RO
UN
D T
HE
WO
RL
D R
OU
ND
TH
E C
LO
CK
v2a –
S&
S E
aA
Extern
al 28-M
ar-20
06
DMA Fuel Change-over and MGO Cooling System
For Retrofit and Newbuilding
REV2011041001
Engineering –Production –Installation –Commissioning
Specialist in Marine and Offshore HVAC Systems
www.dma-marine.com
1
Agenda
1. DMA introduction
2. Background
3. Process of HFO/MGO change over
4. Principle of MGO cooler system
5. Scope of Supply for DMA MGO System
6. Engineering and Design
7. Production and Fabrication
8. Installation
9. Commissioning
2
1. DMA Introduction
3
• DM Alscott• Factory established in 2003• JV established in 2008
Together, we do more.
2. Background
4
IMO have ratified 200 NM of the North American coastline as a SECA area by the Aug. 2012 – 0.1% Sulphur effective from January 1st 2015
2. Background
5
3. Process of HFO/MGO change over
6
Preferential position for Cooler
Optional position for Cooler
Change-over valve
3. Process of HFO/MGO change over
7
1. Regulate the index of engine, around 25~40%.
2. Shut off steam tracing & steam to pre-heater.
3. Monitor viscosity: 2 cSt ~ 20 cSt.
4. ViscoSense (4~20mA) signalinput the control box of DMA cooling system.
5. Start DMA cooling system, the chilled water is available in stand-by.
6. Initiate the change-over on touch screen from HFO to MGO. Then the MGO will add into circulating line gradually.
7. The rate of temperature drop of fuel inlet to the circulating line is controlled to not exceed 2 per minute. ℃
8. MGO cooler is ready to cool the fuel oil per the viscosity of fuel oil in circulating line.
4. Principle of MGO Cooler System
8
Basing on P&ID, the 3-way Valve is installed in the cooling water line, whereas the Temperature Sensor is mounted at the Plate Heat Exchanger oil outlet. The temperature of fuel outlet will be controlled by the Controller.
5. Scope of Supply for DMA MGO SYS.
9
5.1. Fuel change-over valve
5.2. Chiller unit
5.3. Pump unit
5.4. Buffer tank
5.5. PHE Cooler unit
5.6. Accessories
5. Scope of Supply for DMA MGO SYS.
10
Fig. 5.1 Change-over Valve
5. Scope of Supply for DMA MGO SYS.
11
Fig. 5.2 Marine Water-Cooled Chiller
5. Scope of Supply for DMA MGO SYS.
12
Fig. 5.3 Water Pump Unit
5. Scope of Supply for DMA MGO SYS.
13 Fig. 5.4 Buffer Tank
5. Scope of Supply for DMA MGO SYS.
14
Fig. 5.5 Fuel Oil Cooler Unit
6. Engineering and Design
15
6.1. Capacity calculation by Software
6. Engineering and Design6.2. P&ID
16
6. Engineering and Design
6.3. Program for MGO change-over
17
7. Production and Fabrication
7.1. Factory
18
7. Production and Fabrication
7.2. Assembly, Painting, Store
19
20
8. Installation8.1. Finding place for plants on vessel
21
8. Installation8.2. Finding place for control box
22
8. Installation8.3. Finding cooling-water source for chiller sys.
23
8. Installation8.4. Finding fresh-water source for chiller sys.
24
8. Installation8.5. Making foundation for plants
25
8. Installation8.6. Rigging and mounting
26
8. Installation8.7. Finding cutting points for AE
27
8. Installation8.8. Finding cutting point for ME
28
8. Installation8.9. Making isolated and bypass valves for fuel pump
29
8. Installation8.10. Connecting fuel piping
30
8. Installation8.11. Connecting water piping
31
8. Installation8.12. Making insulation for fuel piping
32
8. Installation8.13. Routing cable for plants
33
8. Installation8.14. Mounting change-over valve
34
8. Installation8.15. Mounting change-over valve
35
9. Commissioning9.1. Checking wiring
36
9. Commissioning9.2. Signing check list by Owner
37
9. Commissioning9.3. Signing check list by Owner
38
9. Commissioning9.4. Signing check list by Owner
Thanks for your interest in DMA.
For more information,
Please visit our Website :
Website: www.dma-marine.com
www.dma-marine.com
39