Water pressure and quantity monitoring for hydrogen steam injected and inter-cooled turbine engine

A propulsion system for an aircraft comprising:

• a core engine including a core flow path where air is compressed in a compressor section, communicated to a combustor section, mixed with a hydrogen-based fuel and ignited to generate a high energy gas flow that is expanded through a turbine section;
• a hydrogen fuel system configured to supply hydrogen fuel to the combustor through a fuel flow path;
• a water recovery system including a condenser arranged along the core flow path that is configured to extract water from the high energy gas flow;
• a water pressure monitoring system measuring a water pressure at various locations in the water recovery system;
• a water level sensing system disposed in the water storage tank for water quantity monitoring;
• a controller programed to control the water recovery system based on information communicated from the water pressure monitoring system, and to monitor the water pressure and quantity to assess the health of the water recovery/supply system;
• and
• an evaporator in thermal communication with a core engine heat source and configured to generate a steam flow from a portion of water extracted by the condenser, wherein the steam flow is injected into the core flow path upstream of the turbine section.