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example9.txt
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example9.txt
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# Example 9: Geothermal Direct-Use Heat using Multiple Parallel Fractures Model (EGS)
# This problem considers an EGS reservoir at 3.5 km depth for ORC electricity production (Cornell conditions).
# Ramey's model is applied to simulate production wellbore heat losses. The heat
# is used in for direct-use heating with a reinjection temperature of 60deg.C.
# ***Subsurface technical parameters***
# *************************************
Reservoir Model,1, ---Multiple Fractures reservoir model
Reservoir Depth,3.8, ---[km]
Number of Segments,1, ---[-]
Gradient 1,28, ---[deg.C/km]
Maximum Temperature,400, ---[deg.C]
Number of Production Wells,1, ---[-]
Number of Injection Wells,1, ---[-]
Production Well Diameter,7, ---[inch]
Injection Well Diameter,7, ---[inch]
Ramey Production Wellbore Model,1, ---0 if disabled 1 if enabled
Injection Wellbore Temperature Gain,0, ---[deg.C]
Production Flow Rate per Well,40, ---[kg/s]
Fracture Shape,3, ---[-] Should be 1 2 3 or 4. See manual for details
Fracture Height,700, ---[m]
Reservoir Volume Option,1, ---[-] Should be 1 2 3 or 4. See manual for details
Number of Fractures,5, ---[-]
Fracture Separation,100, ---[m]
Reservoir Impedance,0.05, ---[GPa*s/m3]
Water Loss Fraction,.02, ---[-]
Productivity Index,5, ---[kg/s/bar]
Injectivity Index,5, ---[kg/s/bar]
Injection Temperature,60, ---[deg.C]
Maximum Drawdown,1, ---[-] no redrilling considered
Reservoir Heat Capacity,825, ---[J/kg/K]
Reservoir Density,2730, ---[kg/m^3]
Reservoir Thermal Conductivity,2.83, ---[W/m/K]
# ***SURFACE TECHNICAL PARAMETERS***
# **********************************
End-Use Option,1, ---[-] Electricity
Power Plant Type, 1, ---[-] Subcritical ORC
Circulation Pump Efficiency,.8, ---[-]
Utilization Factor,.9, ---[-]
End-Use Efficiency Factor,0.9, ---[-]
Surface Temperature,20, ---[deg.C]
Ambient Temperature,20, ---[deg.C]
Electricity Rate,0.1, ---Electricity rate for pumping power [$/kWh]
# ***FINANCIAL PARAMETERS***
# **************************
Plant Lifetime,30, ---[years]
Economic Model,1, ---[-] Fixed Charge Rate Model
Fixed Charge Rate,.05, ---[-] between 0 and 1
Inflation Rate During Construction,0, ---[-]
# ***CAPITAL AND O&M COST PARAMETERS***
# *************************************
Well Drilling and Completion Capital Cost Adjustment Factor,1, ---[-] Use built-in correlations
Well Drilling Cost Correlation,1, ---[-] Use built-in correlations
Reservoir Stimulation Capital Cost Adjustment Factor,1, ---[-] Use built-in correlations
Surface Plant Capital Cost Adjustment Factor,1, ---[-] Use built-in correlations
Field Gathering System Capital Cost Adjustment Factor,1, ---[-] Use built-in correlations
Exploration Capital Cost Adjustment Factor,1, ---[-] Use built-in correlations
Wellfield O&M Cost Adjustment Factor,1, ---[-] Use built-in correlations
Surface Plant O&M Cost Adjustment Factor,1, ---[-] Use built-in correlations
Water Cost Adjustment Factor,1, ---[-] Use built-in correlations
# ***Simulation Parameters***
# ***************************
Print Output to Console,1, ---[-] Should be 0 (don't print results) or 1 (print results)
Time steps per year,6, ---[1/year]