58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
import pytest
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from reactor_sim.state import CoolantLoopState, TurbineState
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from reactor_sim.turbine import Turbine
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def test_turbine_spools_toward_target_output():
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turbine = Turbine()
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turbine.throttle = 1.0
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loop = CoolantLoopState(
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temperature_in=600.0,
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temperature_out=650.0,
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pressure=0.02,
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mass_flow_rate=20_000.0,
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steam_quality=0.9,
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)
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state = TurbineState(
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steam_enthalpy=0.0,
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shaft_power_mw=0.0,
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electrical_output_mw=0.0,
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condenser_temperature=300.0,
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)
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target_electric = min(
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turbine.rated_output_mw,
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300.0 * turbine.mechanical_efficiency * turbine.generator_efficiency,
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)
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dt = 1.0
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turbine.step(loop, state, steam_power_mw=300.0, dt=dt)
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assert 0.0 < state.electrical_output_mw < target_electric
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for _ in range(60):
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turbine.step(loop, state, steam_power_mw=300.0, dt=dt)
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assert state.electrical_output_mw == pytest.approx(target_electric, rel=0.05)
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def test_turbine_produces_no_power_without_steam():
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turbine = Turbine()
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loop = CoolantLoopState(
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temperature_in=295.0,
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temperature_out=295.0,
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pressure=6.0,
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mass_flow_rate=20_000.0,
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steam_quality=0.0,
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)
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state = TurbineState(
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steam_enthalpy=0.0,
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shaft_power_mw=0.0,
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electrical_output_mw=0.0,
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condenser_temperature=300.0,
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)
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turbine.step(loop, state, steam_power_mw=0.0, dt=1.0)
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assert state.electrical_output_mw == 0.0
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assert state.shaft_power_mw == 0.0
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