JJ-CCR Simulator

BUILDING DIVER…

Guided scenarios

Dive

Target depth10 m

Descent rate18 m/min

Ascent rate9 m/min

WorkloadVO₂ 1.1 L/min

Water temperature12 °C

Oxygen control · SOLO

Active setpointkey H

Low setpoint0.70 bar

High setpoint1.30 bar

Auto switch (up at 21 m · down at 12 m)

Diluent (onboard 3 L: ADV, diluent valve, wing)

Simulation

Time warp00:00:00

O₂ cylinder valve closed Fault: solenoid stuck open Fault: solenoid battery dead Fault: cells 1 & 2 read 30 % low Fault: cell 3 current-limited Fault: controller failure (solenoid stops, fly manually)

Drag to orbit · scroll to zoom · click any part for details. Particles in X-ray: CO₂-laden, scrubbed, O₂ injected, diluent.

PPO₂ cells · voting (bar)

CELL 1

0.70

PASS

CELL 2

0.70

PASS

CELL 3

0.70

PASS

Head-Up Display

Setpoint0.70 L

Voted PPO₂0.70

Real loop PPO₂0.70

Depth10.0 m

Loop FO₂0.35

Dil PPO₂0.42

Loop volume (8 L back-mounted lungs)5.5 L

Ideal loop volume– L

Solenoid · O₂ injection

SOLENOID

IDLE

Fires0 /min

Last pulse0.00 s

O₂ added (avg)0.00 L/m

Metabolic1.10 L/m

MAV flow0 L/m

Dil flow0 L/m

O₂ tank (3 L / 200 bar)200 bar

Diluent tank (3 L / 200 bar)200 bar

Bailout stage (S80 11.1 L, own regulator)207 bar

Axial scrubber · 2.5 kg

Remaining100%

Est. time3:00

Stack timer3:00

Insp. PCO₂ (sim)0.0 mbar

Peak temp12 °C

CO₂ absorbed0.99 L/m

Heat82 W

exhaustedtemperaturereaction front

CO₂ + H₂O → H₂CO₃① CO₂ dissolves in the pellet's surface water film

H₂CO₃ + 2NaOH → Na₂CO₃ + 2H₂O + heat② fast neutralisation by NaOH (catalyst)

Na₂CO₃ + Ca(OH)₂ → CaCO₃ + 2NaOH③ slow step: lime locks CO₂ as chalk, regenerating NaOH

Axial flow: exhaled gas runs down the gap between the canister and the housing, turns under the canister and rises up through the bed to the cells in the lid, so the violet front climbs from the bottom. Manufacturer test: 180 min (40 L/min, 1.6 L/min CO₂, 4 °C).