vaporizers
DESCRIPTION
comparison of LNG vaporizersTRANSCRIPT
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COMPARISION OF LNG VAPORIZERS IN PLL
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TYPES OF LNG VAPORIZER
Open Rack Vaporizer (ORV)
Direct Forced Draft Ambient Air Vaporizer
Direct Natural draft Ambient Air Vaporizer (AAV)
Ambient Air Heat Exchanger with Heat Transfer Fluid (AAV-
HTF)
Submerged Combustion
Vaporizer (SCV)
TYPES OF LNG VAPORIZERS AROUND THE WORLD
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VAPORIZER IN PLL
SHELL AND TUBE VAPORIZER
SUBMERGED COMBUSTION VAPORIZER
E-109
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SHELL AND TUBE VAPORIZER
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LNG
WARM GW WATER
NG
COLD GW WATER
AIR HEATERS
GW PUMP
SHELL AND TUBE VAPORIZER
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SHELL AND TUBE VAPORIZERE-104A/G E-105A/G (Units-14)
SHELL SIDE (ETHYLENE GYLCOL)
TUBE SIDE (LNG)
INLET OUTLET INLET OUTLET
TOTAL FLOW(t/hr) 1187.3 88.175
OPERATING TEMPERTURE (°C)
16 2 -156 0
DESIGN TEMPERATURE(°C)
-165/60 -165/60
OPERATING PRESSURE (barG)
2.5 91.8
DESIGN PRESSURE (barG)
10 130
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SUBMERGED COMBUSTION VAPORIZER
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• BLOWER• HOT WATER
PUMP
BURNER MODE
• FUEL GAS CONSUMPTION
• BLOWER
COMBINED MODE
• BURNER• COGEN
E-107A/B & E-106A/BUNITS -4
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SCV PRINCIPLE
• The SCV system uses natural gas/ hot water from CPP as its heat source and requires electrical power to operate combustion air blowers and circulating water pumps.
• LNG is routed to a stainless steel tube bundle that is submerged in a water bath.
• Transfer of heat takes place from gas water mixture to the tube coil & then to process fluid.
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DESIGN CONDITIONS
FUEL GASCONDITIONS
CAPACITYAIR CONDITIONS
PARAMETERS
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E-109
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LNG
WARM GW WATER
NG
COLD GW WATER
GW PUMPPLATE AND FIN
EXCHANGER
HW
HW
E-109
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SHELL SIDE (ETHYLENE GYLCOL)
TUBE SIDE (LNG)
INLET OUTLET INLET OUTLET
TOTAL FLOW(t/hr) 247.3 99.35
OPERATING TEMPERTURE (°C)
90 12 -153.6 0
DESIGN TEMPERATURE(°C)
-165/173 -165/173
OPERATING PRESSURE (barG)
5.14 60
DESIGN PRESSURE (barG)
10 130
PARAMETERS
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COST/ENERGY CALCULATIONS OF VAPORIZERS
• REVIEW POWER CONSUMPTION.docx
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EQUIPMENT NAME
TOTAL ENERGY CONSUMPTION PER
DAY(Kwh)
OPERATIONAL COST
PER DAY (Rs)
CAPITAL COST(per
vaporizer)
STV (PHASE-1) 12,048 35,023.53 18 cr
STV (PHASE-2) 12,288 35,721.21 20 cr
SCV(COGEN) 10,248 29,790.93
31.25 CrSCV(BURNER)
(Phase-1)7080+ Rs 233,304
253,885.00
E-109 2880 8,372.16
POWER/COST CALCULATIONS
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OUTPUT COMPARISIONEQUIPMENTS OUTPUT
FLOWRATE (ton/hr)
PER DAY OUTPUT
FLOWRATE(ton/DAY)
FLOWRATE (MMBTU/DAY)
OUTPUT GAS
PRICE/Day
STV(PHASE-1) 88.175 2116.2 100,519.5 29,854,143
STV(PHASE-2) 88.175 2116.2 100,519.5 29,854,143
SCV(COGEN)(PHASE-1)
100 2400 114,000 33,858,000
SCV(BURNER)(PHASE-1)
100 2400 114,000 33,858,000
E-109 99.35 2384.4 122,550 36,397,350
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BREAKEVEN ANALYSIS
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STV
24 dayz for breakeven
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SCV(cogen)
38 dayz for breakeven
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CONCLUSIONVAPORIZATION TECHNOLOGY
TECHNICAL RISKS
ENVIORNMENTAL CONCERS
COSTS (CAPITAL)
COSTS (OPERTING)
OPERABILITY & MAINTENANCE
LAYOUT ISSUES
SUBMERGED COMBUSTION VAPORIZATION ….. .. O O O ….. ..O O O …O O ….O
SHELL AND TUBE VAPORIZTION …O O …O O ..O O O …O O ..O O O …O O
E-109 ..O O O ..O O O …O O ..O O O ..O O O …O O