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A Brief Introduction of

65 Ton LNG Fueled Tug

Presented by: Prostar Marine Offshore Pte Ltd www.prostar-marine.com

Email: mail@prostar-marine.com

Project Overall Description Project Name: 65 Ton LNG Fueled (DF) ASD Harbour Tug

Owner: Keppel Smit Towage Pte Ltd Builder: Keppel Singmarine Pte Ltd DF Main Engine: Niigata (Japan), 28AHX-DF LNG Fuel Gas Supply System: Shang Hansail Marine & Offshore Design Co., Ltd. Prostar Marine Offshore Pte Ltd.

One vessel delivered in June 2018 One vessel will be delivered in August 2018

Tug Photos

Vessel Main Particulars 1) Length O.A. : 32.00 m 2) Length B.P. : 27.23 m 3) Breadth Moulded : 12.48 m 4) Depth Moulded : 5.30 m 5) Draft Hull Moulded : 4.00 m 6) Gross Tonnage : Less than 500 GRT 7) Complement : 8 Pax 8) Bollard Pull : 65 Ton 9) Propeller type : FPP

LNG Fuel Gas Supply System (FGSS)

System consists of three major parts: 1) LNG Storage Tank x 2 on the main deck; 2) Bunker Station x 1 on the main deck; 3) Re-Gas Plant x 1 below main deck 4) Glycol water circulating module

LNG FGSS Overall

LNG Tanks: 1. Two LNG tanks per ship with below two Certificates:

1) ABS Cert for LNG Fuel Tank onboard; 2) LR Cert as ISO 20’ LNG container for transportation.

2. Can work in two modes: 1) Fixed LNG fuel tank working with bunker station

onboard; 2) Portable LNG tank container.

3. Capacity for one tank: 1) Gross: 20.6 m3

2) Net: 20.6 m3 (@ 90% Loading Limit)

4. Design Pressure: 1.0 MPa (Inner Vessel)

LNG Tanks:

Bunkering: 1. Quantity: One set at centre main deck between two tanks 2. Capacity: 36m3 LNG/Hour (Maximum) 3. With a simple electric Ship-Shore-Link(SSL) which is

approved by ABS. 4. Bunkering can be done in below two modes:

1) Fixed tank mode through bunker station onboard; 2) Portable tank mode by changing the tanks

Mode 1 Mode 2

Bunkering

SSL (Ship Shore Link)

LNG Re-Gas Plant: 1. Quantity: One set in Re-Gas Compartment below main deck 2. Vaporizer Capacity: 1100 Nm3/h (at 0oC and 1 atm) x 1 set 3. Fuel Gas Output Pressure: 5 – 6 Bar 4. Pressure Fluctuation Tolerance: 0.05 Bar / sec

Glycol Water Circulating Module

Dual Fuel Engine: 1. Model: Niigata 6L28AHX-DF 2. Quantity: two sets 3. Max Continuous Rating (MCR): 1920 KW x 2 sets 4. Rated Speed: 800 rpm 5. Gas Consumption: 328 kg/h per set 6. From Idling(18%) to Full Load (100%): 20 secs

Dual Fuel Engine:

Photo Gallery

HazID & HazOP before Project Started

Factory Acceptance Test

Bollard Pull Test

Naming Ceremony

Main Control Panel

Water Circulating System

Gas Detecting System

On Media

Other LNG Project

500m3 LNG Bunkering Barge

L: 90m B: 18m Design Draft: 2.65m LNG Tanks: 250m3 x 2

We have designed and supplied LNG Tanks and System for LNG Bunkering Barges in China. Six vessels were delivered.

Thank you For Your Attention Please go to our website for more information.

www.prostar-marine.com