Add delayed kinetics and steam-drum balance

src/reactor_sim/reactor.py

@@ -95,6 +95,7 @@ class Reactor:
             reactivity_margin=-0.02,
             power_output_mw=0.1,
             burnup=0.0,
+            delayed_precursors=[0.0 for _ in constants.CONTROL_ROD_BANK_WEIGHTS],
             fission_product_inventory={},
             emitted_particles={},
         )
@@ -387,7 +388,7 @@ class Reactor:
         else:
             transferred = heat_transfer(state.primary_loop, state.secondary_loop, total_power)
         self.thermal.step_core(state.core, state.primary_loop, total_power, dt)
-        self.thermal.step_secondary(state.secondary_loop, transferred)
+        self.thermal.step_secondary(state.secondary_loop, transferred, dt)
         self._apply_secondary_boiloff(state, dt)
         self._update_loop_inventory(
             state.secondary_loop, constants.SECONDARY_LOOP_VOLUME_M3, constants.SECONDARY_INVENTORY_TARGET, dt