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example9.txt
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example9.txt
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GEOPHIRES v2.0 Input File
Created on 2018-06-11
Last modified on 2023-11-20
Geothermal Direct-Use Heat using Multiple Parallel Fractures Model (EGS)
Example 9 Description: 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]