLAS


1.2 vessel dimensions & Tonnages

1.3 load lines

Length Overall 159.99 m Length between perpendiculars 152.81 m

Moulded (Extreme) Breadth 24.83 m Moulded (Extreme) Depth 16.70 m

FW allowance 0.20 m TPC 33.3 mt

Distance Keel – Top Antenna 43.10 m GRT 17,208.0 mt

NRT 5,163.0 mt Suez Canal Tonnage 53,176.3 cbm

Suez GRT 18,771.2 mt Suez NRT 17,897.4 mt

Panama Canal Tonnage 58,278.1 cbm Panama NRT 14,398.0 mt

Lightship Weight 9,102.7 mt

LOAD LINE FREE BOARD DRAFT DEADWEIGHT DISPLACEMENT

Summer 7.31 m 9.40 m 17,000.0 mt 26,137.0 mt

Winter 7.51 m 9.20 m 16,350.0 mt 25,487.0 mt

Tropical 7.12 m 9.59 m 17,770.0 mt 26,837.0 mt

Light ship 12.91 m 3.80 m n/a 9,137.4 mt

Ballast condition 9.81 m † 6.9 m † 9,763.0 mt † 18,900.0 mt

† Note: Arrival Condition


2.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION


1.4 Deadweight

Full Cargo (Ammonia) 16,173.2 mt

Full Cargo (Butadiene) n/a

Full Cargo (Butane) 14,463.4 mt

Full Cargo (Ethylene) 13,845.4 mt

Full Cargo (Propane) 14,113.2 mt

Full Cargo (Propylene) n/a

Full Cargo (LPG) 14,113.2 mt

Full Cargo (VCM) 16,524.2 mt

Ballast 9,721.4 mt

Note: All figures for 95% bunkers


NAVIGATOR ATLAS


2.0 CARGO INSTALLATION

2.1 TANK CAPACITIES/INTAKES

2.2 TANK CAPACITIES/INTAKES & drafts

DENSITY TANK 1 TANK 2 TANK 3 TANK 4 TOTALCubic Meter 100% n/a 4,673 5,474 5,473 5,474 21,095 cbm

Cubic Meter 98% n/a 4,580 5,365 5,364 5,365 20,673 cbm

Ammonia 0.68 3,124 3,659 3,658 3,659 14,099 mt

Butadiene 0.65 2,977 3,487 3,486 3,487 13,438 mt

Butane (n) 0.60 2,757 3,230 3,229 3,230 12,445 mt

Butene-1 0.62 2,858 3,348 3,347 3,348 12,900 mt

Crude-C4 0.62 2,817 3,299 3,299 3,299 12,714 mt

Ethane 0.54 2,469 2,885 2,885 2,885 11,124 mt

Ethylene 0.57 2,597 3,042 3,041 3,042 11,722 mt

LPG Mix (50/50) 0.59 2,688 3,148 3,148 3,148 12,133 mt

Propane 0.59 2,702 3,165 3,165 3,165 12,197 mt

Propylene 0.61 2,789 3,267 3,266 3,267 12,590 mt

VCM 0.97 3,183 3,729 3,728 3,729 14,268 mt

PRODUCT DENSITY (MT/CBM)

TEMP °C (FULLY REF)

TOTAL CARGO MIN DRAFT (30% BUNKERS)

MAX DRAFT (98% BUNKERS)

Ammonia 0.68 −33.5 14,099 mt 8.70 m 9.56 m

Butadiene 0.65 −4.5 13,438 mt n/a n/a

Butane (n) 0.60 −0.5 12,445 mt 8.54 m 9.27 m

Butene-1 0.62 −5.0 12,900 mt 8.64 m 9.35 m

Crude-C4 0.62 −5.0 12,714 mt 8.51 m 9.00 m

Ethane 0.55 −88.7 12,900 mt 8.29 m 9.04 m

Ethylene 0.57 −103.8 12,714 mt 8.42 m 9.16 m

LPG Mix (50/50) 0.60 −20.0 11,722 mt n/a n/a

Propane 0.59 −42.1 12,197 mt 8.47 m 9.20 m

Propylene (pgm) 0.61 −47.3 12,590 mt 8.60 m 9.31 m

Propylene Ox. n/a n/a n/a n/a n/a

VCM 0.97 −13.4 14,368 mt 8.93 m 9.62 m

Note: The maximum intake various with loading temperature. As a general rule the max intake for a “warm” cargo is reduced with approximately 2.5% for every 10°C. Loading Propane (C3) at −30°C instead of −40°C will reduce the max intake with around 250 MT. For detailed intake calculations Owners must be contacted.

