BOG handling
Accumulation
GCU, AUX.or composite boiler
Re-liquefaction
Sub-cooling
Collecting tank
Holding time
IGF
15 days
CCC9
undefined (need clarification)
[LR] : minumum 15 days, available at all time
[DNV] : infinite
Storage options
Pressurized (pressurize upto 18 bar)
Refrigerated
Semi-pressurized / refrigerated
Excluded option?
Type A tank (MARVES :0.7 bar)
Type C Tank (MARVES: 4 bar)
Alternative design needed (CCC)
BOG handling method needed (provision)
BOG handling method needed (provision)
1. Accumulation + BOG free flow w/ GCU (Em'cy)
2. BOG comp. with GCU + Accumulation + Free flow w/ GCU (Em'cy)
3. Re-liquefaction + Accumulation + Free flow w/ GCU (Em'cy)
For BOG free flow option
SAACKE, KANGRIM, ALFA LAVAL
15K CNTR (priority)
BOG Compressor (abt. 200 kg/h)
100kW (as cooling capacity) w/ 50 kW (as power consumption)
Oil free type.
Oil lube. type (<0.7 ppm)
Screw type
DONGWHA 뉴택, MYCOM
Suction flow : 300 kg/h
w/o Economizer
Operating condition (NSG)
VLAC
96 ~ 540 kg/h (4~6 bar)
15K CNTR
157 COT
to be reviewed
to be reviewed
Operating case
W/O Fire case & Emergency case
Tank return (normal operation)
To be reviewed of addtional BOG due to Tank return flow
[ABS] : 15 days remains valid (until ABS requirement revised)
Bunkering case
Loading time / procedure to be revied
Vapor treatment
BOG handling equipment not required (Vapor return)
10 hr loading condition (present)
157K TK : 800m3/h
15K CNTR : 1800m3/h
Air liquid 문의
Redundant BOG handling method (Em'cy)
Scrubbing / Absorbing of BOG into water (concept)
[ABS] ❌ acceptable
[LR] : Refer to UR-H1
[DNV] : Not allowed (shall not release gas)
CCC10
to be updated...