Cabin Humidity Control: Condensing Heat Exchanger

Every crewed spacecraft has to solve the same quiet problem: people constantly add water vapor to the air just by breathing and sweating, and if nothing pulls it back out, the cabin fogs up and metal surfaces start to sweat. This simulator models the condensing heat exchanger that solves it — a cooled core that chills a stream of cabin air below its dew point so excess moisture condenses onto the fins and drips into a collection tank, exactly as the ISS Common Cabin Air Assembly does. Adjust crew size, cabin temperature, core coolant temperature and airflow, and watch the mist thin or thicken inside the cabin, droplets form and drip on the CHX core, and the tank fill in real time while relative humidity, dew point and collection rate update live.