What is the storage capacity of a typical solid state oxygen system compared to compressed oxygen?

In a typical solid-state oxygen system, the storage capacity is indeed about three times that of compressed oxygen. This is largely because solid-state systems utilize a chemical or solid absorbent that can store oxygen at much higher densities compared to conventional compressed gas cylinders.

Compressed oxygen systems operate by pressurizing gas in a cylinder, which has limitations in terms of how much oxygen can be stored due to structural and safety constraints associated with high-pressure gases. In contrast, solid-state systems can chemically bind oxygen or utilize materials designed for high-density storage, allowing for a more compact size and lighter weight storage solution, which is particularly advantageous in aerospace applications.

This higher storage capacity in solid-state systems not only enhances the efficiency and longevity of oxygen delivery in an aircraft's cabin atmosphere control but also provides weight savings that are crucial for flight performance and operational economics.