process flow and gathering system - geoelec · process flow and gathering system ... condenser t cw...
TRANSCRIPT
![Page 1: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/1.jpg)
Process flow and gathering system
Session VI
Elín Hallgrímsdóttir and Lilja Tryggvadóttir
Mannvit Strasbourg, Nov.8, 2012
![Page 2: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/2.jpg)
Presentation overview
• Presentations reviewing different work cycles
• Main concept of the gathering system
• Calculated example showing methods used within geothermal steam gathering system design
![Page 3: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/3.jpg)
![Page 4: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/4.jpg)
![Page 5: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/5.jpg)
Geothermal in Iceland
![Page 6: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/6.jpg)
Process flow
• A review of thermodynamic cycles used in geothermal energy production with emphasis on electricity generation
• Flash steam cycles with single flash and double flash as well as different binary cycles as ORC and Kalina Cycle are introduced and compared
![Page 7: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/7.jpg)
Back Pressure Steam Power Plant
Steam separator
Turbine Generator
G
Production wells Reinjection wells
Phigh
Plow
2 phase flow Vapor
Liquid
![Page 8: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/8.jpg)
Back pressure unit - layout Separator
Machine Hall
Electrical cabinets & Control room
Asphalted area for installation and maintenance purposes
![Page 9: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/9.jpg)
0
100
200
300
400
500
600
700
00,20,40,60,811,2
Turb
ine
Po
we
r [k
J/kg
]
Turbine outlet pressure [bara]
Calculated examples Different turbine outlet pressure
![Page 10: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/10.jpg)
G
Production wells
Geothermal fluid
Steam separator
Turbine
Condenser
Steam Generator
Silencer
Mist eliminator
Water
Condensate
Condensate
Cooling tower
Reinjection wells
Gas Extraction System
Steam Power Plant with Condenser
![Page 11: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/11.jpg)
![Page 12: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/12.jpg)
![Page 13: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/13.jpg)
Steam Power Plant – Double Pressure
G
Production wells
Two phase flow Turbine - generator HP steam
LP steam
Reinjection wells
Condenser Tcw
Cooling system
Steam separator
LP Steam separator
Two phase flow
![Page 14: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/14.jpg)
Svartsengi – the“Octopus”
![Page 15: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/15.jpg)
Steam Power Plant – Double Flash
Production wells Reinjection wells
G
Steam supply system Turbine - generator Primary steam
Secondary steam
Condenser Tcw
Cooling system
G
LP Turbine - generator
Tcw
Cooling system
Steam separator
LP Steam separator
![Page 16: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/16.jpg)
Hellisheiði – low pressure unit
![Page 17: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/17.jpg)
Steam Power Plant w. District Heating
G
Production wells
Steam supply system Turbine - generator Primary steam
Reinjection wells
Condenser
Tcw
Cooling system
Steam separator
District heating system
Freshwater wells
To district heating
![Page 18: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/18.jpg)
District heating plant
![Page 19: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/19.jpg)
25. 02. 2008
Production wells
Two phase flow
Steam separators
Geothermal water
Steam
Well head silencers
Re-injection wells
Pressure
regulation
Geothermal water
emergency exhaust
Turbines
Generators
Mist separators
Cooling
towers
Hot water tank
Cold water pump
Condensers
Heat exchangers
De-aerators
De-aerators
Condensers
Process Flow Diagram
![Page 20: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/20.jpg)
G Tsource
Tdischarge
Phigh
Plow
Condenser
Turbine Generator
Circulation pump
Evaporator
Tcw
Cooling system
Binary Cycles
![Page 21: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/21.jpg)
G Tsource
Tdischarge
Phigh
Plow
Tcw Condenser
Turbine Generator
Circulation pump
Evaporator
Recuperator
Cooling system
Binary Cycles – with Recuperation
![Page 22: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/22.jpg)
Binary Plant Berlin – El Salvador LaGeo
![Page 23: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/23.jpg)
G
Separator
High temp recuperator
Low temp recuperator
Condenser
Evaporator
Turbine Generator
Tsource
Tdischarge
Tcw
Circulation pump
Cooling system
Binary Cycles – Kalina
![Page 24: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/24.jpg)
Húsavik Kalina plant
![Page 25: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/25.jpg)
2 0 02 5 03 0 03 5 04 0 04 5 05 0 05 5 0
2 0
4 0
6 0
8 0
1 0 0
1 2 0
1 4 0
Heat transfer
Tem
pera
ture
0 0 , 2 0 , 4 0 , 6 0 , 8 1
5 0
6 0
7 0
8 0
9 0
1 0 0
1 1 0
1 2 0
Heat Transfer
Te
mp
era
ture
ORC Kalina
![Page 26: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/26.jpg)
G
Tsource
Tdischarge
Cooling system
Binary Cycles – Kalex
![Page 27: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/27.jpg)
Work Cycle Comparison Specific Power
![Page 28: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/28.jpg)
0
2
4
6
8
10
12
80 85 90 95 100 105 110 115 120 125 130
€/W
Inlet Temperature [°C]
Kalina
Kalex
ORC
Work Cycle Cost Comparison
![Page 29: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/29.jpg)
G
G
G
Steam supply system Turbine - generator
Primary binary turbine - generator
Evaporator
Secondary binary turbine - generator
Cooling system
Cooling system
Production wells Reinjection wells
![Page 30: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/30.jpg)
Demonstration of model
• Turboden ORC model: http://www.turboden.eu/en/rankine/rankine-calculator.php
![Page 31: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/31.jpg)
Gathering System
• This session will present an overview of the design process of a geothermal gathering system with emphasis on particularities of the geothermal fluid.
