An aircraft contaminant removal system includes one or more membrane separators configured to absorb a contaminant from a cabin air stream into a liquid sorbent, desorb the contaminant from the liquid sorbent, discharge the contaminant in a contaminant stream, and return clean air back to the cabin. In some examples, the contaminant removal system includes a membrane scrubber-separator and a membrane stripper-separator, while in other examples, the contaminant removal system may include a single membrane separator configured to operate in a scrubbing mode and a stripping mode. The contaminant removal system may include a humidity management system configured to maintain a humidity of the clean air stream or water concentration of the liquid sorbent using one or more water sources of the aircraft or a thermal management system configured to maintain a temperature of the liquid sorbent using one or more heat exchangers fluidically coupled to an aircraft air stream.

The system can include an on-board thermal management subsystem. The system 100 can optionally include an off-board (extravehicular) infrastructure subsystem. The on-board thermal management subsystem can include: a battery pack, one or more fluid loops, and an air manifold. The system 100 can additionally or alternatively include any other suitable components.

The battery thermal management system includes a battery pack, a circulation subsystem, and a heat exchanger. The system can optionally include a cooling system, a reservoir, a de-ionization filter, a battery charger, and a controller.

Disclosed is a separation system including: a chamber comprising: an inlet for receiving a two-phase fluid; a first outlet for draining liquid contained in the two-phase fluid; a second outlet for egress of gas contained in the two-phase fluid; a cylindrical body disposed in the chamber having a plurality of channels through which, during use, the two-phase fluid travels from the inlet to the second outlet, and wherein the liquid within the two-phase fluid coalesces on the walls of the plurality of channels as the two-phase fluid passes through the plurality of channels and the liquid drains through the first outlet.

An aircraft air conditioning system includes an ambient air line configured to have ambient air flow therethrough and being connected to a mixer of the air conditioning system to feed ambient air to the mixer, and a recirculation air line configured to have recirculation air flow therethrough and being connected to the mixer to feed to the mixer recirculation air discharged from an aircraft area to be air conditioned. A refrigerating machine of the air conditioning system includes a refrigerant circuit configured to have a refrigerant flow therethrough and being thermally coupled to the ambient air line and to the recirculation air line to transmit heat from the ambient air flowing through the ambient air line and from the recirculation air flowing through the recirculation air line to the refrigerant circulating in the refrigerant circuit, before the ambient air and the recirculation air are fed into the mixer.

A battery thermal management system for an air vehicle includes a liquid heat exchange circuit, an air heat exchange circuit, and a liquid-air heat exchanger. The liquid-air heat exchanger is positioned on the liquid heat exchange circuit and the air heat exchange circuit to exchange heat therebetween. The system includes a coolant pump fluidically connected to the liquid heat exchange circuit, a flow restrictor positioned in the liquid heat exchange circuit, and a battery in thermal communication with the liquid heat exchange circuit. A method for controlling a thermal management system for an air vehicle includes sensing a temperature of a battery with a temperature sensor, varying a flow area of a flow path through a liquid heat exchange circuit with the flow restrictor if the temperature is below a pre-determined threshold, and operating a pump to provide heating to the battery if the temperature is below the pre-determined threshold.

The battery thermal management system includes a battery pack, a circulation subsystem, and a heat exchanger. The system can optionally include a cooling system, a reservoir, a de-ionization filter, a battery charger, and a controller.

A method, apparatus, and system for managing a supplemental cooling unit. The process receives data for a supplemental cooling unit. The data comprises a pressure, a temperature, and a speed. The process generates a set of alerts based on the data for the supplemental cooling unit and a signature in the data.

An aircraft outflow valve with a heat exchanger is disclosed herein. The aircraft outflow valve can include a heat exchanger that includes an air flow path. Air can flow through the air flow path and exit the outflow valve through an opening at the end of the air flow path. Such airflow can regulate the internal pressure of the aircraft and can also dissipate heat from the outflow valve. The outflow valve can further include a liquid coolant flow path. The liquid coolant flow path can be coupled to liquid coolant lines of electronics of the aircraft. Thus, heat from the electronics of the aircraft can be dissipated through heat transfer between the coolant and the outflow valve, which is accordingly cooled by the airflow through the heat exchanger.

Environmental control systems and methods to control environmental temperature of an enclosed space by integrating a passive heat exchange subsystem (e.g., a loop heat pipe (LHP) heat exchange subsystem) having a closed loop heat exchange fluid circuit in heat-exchange relationship with the enclosed space for providing environmental temperature control therewithin, a RAM-air subsystem having a RAM-air circuit for circulating RAM cooling air, and a vapor compression cycle machine (VCM) subsystem having a VCM fluid circuit having a compressor, an evaporator, a condenser and an expansion valve.