Heat exchanger(s) for recovering water and/or heat energy from turbine engine combustion products

A turbine engine, comprising:

• a fan section comprising a fan rotor;
• a power turbine section comprising a power turbine rotor rotatably coupled with the fan rotor;
• a bypass flowpath fluidly coupled with and downstream of the fan section;
• a recovery system including an evaporator module and a condenser module, the evaporator module extending radially across the bypass flowpath, the evaporator module comprising an evaporator heat exchanger forming an entirety of the evaporator module, and the power turbine section arranged axially between the evaporator module and the fan section;
• and a turbine engine core including a core compressor section, a core combustor section and a core turbine section, wherein a core flowpath extends sequentially through the core compressor section, the core combustor section, the core turbine section, the power turbine section, the evaporator module and the condenser module from an inlet into the core flowpath to an exhaust from the core flowpath, and wherein the evaporator module is radially outboard of and axially overlaps the turbine engine core.

A turbine engine, comprising:

• a turbine engine core including a core compressor section, a core combustor section and a core turbine section;
• a recovery system including a first evaporator module, a first condenser module, a second evaporator module and a second condenser module, the first condenser module axially adjacent and circumferentially aligned with an outer section of the first evaporator module, the second condenser module axially adjacent and circumferentially aligned with an outer section of the second evaporator module, and the second evaporator module axially overlapping the first evaporator module, wherein a centerline axis of the recovery system is offset from a centerline axis of the turbine engine core;
• and a core flowpath including a base leg, a first heat exchange leg and a second heat exchange leg, the base leg extending sequentially through the core compressor section, the core combustor section and the core turbine section towards the first heat exchange leg and the second heat exchange leg, the first heat exchange leg branching off from the base leg and extending sequentially through the first evaporator module and the first condenser module, and the second heat exchange leg branching off from the base leg and extending sequentially through the second evaporator module and the second condenser module;
• wherein the first evaporator module and the second evaporator module are radially outboard of and axially overlap the turbine engine core.