Design-challenge-Geothermal-binary-cycle-power-plant.xlsx

	B	C	D	E
1	Design Challenge for EnergyExcursions.com Course:
2	Energy is a Hot Topic (Geothermal Binary Cycle Power Plant in Texas)
3	Inputs	Value	Symbol	Equation Notes
4	Geothermal Powerplant Efficiency		η**
5	Subsurface Reservoir Temperature (℃)		Tres
6	Volumetric Flowrate (lit/hr)		Q
7	Temperature Drop (℃) at Surface		ΔT
8	Outputs
9	Water Density (g/ml)		m=ρ*Q
10	Injection Flowrate - Mass (kg/s)	0
11	Output Temperature at Surface (℃)	0	Tout=Tres - ΔT
12	Enthalpy (kJ/kg)		h***
13	Total Energy Delivered (kJ/s)	0.00	H=m*h	Total energy delivered (energy per time) = Injection Flow Rate (mass per time) * Specific Enthalpy (energy per unit mass)
14	Expected Electrical Power (MW)	0.00	E=η*H	Electrical Power (MW) = Geothermal Power Plant Efficiency (no units) * Total Energy Delivered ( kJ/s) / 1000 (to convert kW to MW)
15	Number of powered homes	0		Number of homes = 200 homes * Electrical Power (MW)
16
17	Sources:
18
19	https://www.eia.gov/energyexplained/geothermal/geothermal-power-plants.php
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21	According to ERCOT, 1 MW of electricity can power about 200 Texas homes during periods of peak demand.
22	https://comptroller.texas.gov/economy/fiscal-notes/2020/august/ercot.php
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