Note: Drafts given in table 2.2 are for even keel.

Note: Calculation carried out for SW (1.025 t/m3)



3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION

2.0CARGO INSTALLATION

2.3 MANIFOLD LAYOUT/ARRANGEMENT

TWO SEGREGATION MANIFOLD LAYOUT

Distance from centre of L1 to bow: ~73.2 m

Distance from centre of L1 to stern: ~86.8 m

Liquid connections (N’size) L1: 1 × 8“ / 300 lbsL2: 1 × 12“ / 300 lbsL3: 1 × 6“ / 300 lbs

Vapour Connections (N’size) V1: 1 × 6“ / 300 lbsV2: 1 × 8“ / 300 lbsV2: 1 × 4“ / 300 lbs

MDO HFO L3 L2V3 V1 L1V2 LNG

2.0 m0.8 m

STARBOARD

PORT

BOW

DRIP TRAYDISTANCE TO STERN: 79 m DISTANCE TO BOW: 81 m

NAVIGATOR

STERN

LIQUID (L1, L2, L3)

VAPOUR (V1, V2, V3) Future LNG bunkering manifold

FUEL (MDO, HFO)

KEY

2.0 m 2.0 m 2.0 m 2.0 m 2.0 m 2.0 m


NAVIGATOR ATLAS


2.3.2 AVAILABLE REDUCERS

CONNECTION SIZE

Liquid 12” 300 × 16” 150

Liquid 12” 300 × 12” 150

Liquid 12” 300 × 10” 300

Liquid 12” 300 × 10” 150

Liquid 12” 300 × 8” 300

Liquid 12” 300 × 8” 150

Liquid 8” 300 × 12” 150

Liquid 8” 300 × 10” 300

Liquid 8” 300 × 10” 150

Liquid 8” 300 × 8” 150

Liquid 8” 300 × 6” 300

Liquid 8” 300 × 6” 150

Liquid 8” 300 × 4” 150

Liquid 8” 150 × 12” 150

Liquid 12” 300 – 10” 300(straight) Flat faces

CONNECTION SIZE

Vapour 6” 300 × 6” 150

Vapour 6” 300 × 4” 300

Vapour 6” 300 × 4” 150

Vapour 6” 300 × 3” 150

Vapour 8” 300 × 6” 300 (s-Bend)

Note: Any other dimensions can be sourced and delivered to the vessel





2.3.3 cross-section of the manifold

A Manifold to side shell 4.45 m

B Manifold to First Support (Cantilever) 0.43 m

C Manifold flange bottom to Drip Tray grating 0.95 m

D Manifold flange bottom to Main Deck 1.30 m

E Manifold to inner Drip Tray edge 0.1 m

F Manifold to outer Drip Tray edge 1.45 m

G WL to Manifold centre (Ballast 25% bunkers) 11.54 m

H WL to Manifold (LPG 75% bunkers) 9.80 m

I WL to Manifold (VCM 75% bunkers) 9.20 m

J Railing 1.11 m

K Manifold flange to Railing 4.25 m

FIRST SUPPORT

RAILING

INLINE VALVE

DRIP TRAY

1.45 m

VCM FULL CARGO

LPG FULL CARGO

NO CARGO

1.30 m0.95 m

0.10 m

1.11 m 9.20 m 9.80 m 11.54 m

0.43 m 4.45 m

4.25 m


NAVIGATOR ATLAS


2.4 parallel body length

A Parallel body length ballast 48 m

B PBL C/L to aft ballast 32 m

C PBL C/L to fwd ballast 16 m

D Parallel body length LPG 52 m

E PBL C/L to aft LPG 36 m

F PBL C/L to fwd LPG 16 m

G Parallel body length scantling (VCM) 54 m

H PBL C/L to aft scantling 37 m

I PBL C/L to fwd scantling 17 m

Note: All figures for 75% bunkers

Note: Parallel body length is important in order to assess the suitability for the vessel to berth at a particular pier. The distance between the fenders at the terminal must correspond to the parallel body length of the vessel at arrival and departure drafts.

