Abstract A new fire-extinguishing technology in an inhabited pressurized compartment of manned spacecraft with simulated gravity created for prevention of negative influence of zero-gravity on cosmonauts during a long-term spaceflight is presented. The new fire-extinguishing technology in an inhabited pressurized compartment of a manned spacecraft involves selection of polymeric materials, which are not combustible in simulated gravity conditions and generation of momentum of reaction force in the direction opposite to the direction of its rotation for the time, during which the angular velocity of rotation of the spacecraft module is reduced to the value, under which gravity acceleration is decreased up to the value of combustion limit by gravity acceleration of the most combustible polymeric materials at all the points of the inhabited pressurized compartment during fire occurring inside the pressurized compartment with simulated gravity simultaneously with the activation of automatic fire-extinguishing system, which operation is based on the immediate decrease of ventilation flow velocity lower that combustion limits by to gravity acceleration of the most combustible polymeric materials.
Highlights Research results of limiting combustion conditions under decreased gravity accelerations are considered. Design of fire-extinguishing technology in INPC SC during the flight with simulated gravity is studied. Scientific basis for design of fire extinguishing means in InPC SC in simulated gravity mode gravity is analyzed. Arrangement of experimental installations recommended for calculation of Glim value of materials is presented.
Fire safety provision in inhabited pressurized compartments of spacecraft during a flight in simulated gravity
Acta Astronautica ; 176 ; 725-732
2020-05-21
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Fire safety arrangement of inhabited pressurized compartments of manned spacecraft
Online Contents | 2016
|Automatic fire-extinguishing system for inhabited pressurized compartments of manned spacecraft
Online Contents | 2016
|