Environmental Control and Life Support Systems
Carbon Dioxide Removal Assembly
The Carbon Dioxide Removal Assembly (CDRA) uses molecular sieve adsorbents and a thermal/pressure swing approach to selectively remove carbon dioxide from nitrogen, oxygen, and water vapor. Two CDRAs are installed on ISS and have been operational since February 2001.
Carbon Dioxide Removal by Ionic Liquid System
The Carbon Dioxide Removal by Ionic Liquid System (CDRILS) uses ionic liquid absorbents and a continuous liquid system to selectively absorb carbon dioxide from a spacecraft cabin atmosphere. CDRILS can maintain a lower partial pressure than CDRA using significantly lower volume, mass, and power.
Methane Pyrolysis System
Methane pyrolysis is a new process that splits natural gas or biomethane directly into hydrogen and solid carbon. Honeywell is developing a Methane Pyrolysis Reactor for use in space. This reactor will be tested on the International Space Station to increase oxygen recovery.
Cabin Pressurization & Supply System
The Cabin Pressurization and Supply System regulates the cabin air pressure and adds nitrogen and oxygen to the cabin as commanded. This also monitors for over-pressure or under-pressure conditions and emergency atmosphere venting. The Cabin Pressurization and Supply System is installed and operating on the ISS.
Thermal Control Systems
The function of the thermal control system (TCS) is to keep all the spacecraft's component systems within acceptable temperature ranges during all phases of a manned space mission. Honeywell has developed numerous thermal control system components for the ISS. These components include mixing valves, flow control valves, heat exchangers, cold plates and coolant pumps assemblies.