Abstract: Example systems and methods for integrating an air-cooled oil cooler into an inlet frame of an engine are provided. An example gas turbine engine comprises an inlet frame including an inlet plenum at a first end of an inlet frame flow path, the inlet frame defining an airflow entrance to a compressor; the compressor to provide an airflow through the inlet frame; a pump to circulate a fluid; a plurality of struts supporting the inlet frame flow path; and a fluid core connected to the pump and built at least partially into the inlet frame of the gas turbine engine, the fluid core to route the fluid through the inlet plenum.

Abstract: A method of removing a radioactive material from a gas includes directing the gas through a bed of salt, wherein the gas includes water vapor and the radioactive material. The salt constitutes more than 50 percent by weight of the bed. The method additionally includes condensing the water vapor in the bed and dissolving a portion of the salt to form a salt solution. The method further includes absorbing the radioactive material into the salt solution while a remainder of the gas passes through the bed. A salt filtration system configured to perform the method may be implemented as a pre-filter (or post-filter) to an existing filter unit or as a standalone filter.

Abstract: A method of removing a radioactive material from a gas includes directing the gas through a bed of salt, wherein the gas includes water vapor and the radioactive material. The salt constitutes more than 50 percent by weight of the bed. The method additionally includes condensing the water vapor in the bed and dissolving a portion of the salt to form a salt solution. The method further includes absorbing the radioactive material into the salt solution while a remainder of the gas passes through the bed. A salt filtration system configured to perform the method may be implemented as a pre-filter (or post-filter) to an existing filter unit or as a standalone filter.