NAVIGATOR ATLAS

DISTANCE TO STERN: 79m DISTANCE TO BOW: 81m





THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK


NAVIGATOR ATLAS


3.0 MACHINERY

3.1 DECK MACHINERY & Equipment

MIDSHIPS CRANE 1 × Hose Handling Crane

Manufacturer McGregor

Hosting Capacity 7.5 t

Outreach 19 m

AFT CRANE 1 × Stores Handling Crane – Starboard

Manufacturer Wuxi Lida Gear Manufacturing Co. Ltd.

Hosting Capacity 2 t

Outreach 8 m

3.2 MOORING/ANCHORING EQUIPMENT

WINDLASSES

Number 2

Manufacturer Pusnes

Driven by Hydraulic Pumpsets

Maximum Pull 171 kN

The windlass and forward mooring winches have “remote stands” for operating them at optimum efficiency and safety.

MOORING WINCHES Combined Mooring Winches

Number 3

Manufacturer Pusnes

Driven by Hydraulic Pumpsets

Maximum Pull 120 kN

ANCHORS

Number of shackles Port/Starboard 10/11 shackles (275/302.5 m)


VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION

4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION

3.0MACHINERY

MOORING ROPES

Type High performance ropes – Tipto Eight

Number 14 (at standard mooring arrangement)

Diameter 48 mm

Length 220 m

Breaking Strength ~48 mt

EMERGENCY TOWING ARRANGEMENT Yes

Type Fwd – PH 2401-F (Chaffing Chain), S.W.L. 200 mt

Number Aft – PH 2401-A (Coiled Wire), S.W.L. 102 mt

STS CAPABILITIES Yes (as per OCIMF/ICS Ship To Ship transfer guide-liquified gas)


NAVIGATOR ATLAS


3.2 MOORING/ANCHORING EQUIPMENT

FULL VESSEL VIEW

FOCUS AREAS

A

A

B

B

C D




3.0MACHINERY

C D

CRUCIFORM BOLLARD

CLOSED CHOCK

ROLLER

WINCH

MOORING WINCH

BOLLARD

KEY


NAVIGATOR ATLAS


3.3 ENGINE MACHINERY & Equipment

MAIN ENGINE

No. of Cylinders 6

Type 6S50ME-C8.2

Power 7,170 kW / 114 rpm

Fuel Grade HFO 380 CST at 50°C

Main Engine Hudong MAN B&W

The Main Engine is of Electronic ME type with reduced speed with very low fuel consumption and minimum impact on environment. The engine is designed so that it can be converted to use LNG as fuel in the future.

AUXILIARY ENGINE

Number 4

Type 2*6L21/31 + 2*5L21/31

Power 1,140/850 kW (per engine), 3,980 kW (total)

Fuel Grade HFO 380 CST at 50°C

Electrical Current 440 V – 60 cycles

The auxiliary engines are working in “Father/Son” system with two larger and two smaller engines allowing us to operate them at their most fuel efficient point across a wide range of power output.

PROPELLER

Type 4 blade / fixed / right handed

Material Ni – Al Bronze Casting

Manufacturer Dalian DMD

Pitch 4.53 m

Diameter 5.75 m

BOW THRUSTERS n/a

Manufacturer n/a

Type n/a

Power n/a




3.0MACHINERY

3.4 BUNKER/Ballast POTABLE WATER INTAKES (LS HFO/LS MDO)

BUNKER

HFO (HS) 100%98%

775.6 cbm760.1 cbm @ SG 0.998

HFO (LS) 100%98%

493.8 cbm488.3 cbm

MGO 100%97%

455.9 cbm442.2 cbm @ SG 0.850

The ship is designed so that LS HFO can be taken into any of the ships six HFO tanks as required by the trade. Flanges are located aft of the cargo manifold.

HFO can be transferred forward to aft or aft to forward as required to maintain an even keel condition (+/– 0.5m) without having ballast onboard on loaded or part loaded passages.

