Operation Count-Down from 10 hours Mean Temperature LNG Quantity Time of All Sensors Required Count-Down [OC] [m3] [hours]... GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1DETAILED COOLIN
Trang 1N220 - TANK ANA - 1.6.5
GAZTRANSPORT & TECHNIGAZ
Project N 220
CARGO HANDLING STUDIES
SECTION 1 : TECHNICAL ANALYSIS
Section 1.6 : Special Studies
SAMSUNG HEAVY INDUSTRIES
Hull n° 1428
Technical Analysis N° : 1.6.5
COOLING-DOWN TABLES COOLANT QUANTITY
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1 03/10/02 Final Issue
0 04/06/02 First issue
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Trang 2; SAMSUNG N220 TANK ANA 1.6.5
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GAZTRANSPORT& TECHNIGAZ COOLANT QUANTITY 03/10/2002
N 220 Cargo Handling Design Studies Page: 2/19
TECHNICAL ANALYSIS N° : 1.6.5
REVISION SHEET
1 03/10/02 Final Issue Spray nozzle quantity
0 04/06/02 First Issue
Rev Date Description of revision Description of revision
Reference for revision
"This document is the property of GAZTRANSPORT & TECHNIGAZ It cannot be used, published or communicated without its express authorisation
Trang 3GAZTRANSPORT & TECHNIGAZ Date: 03/10/2002 Rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
Sheet 0 of 15
Cooling-Down Time 10 hours to ensure - 130 °C on Primary barrier
Total lNG Requirements 800 m3
LNG Density 470,0 kg/m3
LNG Vapor Latent Heat 499,1 kJ/kg for forced vaporisation process
LNG 1 Forced Gas HHV 53034 kJ/kg
50,269 MBTU/kg Cargo Tanks Volume 138 570 m3 (100 %)
Overall Cargo Tanks Area 24555 m2 on Primary Barrier
Insulation Thickness 0,270 m and Mark III "E" system
Overall Cargo Tanks 195290 MJ for stabilised gradient across insulation wall
Heat Energy Capacity (compartments temperature corresponding to IMO
external conditions; and - 162 °C inside cargo tanks)
Individual Sprayer 0,966 m3/hour when fed with fresh water
Flowrate at 2.0 bar g for EMANI "Whirljet" 3/4 BD 25 type
2 - PRIMARY BARRIER TEMPERATURE VARIATION VS TIME
According to the typical plot which is an average amongst numerous possible curves (as
observed on previous ships), then modelled by a 6th order polynomial function t(T)
Cooling-Down Time Primary Barrier
Mean Temperature
0 hour 30 °C
1 hour 12 °C
2 hours -20 °C
3 hours -47 °C
4 hours -67 °C
5 hours -85 °C
6 hours -100 °C
7 hours -113 °C
8 hours -118 °C
9 hours -125 °C
10 hours -130 °C
Trang 4GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
Sheet 1 of 5 CARGO TANK No.1 COOLING-DOWN: DETAILED TABLE (1°C INTERVAL)
Cargo Tank Volume 24587 m3 (100 %)
° Spraying Rate 16,50 m3/hour
Operation Count-Down from 10 hours
Mean Temperature LNG Quantity Time
of All Sensors Required Count-Down [OC] [m3] [hours]
Trang 5GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAM SUNG LNG CARRIER -138,570 m3
CARGO TANK No.1 COOLING-DOWN (Cont'd) Sheet 2 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required rOC] [m3] [hours]
Trang 6GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANK No.1 COOLING-DOWN (Cont'd) Sheet 3 of 5
Mean Temperature lNG Quantity Time
of All Sensors Required roC] [m3] [hours]
I
Trang 7GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
Mean Temperature LNG Quantity Time
of All Sensors Required [OC] [m3] [hours]
Trang 8GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANK No.1 COOLING.DOWN (Confd) Sheet 5 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required roC) [m3] [hours]
-126 13,S 0,82
Trang 9GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAM SUNG LNG CARRIER - 138,570 m3
Sheet 1 of 5 CARGO TANKS No.2 1 3 COOLING-DOWN: DETAILED TABLE (1°C INTERVAL)
Cargo Tank Volume 39454 m3 (100 %)
Cargo Tank Area 6738 m2 (on primary barrier)
Number of Sprayers 40
Spraying Rate 22,00 m3/hour
Operation Count-Down from 10 hours
of All Sensors Required Count-Down
~ ~$j;;
Trang 10GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
~~
CARGO TANKS No 2/3 COOLING-DOWN (Cont'd) Sheet 2 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required
Trang 11GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAM SUNG LNG CARRIER -138,570 m3
CARGO TANKS No 2/3 COOLING-DOWN (Cont'd) Sheet 3 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required
l
Trang 12GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANKS No 2/3 COOLING-DOWN (Cont'd) Sheet 4 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required roC] [m3] [hours]
I
I
Trang 13GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANKS No.2 / 3 COOLING-DOWN (Cont'd) Sheet 5 of 5
of All Sensors Required roC] [m3] [hours]
Trang 14GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
Sheet 1 of 5 CARGO TANK No.4 COOLING-DOWN: DETAILED TABLE (1°C INTERVAL)
0 Cargo Tank Volume 35075 m3 (100 %)
0 Cargo Tank Area 6 194 m2 (on primary barrier)
0 Number of Sprayers 36
0 Spraying Rate 19,80 m3/hour
0 Operation Count-Down from 10 hours
Mean Temperature LNG Quantity Time
of All Sensors Required Count-Down laC] [m3] [hours]
-~~~
Trang 15GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANK No: 4 COOUNG-DOWN (Cont'd) Sheet 2 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required
Trang 16GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANK No.4 COOLING-DOWN (Cont'd) Sheet 3 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required roC] [m3] [hours]
,.~~~l ,
Trang 17GAZTRANSPORT & TECHNIGAZ Date: 3/10/02 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANK No.4 COOLING-DOWN (Cont'd) Sheet 4 of 5
of All Sensors Required [OC] [m3] [hours]
t
I
Trang 18GAZTRANSPORT & TECHNIGAZ Date: 3/10102 rev: 1
DETAILED COOLING-DOWN TABLE: SAMSUNG LNG CARRIER -138,570 m3
CARGO TANK No 4 COOLING-DOWN (Cont'd) Sheet 5 of 5
Mean Temperature LNG Quantity Time
of All Sensors Required
.\