[Optimization analysis of ventilation and dehumidification in manned spacecraft]

Area of Science:

• Aerospace Engineering
• Environmental Control and Life Support Systems (ECLSS)
• Thermodynamics

Context:

• Manned spacecraft require robust environmental control and life support systems (ECLSS).
• Effective air ventilation and dehumidification are critical for astronaut health and mission success.
• Maintaining optimal cabin conditions prevents condensation and ensures crew comfort.

Purpose:

• To optimize the design of operational parameters and components for spacecraft air ventilation and dehumidification systems.
• To develop a mathematical-physical model for analyzing system performance.
• To identify methods for effective heat and moisture removal while meeting astronaut comfort demands.

Summary:

• A mathematical-physical model was used to analyze the air ventilation and dehumidification system.
• System performance, including dew point temperature and comfortability, was evaluated based on various parameters.
• Two control methods were compared: temperature-based (simpler, less effective for moisture) and moisture-based (complex, more effective).

Impact:

• Optimized system parameters and component selection can significantly reduce mass and power consumption.
• Effective dehumidification prevents dew formation, enhancing crew comfort and equipment reliability.
• This research contributes to more efficient and sustainable life support systems for long-duration space missions.