The document discusses considerations for liquid hydrogen and oxygen storage systems on the lunar surface. It notes challenges like hydrogen leaks and flammability, long term storage issues, dust contamination, and pressure-related ruptures or explosions. It also mentions options for surface or subsurface locations, the need for standardized yet adaptable interfaces, and health monitoring systems to detect leaks.

1. Storage

2. Content Menu

3. Liquid Oxygen

4. Liquid Hydrogen

5. Water Liquid or Solid (Ice) Least pressure on containment vessel Higher Density for Hydrogen Life Support Systems

6. Storage System

7. Tank Materials

8. Thermal Management

9. Location Environmental Considerations OPTIONS: Surface Day temp (107 to 123 deg C) Night temp (-153 to –233 deg C) Permanently shadowed craters allow for less energy expenditure for cooling Sub Surface Avg. Temp at 1m depth (-35 deg C)

10. Fixed Vs. Mobile

11. Interfaces (not yet researched) Assumed to be based on terrestrial designs. Must be adaptable to different transportation systems. Ideally standardized. Must be resilient to leaks and contain a health monitoring system (leak detection)

12. Major Problems Hydrogen Leaks + Flammability Long-term Storage (Oxidized parts) Lunar Dust Rapid Expansion (Asphyxiation) High Pressure Gases (ruptures/explosions) Boil-off (Rocket Fuel Venting)

13. Health Monitoring and Communication Sensors (which ones are vital?) We need to address the communication infrastructure! (on some level) Back-up power supplies

14. Input & Output Input Person in Charge Req’d Date Status Production Rate! Wale and Hubert Now Pending # of facilities DAC/Transport Yesterday Pending Location of Facilities DAC/Transport Yesterday Pending CapacityDemand DAC/Transport Now Pending Current and Future Tank Volumes Andreea Wednesday 6PM Pending Output Person in Charge Req’d Date Status 1 st Tank Solution Scott Monday Pending Interface Andreea Tuesday Pending Challenges William Thursday Pending Volume Supplied Scottdreea Weekend Pending Instantaneous Capacity Scottdreea Monday Pending