BALLAST

Storage Capacity 7,465 cbm

Segregated Ballast Yes

Pumps 2 + 1 eductor

Capacity per unit 2× 300 + 60 cbm / hour

Location Engine Room

POTABLE WATER

Storage Capacity 217.6 cbm

Fresh Water Generator Yes

Average daily prod. 20 mts / day

Average daily cons. 7 mts / day


NAVIGATOR ATLAS


3.5 CARGO PUMPS

3.6 CARGO COMPRESSORS

PUMP DETAILS/TYPE DEEP WELL BOOSTER

Quantity 8 2

Manufacturer Svanehoj Svanehoj

Maximum density kg/cbm 0.972 0.680

Capacity Cbm/h nominal 250 250

Location Tank dome Near crossover

Speed RPM 1,785 3,570

Driven by Electric Motor Electric Motor

Power consumption 120 kW 78 kW

COMPRESSORS DETAILS/TYPE CARGO CASCADE

Number 3 2

Manufacturer Burckhardt Mycom

Type 2k-160-2Q_1 (piston) PPN2520 (screw)

Oil Free Yes No




3.0MACHINERY

3.7 FUEL CONSUMPTION

SPEED BALLASTCONSUMPTION AT

WARRANTED SPEED – BALLAST

AT SEA – IN BALLAST

– NO COOLINGTOTAL

SPEED KNOTS IFO380 / IFO180 IFO380 / IFO180 IFO380 / IFO180

Warranted 16.00 25.00 3.0 28.00

Likely 16.00 23.00 3.0 26.00

ECO 15.00 20.00 3.0 23.00

Slow Steam 12.00 15.00 3.0 18.00

IN PORT – LOADING FULLY REF

IN PORT – DISCHARGING

FULLY REF

IN PORT – LOADING WARM

IN PORT – DISCHARGING

HEATED

IFO380 / IFO180 IFO380 / IFO180 IFO380 / IFO180 IFO380 / IFO180

5.00 6.00 7.50 9.00

SPEED LADENCONSUMPTION AT

WARRANTED SPEED – LADEN

AT SEA – LADEN – MAINTAINING (1)

OR COOLING TEMP.(2)TOTAL

SPEED KNOTS IFO380 / IFO180 IFO380 / IFO180 (1)

IFO380 / IFO180 (2)

IFO380 / IFO180 (1)

IFO380 / IFO180 (2)

Warranted 16.00 26.00 3.0 6.0 29.00 32.00

Likely 16.00 24.00 3.0 6.0 27.00 30.00

ECO 15.00 21.00 3.0 6.0 24.00 27.00

Slow Steam 12.00 16.00 3.0 6.0 19.00 22.00

AT SEA †

IN PORT †

†

†Note: Up to and including BFT 3 (All figures Approx.)

Note: Using Nitrogen (N2) generator for grade change / tank conditioning will add 2.5 mt IFO /day.

Note: For SECA area trading, the vessel will use low Sulphur (LS IFO380) on passage.

Note: For EU Port operation MGO will be used for instead of IFO.

Note: Ethylene cooling – Add 2–3 mt/day Aux engine HFO.

Note: The vessel is a single fuel ship MDO/MGO is needed only for incineration, emergency, maintenance and fuel changes in/out from SECA areas. Est 0.1–0.2 mt/day in average.


NAVIGATOR ATLAS


4.0 TRANSPORTABLE PRODUCTS AND TRANSPORT CONDITIONS

4.1 LIST OF CARGOES AS PER CERTIFICATE OF FITNESS

The gas handling and re-liquefaction plant is provided for the transportation of following liquefied gases, their saturated pressure (absolute) ranging between 1 and 6 bar and their saturated temperature between +45° and −104° C.

CARGO UN NUMBER CHEMICAL FORMULA BOILING POINTAnhydrous Ammonia 1005 NH3 −33.3°C

Butadiene 1010 C4H6 −4.4°C

Butene (Butylene) 1012 C4H8 n/a

Commercial Propane† 1978 C3H8 −42.1°C

Ethene (Ethylene) 1962 C2H4 –103.7°C

Ethane 1035 C2H6 −89.0°C

Iso-Butane 1011 C4H10 −11.7°C

Isoprene Monomer (I.P.M.) 1218 C5H8 34.0°C

LPG Mix 1075 n/a Varying

Normal Butane 1011 C4H10 −0.5°C

Propane 1978 C3H8 −42.1°C

Propane†/ Butane Mixtures 1075 n/a Varying

Propane†/ Ethane Mixtures 1075 n/a Varying

Propene (Propylene) 1077 C3H6 n/a

Vinyl Chloride Monomer (V.C.M.) 1086 C2H3Cl −13.4°C

† Maximum Ethane percentage in Commercial Propane during liquid phase at saturated temperature is 7.5 Mol% Ethane at 1.0 bar abs.


VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY

5.0ADDITIONAL INFORMATIONCARRYING CONDITIONS 4.0

Three products as per D.1., all three re-liquefied insofar as IMO regulations will be observed. Two products can be cooled, pressure and temperature maintained insofar as IMO regulations will be observed. Three grades can be loaded and discharged simultaneously if done without the use of booster pumps or cargo re-heater.

4.3 Simultaneous Transport of DIFFERENT Grades

4.3.1 CARGO TANKS CHARACTERISTICS

4.3.2 CARGO DECK TANKS

Number of tanks 4

Type bi-lobe – Independent Type C

Max. Tank Pressure IMO 5.30 bar (g)

Max. Permissible Vacuum 0.75 bar (abs.)

Min. Cargo Temperature −104°C

Max. Cargo Density 972 kg/cbm

Washing system if fitted n/a

Number of tanks 1

Tank Size 200 cbm

Max. Pressure 18.0 bar (g)

Min. Cargo Temperature −104°C

Max. Cargo Density 972 kg/cbm

The deck tank can be maintained cooled using one of the cascade systems (For carrying ethylene as cool down parcel).

4.2 TRANSPORT CONDITIONS

Safety Relief Valve Settings 5.4 bar (g) IMO + GL (density 0.680)

Note: The vessel has a USCG waiver and can use 5.4 bar setting also in US.


NAVIGATOR ATLAS


4.4.2. LOADING SEMI-REFRIGERATED & AMBIENT CARGOES AT +18°C

4.5 COOLING DOWN

4.6 Heat Loss due to Tank Insulation

CARGO TANK 1 TANK 2, 3, 4 (EACH)n/a n/a n/a

Average K-Value K = n/a

Cooling down of full cargo at a Sea water temperature of +20°C & +32°C

CARGO START TEMPERATURE AT 20°C (HOURS/1°C) AT 32°C (HOURS/1°C)Ammonia −22°C to −32°C 162 186

Ethylene −100°C to −103°C 63 n/a

Propane −30°C to −42°C 168 168

Propylene −40°C to −47°C 159 112

For propylene at full loading rate, the first 2.5°C can be cooled down during loading using the chiller.

Note: At 20°C with chiller operation during cooling, Propane cargo cools down in 138h and Propylene cargo cools down in 105h.

4.4 LOADING

All Cargoes 2,000 cbm/hr

4.4.1. LOADING FULLY REFRIGERATED CARGOES

Ammonia n/a

Butadiene 2,000 cbm/hr

Butane 2,000 cbm/hr

Propane 420 cbm/hr

VCM 2,000 cbm/hr


VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY

5.0ADDITIONAL INFORMATION4.0CARRYING CONDITIONS

4.7 DISCHARGING

IN SERIES IN PARALLEL

No. of pumps able to work simultaneously 2 deep well pumps and 1 booster All deep well pumps

No. of Cargo Grades that can be discharged simultaneously: 3

AGAINST 120 m L.C. AGAINST 240 m L.C.All Cargoes 2,000 cbm/hr 500 cbm/hr

Time to discharge a full cargo using all pumps ~11 hours ~44 hours

4.8 Cargo WARMING UP

Number of Heaters 1

Type Direct cargo heater / vaporizer on open deck

Heating Medium Sea water

From saturated temperature at 1 bar absolute to −2°C (Sea water temperature ~+18°C).

CAPACITIESAnhydrous Ammonia 370 cbm/hr

Propane 450 cbm/hr

Propane / Butane mix 450 cbm/hr

Propene (Propylene) 450 cbm/hr


NAVIGATOR ATLAS


5.0 ADDITIONAL INFORMATION

5.1 Cargo Remaining On Board (ROB) after full dischargeNormal ROB at the end of unloading (at atmospheric conditions).

Vapour Mass / two Tanks Tank 1 (P/S) Tank 2,3,4 (P/S) Total 4 Tanks (P/S)

Ammonia 4.4 mts 5.2 mts 20 mts

Butane 13.5 mts 15.5 mts 60 mts

Ethylene 10.0 mts 12.0 mts 46 mts

Propane 11.5 mts 13.5 mts 52 mts

VCM 14.0 mts 17.0 mts 65 mts


VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS

ADDITIONAL INFORMATION 5.0

5.2 Gas Freeing and InertingProducing inert gas and dry air for gas freeing of cargo tanks, gas plant and associated systems in addition to feeding the hold spaces with dry air or inert gas as applicable. The I.G. / Nitrogen Plant is based on pressure swing adsorption “psa”, meaning production of Nitrogen as an Inert Gas.

