Context: ISRO’s advanced development of the Environmental Control and Life Support System (ECLSS) for the Gaganyaan mission has been highlighted, detailing how the system artificially replicates Earth’s sea-level conditions to sustain Indian astronauts in a 400 km low Earth orbit.
The Environmental Control and Life Support System (ECLSS)About The Environmental Control and Life Support System (ECLSS) :What It Is?
Pressure Control System: Maintains Earth-like cabin pressure using sensors and control valves to balance oxygen and nitrogen safely for the crew.
Temperature and Humidity Regulation : Controls cabin temperature and humidity while removing body heat and excess moisture to prevent equipment damage and microbial growth.
Controls cabin temperature and humidity while removing body heat and excess moisture to prevent equipment damage and microbial growth.
Context: ISRO’s advanced development of the Environmental Control and Life Support System (ECLSS) for the Gaganyaan mission has been highlighted, detailing how the system artificially replicates Earth’s sea-level conditions to sustain Indian astronauts in a 400 km low Earth orbit.
The Environmental Control and Life Support System (ECLSS)
About The Environmental Control and Life Support System (ECLSS) :
What It Is?
The ECLSS is a complex, mission-critical network of thermal, chemical, and mechanical engineering systems designed to replicate Earth’s biosphere inside a spacecraft.
For short-term missions like Gaganyaan, it operates as an open-loop configuration where all necessary human supplies are carried from Earth and metabolic waste is safely stabilized and stored for post-mission disposal.
Developed By: Indian Space Research Organisation (ISRO).
Aim:
The central aim of the ECLSS is to ensure the physiological safety, cognitive health, and comfort of the crew while protecting delicate onboard electronics.
It accomplishes this by continuously regulating the cabin’s air composition, atmospheric pressure, temperature, moisture levels, and waste disposal in a harsh microgravity vacuum.
Key Features:
Air Revitalization System (ARS): Supplies oxygen continuously from onboard tanks while lithium hydroxide canisters remove carbon dioxide and activated charcoal filters eliminate harmful gases and odors.
Supplies oxygen continuously from onboard tanks while lithium hydroxide canisters remove carbon dioxide and activated charcoal filters eliminate harmful gases and odors. Forced Atmospheric Circulation: Internal cabin fans maintain constant airflow in microgravity, preventing dangerous buildup of carbon dioxide or oxygen pockets around astronauts.
Internal cabin fans maintain constant airflow in microgravity, preventing dangerous buildup of carbon dioxide or oxygen pockets around astronauts. Pressure Control System: Maintains Earth-like cabin pressure using sensors and control valves to balance oxygen and nitrogen safely for the crew.
Maintains Earth-like cabin pressure using sensors and control valves to balance oxygen and nitrogen safely for the crew. Temperature and Humidity Regulation : Controls cabin temperature and humidity while removing body heat and excess moisture to prevent equipment damage and microbial growth.
Controls cabin temperature and humidity while removing body heat and excess moisture to prevent equipment damage and microbial growth. Microgravity Water & Waste Management: Uses pressurized systems for drinking water and suction-based mechanisms to safely collect and chemically treat human waste in zero gravity.
Uses pressurized systems for drinking water and suction-based mechanisms to safely collect and chemically treat human waste in zero gravity. Spherical Fire Suppression: Employs special smoke detectors and water-mist extinguishers to control spherical fires and remove toxic smoke particles in microgravity.
Significance:
