This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Emergency Atmosphere Control; Design and Operational Experience
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 11, 2005 by SAE International in United States
Annotation ability available
This paper will report US Navy submarine philosophy and test experience with the emergency atmosphere control system. A vital aspect of emergency recovery within contained environments is the ability to maintain life while directing escape or awaiting rescue. Emergency atmosphere control differs from primary life support in several key areas. The primary atmosphere control system provides a habitable atmosphere so that the crew can live comfortably and work efficiently in an enclosed environment. Additionally the primary atmosphere control system controls chronic and acute toxicants to minimize both short and long term health consequences. For long duration missions, primary atmosphere control is generally regenerative and may include redundant components for reliability. The emergency life support system replaces the primary system in the event of a catastrophic failure. In emergency situations, the crew's comfort and their exposure to trace levels of toxic species are no longer design drivers. As the emergency atmosphere control system is already redundant to the primary system, further back-ups are not typically employed. The US submarine Navy employs emergency oxygen supply, carbon dioxide removal and atmosphere analysis on all nuclear powered submarines. As emergency life support is intended to back-stop the main system, it must operate completely independently of the main (regenerative) system. Operating without the normal submarine interfaces (power, cooling, ventilation) places large restrictions on the design of emergency life support. This paper will report on the evolution of those requirements. Design and operation of the components will be discussed. Concepts to recover from certain casualties will also be provided.
CitationDaley, T., Trombley, J., and Horn, W., "Emergency Atmosphere Control; Design and Operational Experience," SAE Technical Paper 2005-01-3088, 2005, https://doi.org/10.4271/2005-01-3088.
- Nuclear Powered Submarine Atmosphere Control Manual
- U. S. Navy Submarine Life Support Systems Shadle T. Daley T. ICES Paper 911329 July 1991
- The Effect of Environmental Conditions on the Absorption of Carbon Dioxide Using Soda Lime Rendell D. J. Lt. Clarke M. Dr. Evens M. ICES Paper 2003-01-2644 July 2003
- Sampling of Submarine Atmospheres Wyatt J. Callahan J. Daley T. ICES Paper 951656 July 1995
- Disabled Submarine Survival Guide
- Carbon Dioxide Scrubbing Capabilities of Two New Non-powered Technologies Norfleet W. Horn W. Habitation 2003 9 67 78