5.2.1 INERT GAS PLANTThe nitrogen production plant is based on an application of the pressure swing adsorption (PSA-process) and consists of four absorbers which are filled with carbon molecular sieves.

Nitrogen Purity 98.0% 99.5% 99.9%

Capacity 1,800 cbm/hr 1,500 cbm/hr 940 cbm/hr

Dewpoint −50°C −50°C −50°C

GAS COMPOSITION

Nitrogen 98.0% 99.5% 99.9%

Oxygen 2.0% 0.5% 0.1%

Dewpoint at 0.75m HG −50°C −50°C −50°C

Discharge Pressure 6.0 bar (g) 6.5 bar (g) 6.5 bar (g)

Electrical Power Requirement 772 kW

Cooling Water Requirement 85 cbm/hr at 35 m L.C.

Dry Air Production Capacity 4,900 cbm/hr with a dew point of −20°C

In order to optimize energy use and emissions, the system is built with dual compressors allowing power consumption to be optimized for voyages of varying length.

5.2.2 DECK FANSDeck fans are used for drying and venting void spaces with dry air.

Number 0


NAVIGATOR ATLAS


5.3 MEASURING APPARATUS

5.3.1 CARGO LEVEL

Number 1 per Tank dome

Type Closed tank gauging with float

Manufacturer Henry system Holland B.V.

Reading Tank Dome / Cargo Control Room / Bridge

Accuracy +/− 1 mm

5.3.2 CARGO TEMPERATURE

Number 2 × Analogue Thermometers per tank3 × Remote sensors (PT 100) per tank

Reading Tank / Cargo Control Room / Bridge

Accuracy +/− 1°C

Location Liquid (200 mm) Vapour (14,000 mm)

Point 1 (100 mm)

Point 2 (6,000 mm)

Point 3 (12,000 mm)

5.3.3 TANK WALL TEMPERATURE SENSORS Number 5 (PT 100) per tank

Reading Cargo Control Room / Bridge

Accuracy +/− 1°C

Location Tank Wall Outside, acc. to GL Requirements

5.3.4 CARGO PRESSURE Number 1 per tank

Reading Tank Dome / Cargo Control Room / Bridge

Accuracy +/− 0.2 bar


VESSEL’S MAIN CHARACTERISTICS 1.02.0CARGO INSTALLATION3.0MACHINERY4.0CARRYING CONDITIONS5.0ADDITIONAL INFORMATION



NAVIGATOR ATLAS




T : +44 (0) 2073 404 850 F : +44 (0)20 7340 4858 E : [email protected]

www.navigatorgas.com

uk office21 Palmer Street London SW1H 0AD UK

usa office399 Park Avenue, 38th Floor New York NY 10022 USA

NAVIGATOR GAS

http://www.navigatorgas.com

mailto:mail%40navigatorgas.com?subject=Navigator%20Aries%20%E2%80%93%20Gas%20Form%20C

https://www.google.co.uk/maps/place/21+Palmer+St,+Westminster,+London+SW1H+0AD/@51.4990035,-0.1354495,17z/data=!3m1!4b1!4m2!3m1!1s0x487604deac8a3f8d:0x4d8ddfe3480718b4

https://www.google.co.uk/maps/place/399+Park+Ave,+New+York,+NY+10022,+USA/@40.8073303,-73.9276322,12z/data=!4m7!1m4!3m3!1s0x89c258fb4e16ac6b:0xcdd90aaf71fc2687!2s399+Park+Ave,+New+York,+NY+10022,+USA!3b1!3m1!1s0x89c258fb4e16ac6b:0xcdd90aaf71fc2687

navigator gas · navigator atlas safety management system gas form c 1.0 vessel’s main...

Documents