example4.txt

# Example 4: Geothermal Electricity Example Problem using Percentage Thermal Drawdown Model
# This example problem considers a simple hydrothermal reservoir
# at 2 km depth with an initial production temperature of 145deg.C. The thermal drawdown
# is assumed linear at 0.5%/year. The heat is converted to electricity with a subcritical ORC.

# *** Subsurface technical parameters ***
# ****************************************
Reservoir Model,4,			--- Percentage thermal drawdown model
Drawdown Parameter,0.005, 		--- In [1/year].
Reservoir Depth,2, 			--- [km]
Number of Segments,1,			--- [-]
Gradient 1,65, 				--- [deg.C/km]
Number of Production Wells,3,		--- [-]
Number of Injection Wells,2,		--- [-]
Production Well Diameter,9.625,		--- [inch]
Injection Well Diameter,9.625,		--- [inch]
Ramey Production Wellbore Model,0,	--- Should be 0 (disable) or 1 (enable)
Production Wellbore Temperature Drop,0,	--- [deg.C]
Injection Wellbore Temperature Gain,0,	--- [deg.C]
Production Flow Rate per Well,110, 	--- [kg/s]
Maximum Temperature,375,		--- [deg.C]
Reservoir Volume Option,4,		--- Should be 1 2 3 or 4. See manual for details.
Reservoir Volume,1e9,			--- [m3] (required for reservoir volume option 3 and 4
Water Loss Fraction,0.0,		--- [-] (total geofluid lost)/(total geofluid produced)
Injectivity Index,10,			--- [kg/s/bar]
Productivity Index,10,			--- [kg/s/bar]
Injection Temperature,70,		--- [deg.C]
Maximum Drawdown,1,			--- [-] Maximum allowable drawdown before redrilling (a value of 0.1 means redrilling of 10% drawdown)
Reservoir Heat Capacity,1050,		--- [J/kg/K]
Reservoir Density,2700,			--- [kg/m3]
Reservoir Thermal Conductivity,3,	--- [W/m/K]


# *** Surface technical parameters ***
# ************************************
End-Use Option,1,			--- [-] Electricity
Power Plant Type,1,			--- [1] Subcritical ORC
Circulation Pump Efficiency,0.8,	--- [-]
Utilization Factor,0.9,			--- [-]
Surface Temperature,15,			--- [deg.C]
Ambient Temperature,15,			--- [deg.C]

# *** Economic/Financial Parameters ***
# *************************************
Plant Lifetime,30,			--- [years]
Economic Model,3,			--- Should be 1 (FCR model) 2 (Standard LCOE/LCOH model) or 3 (Bicycle model).
Fraction of Investment in Bonds,0.65,	--- [-] Required if Bicycle model is selected. See manual for details.
Inflated Bond Interest Rate,0.07,	--- [-] Required if Bicycle model is selected. See manual for details.
Inflated Equity Interest Rate,0.12,	--- [-] Required if Bicycle model is selected. See manual for details.
Inflation Rate,0.025,			--- [-] Required if Bicycle model is selected. See manual for details.
Combined Income Tax Rate,0.392,		--- [-] Required if Bicycle model is selected. See manual for details.
Gross Revenue Tax Rate,0,		--- [-] Required if Bicycle model is selected. See manual for details.
Investment Tax Credit Rate,0,		--- [-] Required if Bicycle model is selected. See manual for details.
Property Tax Rate,0,			--- [-] Required if Bicycle model is selected. See manual for details.
Inflation Rate During Construction,0,	--- [-]
Well Drilling and Completion Capital Cost Adjustment Factor,1,	--- [-] Use built-in well cost correlation as is
Well Drilling Cost Correlation,1,				--- [-] Use built-in well drilling cost correlation #1
Reservoir Stimulation Capital Cost,0,				--- [M$/injection well] Reservoir stimulation capital cost per injection well
Surface Plant Capital Cost Adjustment Factor,1,			--- [-] Use built-in surface plant cost correlation as is
Field Gathering System Capital Cost Adjustment Factor,1,		--- [-] Use built-in pipeline distribution cost correlation as is
Exploration Capital Cost Adjustment Factor,1,			--- [-] Use built-in exploration cost correlation as is
Wellfield O&M Cost Adjustment Factor,1,				--- [-] Use built-in wellfield O&M cost correlation as is
Water Cost Adjustment Factor,1,					--- [-] Use built-in water cost correlation as is
Surface Plant O&M Cost Adjustment Factor,1,			--- [-] Use built-in surface plant O&M cost correlation as is


# *** Simulation Parameters ***
Print Output to Console,1,		--- [-] Should be 0 (don't print results to console) or 1 (print results to console)
Time steps per year,4,			--- [1/year]