Vantec Maritime Solutions Suite 2000, Oceanic Plaza, 1066 West Hastings Street Vancouver, BC,
Canada, V6E 3X2
Tel: +1 778 968 3464
Oceanlink Marine Services PTY LTD Service station 8/51 Industry Place, Wynnum, QLD 4178, Australia
Tel: +61 (0) 7 3136 2500
Delmar Marine Ltd.
Aydınlı Mahallesi Beyoglu Sanayi Sitesi E2 Blok No: 30, 34953 Tuzla-Istanbul-TURKEY
Tel : +90 216 494 46 90
Beimei Marine Services & Technical Inc. Unit #128 – 12520 Horseshoe Way Richmond, B.C. V7A 5K3 Canada
Tel: +1- 604-295-4835
European Marine Technology
Tel:+45 40 16 12 62
Dan Marine Europe LLC
14, Kekropos St., 19400 Koropi - Ag. Marina, Athens - Greece
Tel: +30-22910 26 118
Mob: +30-694 157 1159
Kobe Ocean Marine Consulting, Inc.
7F Gem Bldg., 2-3-2, Motomachi Dori, Chuo-ku, Kobe, Hyogo, 650-0022, Japan Tel: +81-78-381-6881
DMA Korea Office
A8114,0, Yeonje-ro, Yeonje-gu, Busan,
Tel: +82-51-744 0181
Loenen Repairs B.V. (Rotterdam)
Fortunaweg 13, 3113 AN Schiedam.
P.O. Box: 412 3100 Ak Schiedam. Tel:+31-10-4601611
MARITIME EQUIPMENT NORWAY AS
Kirkeheiveien 15 ,4517 Mandal Norway
M: +47 90 89 21 22
Email: firstname.lastname@example.org www.menorway.com
AC Flyn Refrigeration Ltd.
Unit 7, Millbrook Road, West Float Industrial Estate, Birkenhead, Merseyside, CH41 1FL, United Kingdom
Tel: +44-151-691 6130
Jobson Marocco Srl
Zone Franche Logistique sar Al Majaz – Tangermed
BP5243 DRADEB TANGER – MAROCCO Tel: +212 53 9930084
Email: email@example.com Mobile +212 661 772985
Dan Marine Singapore Pte. Ltd.
Level 24, CapitaGreen, 138 Market Street,
Tel +65 9067 5748
G2, 21/F., Block G,No.228, Sec. 1, Xinshi 1stRoad, Tamsui District,New Taipei City 251, Taiwan
Tel :+886-2-2622 7008 / +886-2-2622 709
KDU World Wide Technical Services FZC
Tel: +971-6-557 8581 / 557 5480
Mob: +971-551 069 169
Email: firstname.lastname@example.org www.kduworld.com
Room 1208, C.C Wu Building, 302-308 Hennessy Rd, Wanchai, Hongkong Tel: +852-2147 0874
Jobson Italia Srl
via delle Pianazze, 150 A, 19136 La Spezia (SP), Italy
Tel: +39-0187-984 201 / +39-0187-984 196
Consilium Marine India Pvt. Ltd.
Tel: +91 484 238 4298
Mob: +91 9446067267
Haya Air solutions PTY LTD
Harley Street 1,Pinetown,KwaZulu- Natal,3610, South Africa
Tel: +(27) 71 2201974
DMA Shanghai LTD email@example.com firstname.lastname@example.org www.dma-marine.com
Shanghai Dalian Guangzhou Nantong Fujian Wuhan Tianjin
Crosscomar Adan Marquez
C/Mastil, 6 – Pol.ind.Palmones II 11379 Los Barrios, Cadiz, Spain
Tel: (+34) 956 675 200
Marine Survey & Technology Services (Pvt) Ltd.
No 1, Alfred House Ave, Colombo 03 Tel: +94-11-4511 080
Mob: +94-777-562 800
Email: email@example.com www.msts.lk
To reduce SOx emissions from coastal trading ships and in environmental sensitive areas, the following regulations have been implemented worldwide:
EC (European Community) inland waterways, and at berth for > 2 hours, 0.1% Sulphur content by 1st January 2010.
CARB (California Air Resources Board) 0.1% Sulphur content by 1st January 2012.
Dueto more and more environmental legislation on fuel sulphur contents,the engines will operate on distillate fuels (marine gas oil (MGO) andmarine diesel oil (MDO)) in the future.
Risk on using Low-Sulphur Fuel Oil
Low-sulphur fuel oils are also low on viscosity compared to heavy fuel oil.
ISO8217:2005specifies MGO (DMA grade) with a viscosity of min. In order to enure asatisfactory hydrodynamic oil film between fuel pump plunger and barrel,thereby avoiding fuel pump seizures/sticking. Usually min. 2 cStmeasured is recommends to keep a fuel oil viscosity at the engine inlet.
ForMGO, viscosities below 2 cSt may be reached at temperatures above 35℃.As the fuel temperature increases during operation, it is impossible tomaintain this low temperature at the engine inlet. In the worst case, atemperature of 60-65 ℃ 0t the engine inlet can be expected correspondingto a viscosity far below 2.0 cSt. The consequence may be sticking fuelcomponents.
Onthe other hand, most pumps in the external system (supply pumps,circulating pumps, transfer pumps and feed pumps for the centrifuge)already installed in existing vessels need viscosities above 2 cSt tofunction properly.
DMA fuel cooling system
Fuel cooling system is an important and indispensable part to change-over unit.
As well-known factor, the viscosity can be raised by cooling of the fuel, after which the MGO / MDO fuels can then be used to ensure safe and reliable machinery performance.
Currently, the use of chillers (chilled water) in an external fuel supply system, called MGO / MDO Cooling System, is strongly recommended and applied to the marine industry.
The scope of supplies for MGO / MDO Cooling System is comprised of the followings: MG0/MDO
Water Pump Unit (including buffer tank)
Diesel Oil Cooler Unit
Oil temperatures are precisely controlled by PLC to keep drop rate within limits.
The chiller unit can be operated under low-capacity condition, 0-100% modulating control.
The chiller system is leakage safe.
Installation, commissioning & servicing of the cooling system is made simple & easy.
The system comprizes:
A Chiller Unit composes of either a piston or screw semi-hermetic compressor, a water-cooled shell & tube condenser, a dry-expansion evaporator, an expansion valve, a filter, a sight glass, a shut-off valve, a control box, etc.
The unit has compact structure, reliable performance and offers convenience for maintenance. And the unit can easily be put into operation after simple connection with power, to cooling water, and chilled water systems.
Water Pump Unit
The Water Pump Unit installed between the Chilling Unit and Diesel Oil Cooler Unit, consists of a pump and a pressurized buffer tank. Two Pumps, one for normal operation while the other serves as stand by, are equipped.
The Buffer Tank provides a reservoir for chilled water as well as for the regulation of chilled water fluctuation due to variational cooling loads in the system.
Diesel Oil Cooler Unit
The Diesel Oil Cooler Unit is connected to the fuel oil supply line controlling the fuel oil outlet temperature. It consists of an oil-water heat exchanger, a 3-way valve, a temperature sensor and a controller. The 3-way valve is installed in the cooling water line, whereas the temperature sensor is mounted at the heat exchanger oil outlet.
As an option, the Diesel Oil Cooler Unit can be mounted on a common skid together with the Water Pump Unit.
Selection of MGO cooling system
DMA also provides MGO cooling rerofit solution for old ships.
DMA has retrofitted MGO successfully for ship owner SEASPAN, Gleamray, TEO Shipping, etc, and has got great evaluation from ship owners.
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