![Page 32: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/32.jpg)
Two phase flow
Steam separators
Geothermal
water
Steam
Re-injection wells
Pressure
relief Production wells
Turbines
Generators
Mist separators
Cooling
towers
Condensers
Steam Supply - Preliminary P&ID
emergency exhaust
![Page 33: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/33.jpg)
Nesjavellir Power Plant
Separation
station
Steam vent
station
Steam
pipelines
Two phase
flow
Power
Plant
Production
Well
Cooling towers
![Page 34: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/34.jpg)
Gathering system- Design
• Design standards
• Standards i.e. Pressure directive 97/23/EC
• Pressure selection • Chemical constraints
• Power generation
• Productivity curves
0
200
400
600
800
1000
1200
1400
1.00 10.00 100.00
SiO
2(m
g/k
g)
Pressure (bar-a)
quartz solubility (F&P82)
amorphous silica solubility (F77)
330 °C
300 °C
270 °C
240 °C
![Page 35: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/35.jpg)
Chemical constraints
• Scaling
• Corrosivity
• Radioactivity
Mitigation:
• Pressure control / closed loop system
• „cleaning“ of the steam
• Inhibitors
![Page 36: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/36.jpg)
h = 1600 kJ/kg
h = 1800 kJ/kg
h = 2000 kJ/kg
h = 2200 kJ/kg
0
50
100
150
200
250
300
350
400
450
500
0 2 4 6 8 10 12 14 16 18 20
Turb
ine
po
we
r [k
J/kg
]
Separator pressure [bara]
Assumptions: Total turbine efficiency: 0,8
Power generation
![Page 37: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/37.jpg)
Typical productivity curves
![Page 38: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/38.jpg)
Well Pump – Low Enthalpy
• Type
• Submersible pump
• Line shaft pump
• Selection and operation
• Depth
• Temperature
• Scaling
• Bubble point
![Page 39: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/39.jpg)
Gathering System– Design load
• Constant load – Weight – Pressure
• Variable load (depending on location) – Wind load – Snow load – Earthquake
• Frictional load – Thermal expansion – Friction
![Page 40: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/40.jpg)
Gathering System - Pipelines
• Pipe laying
• Under ground
• Above ground
• Material selection
• Pipe size
• Pressure/temperature
![Page 41: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/41.jpg)
Steam Supply System – Pipelines
300
400
500
600
700
800
900
1000
0 20 40 60 80 100 120 140 160
Pip
e d
iam
ete
r [m
m]
Flow [kg/s]
7 bar-a
20 bar-a
![Page 42: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/42.jpg)
Gathering system – route selection
• Public safety
• Environmental impact
• Restriction on land
• Cost efficiency
![Page 43: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/43.jpg)
Steam pipelines
![Page 44: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/44.jpg)
Steam Supply - Layout
• Central separation station
• Satellite separation stations
• Individual separators
Central Satellite Individual
![Page 45: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/45.jpg)
Power plant layout
![Page 46: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/46.jpg)
![Page 47: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/47.jpg)
Steam Supply - Separators
• Cyclone separators
• Gravity separators
• Efficiency
• Steam separator and moisture separator should together achieve 99,99 % bw. liquid removal or better
![Page 48: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/48.jpg)
Calculated example
• The presenter will go through a calculated example to show methods used for basic engineering within steam gathering system design. The example taken will be connected to the special conditions encountered in geothermal energy.
![Page 49: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/49.jpg)
Example • Example for 1200 kJ/kg well enthalpy
– 40-50°C condensing temperature
– Back pressure
• Objective
– Maximize the power production
![Page 50: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/50.jpg)
• Assumptions
– We know the reservoir enthalpy
– We know the condenser temperature
– Separation pressure does not influence the well flow
![Page 51: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/51.jpg)
Example, condensing unit
![Page 52: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/52.jpg)
Example, condensing unit
• The maximum power will be 12,4 MW
– Entalpy = 1200 kJ/kg
– Condensing pressure 0,075 bara / temperature 40°C
– Separation pressure 6 bara
– Flow 100 kg/s
• What if we selected backpressure instead?
![Page 53: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/53.jpg)
Example, back pressure
![Page 54: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/54.jpg)
Example, back pressure
• The maximum power will be 6,4 MW
– Entalpy = 1200 kJ/kg
– Separation pressure 12 bara
– Flow 100 kg/s
![Page 55: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/55.jpg)
Example
• Optimum separation pressure is 6 bara, is that ok?
• Saturation temperature for 1200 kJ/kg is 273°C
0
200
400
600
800
1000
1200
1400
1.00 10.00 100.00
SiO
2(m
g/k
g)
Pressure (bar-a)
quartz solubility (F&P82)
amorphous silica solubility (F77)
330 °C
300 °C
270 °C
240 °C
![Page 56: Process flow and gathering system - Geoelec · Process flow and gathering system ... Condenser T cw Cooling system Steam separator LP Steam separator Two phase flow. Svartsengi –](https://reader030.vdocuments.us/reader030/viewer/2022021512/5af56a077f8b9a9e598e00be/html5/thumbnails/56.jpg)
Thank You! VISIT GEOELEC.EU