Adjust pump statuses for power loss and add nominal displays

src/reactor_sim/constants.py

@@ -27,6 +27,7 @@ PUMP_POWER_MW = 12.0  # MW draw per pump unit
 BASE_AUX_LOAD_MW = 5.0  # control, instrumentation, misc.
 NORMAL_CORE_POWER_MW = 3_000.0
 TEST_MAX_POWER_MW = 4_000.0
+PRIMARY_OUTLET_TARGET_K = 580.0
 # Threshold inventories (event counts) for flagging common poisons in diagnostics.
 KEY_POISON_THRESHOLDS = {
     "Xe": 1e20,  # xenon

src/reactor_sim/dashboard.py

@@ -373,8 +373,8 @@ class ReactorDashboard:
                     f"{state.primary_loop.mass_flow_rate:7.0f}/{self.reactor.primary_pump.nominal_flow * len(self.reactor.primary_pump_units):.0f} kg/s",
                 ),
                 ("Inlet Temp", f"{state.primary_loop.temperature_in:7.1f} K"),
-                ("Outlet Temp", f"{state.primary_loop.temperature_out:7.1f} K"),
+                ("Outlet Temp", f"{state.primary_loop.temperature_out:7.1f} K (Target {constants.PRIMARY_OUTLET_TARGET_K:4.0f})"),
-                ("Pressure", f"{state.primary_loop.pressure:5.2f} MPa"),
+                ("Pressure", f"{state.primary_loop.pressure:5.2f}/{constants.MAX_PRESSURE:4.1f} MPa"),
             ],
         )
         self._draw_section(
@@ -384,10 +384,13 @@ class ReactorDashboard:
             [
                 ("Pump1", self._pump_status(state.secondary_pumps, 0)),
                 ("Pump2", self._pump_status(state.secondary_pumps, 1)),
-                ("Flow", f"{state.secondary_loop.mass_flow_rate:7.0f} kg/s"),
+                (
-                ("Inlet Temp", f"{state.secondary_loop.temperature_in:7.1f} K"),
+                    "Flow",
-                ("Pressure", f"{state.secondary_loop.pressure:5.2f} MPa"),
+                    f"{state.secondary_loop.mass_flow_rate:7.0f}/{self.reactor.secondary_pump.nominal_flow * len(self.reactor.secondary_pump_units):.0f} kg/s",
-                ("Steam Quality", f"{state.secondary_loop.steam_quality:5.2f}"),
+                ),
+                ("Inlet Temp", f"{state.secondary_loop.temperature_in:7.1f} K (Max {constants.PRIMARY_OUTLET_TARGET_K:4.0f})"),
+                ("Pressure", f"{state.secondary_loop.pressure:5.2f}/{constants.MAX_PRESSURE:4.1f} MPa"),
+                ("Steam Quality", f"{state.secondary_loop.steam_quality:5.2f}/1.00"),
             ],
         )
 

src/reactor_sim/reactor.py

@@ -230,23 +230,25 @@ class Reactor:
                 unit_enabled = (
                     self.primary_pump_active and idx < len(self.primary_pump_units) and self.primary_pump_units[idx]
                 )
+                powered = power_ratio > 0.1
                 desired_flow = target_flow if unit_enabled else 0.0
                 desired_pressure = target_pressure if unit_enabled else 0.5
+                if not powered:
+                    desired_flow = 0.0
+                    desired_pressure = 0.5
                 pump_state.flow_rate = self._ramp_value(
                     pump_state.flow_rate, desired_flow, dt, self.primary_pump.spool_time
                 )
                 pump_state.pressure = self._ramp_value(
                     pump_state.pressure, desired_pressure, dt, self.primary_pump.spool_time
                 )
-                pump_state.active = (unit_enabled and power_ratio > 0.05) or pump_state.flow_rate > 1.0
+                pump_state.active = unit_enabled and powered and pump_state.flow_rate > 1.0
-                if unit_enabled and pump_state.flow_rate < max(1.0, desired_flow * 0.8):
+                if not powered or not unit_enabled:
+                    pump_state.status = "STOPPING" if pump_state.flow_rate > 1.0 else "OFF"
+                elif pump_state.flow_rate < max(1.0, desired_flow * 0.8):
                     pump_state.status = "STARTING"
-                elif not unit_enabled and pump_state.flow_rate > 1.0:
-                    pump_state.status = "STOPPING"
-                elif pump_state.active:
-                    pump_state.status = "RUN"
                 else:
-                    pump_state.status = "OFF"
+                    pump_state.status = "RUN"
                 total_flow += pump_state.flow_rate
                 loop_pressure = max(loop_pressure, pump_state.pressure)
             state.primary_loop.mass_flow_rate = total_flow
@@ -273,28 +275,30 @@ class Reactor:
             total_flow = 0.0
             target_pressure = 12.0 * 0.75 + 2.0
             loop_pressure = 0.5
-            target_flow = self.secondary_pump.flow_rate(0.75)
+            target_flow = self.secondary_pump.flow_rate(0.75) * power_ratio
             for idx, pump_state in enumerate(state.secondary_pumps):
                 unit_enabled = (
                     self.secondary_pump_active and idx < len(self.secondary_pump_units) and self.secondary_pump_units[idx]
                 )
+                powered = power_ratio > 0.1
                 desired_flow = target_flow if unit_enabled else 0.0
                 desired_pressure = target_pressure if unit_enabled else 0.5
+                if not powered:
+                    desired_flow = 0.0
+                    desired_pressure = 0.5
                 pump_state.flow_rate = self._ramp_value(
                     pump_state.flow_rate, desired_flow, dt, self.secondary_pump.spool_time
                 )
                 pump_state.pressure = self._ramp_value(
                     pump_state.pressure, desired_pressure, dt, self.secondary_pump.spool_time
                 )
-                pump_state.active = unit_enabled or pump_state.flow_rate > 1.0
+                pump_state.active = unit_enabled and powered and pump_state.flow_rate > 1.0
-                if unit_enabled and pump_state.flow_rate < max(1.0, desired_flow * 0.8):
+                if not powered or not unit_enabled:
+                    pump_state.status = "STOPPING" if pump_state.flow_rate > 1.0 else "OFF"
+                elif pump_state.flow_rate < max(1.0, desired_flow * 0.8):
                     pump_state.status = "STARTING"
-                elif not unit_enabled and pump_state.flow_rate > 1.0:
-                    pump_state.status = "STOPPING"
-                elif pump_state.active:
-                    pump_state.status = "RUN"
                 else:
-                    pump_state.status = "OFF"
+                    pump_state.status = "RUN"
                 total_flow += pump_state.flow_rate
                 loop_pressure = max(loop_pressure, pump_state.pressure)
             state.secondary_loop.mass_flow_rate = total_flow