PRISM: Design

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Prism is an underwater habitat designed to support five individuals for fourteen days or twenty-five individuals for three days—completely independent of the surface and shore. The Prism primary structure consists of five cylindrical modules and two junction pieces, with the cylinders all approximately 9 meters long and 3.25 meters in diameter.





The primary habitat structure is a hybrid steel and acrylic design that has been engineered with a safety factor of 1.5 times our maximum intended site depth of 15 meters, which is the same safety factor that is used by manned submersibles. Each module serves a distinct function and has its own set of design considerations. Safety has been a critical consideration in the design of the overall structure. In particular, all modules may be sealed off from each other in case of flooding, fire or other emergencies. There are three separate hatches, distributed throughout the habitat, that can be used to leave the habitat and swim to the surface safely in an emergency.
Modules
  • Living Area Module (Acrylic)
  • Sleeping Area Module (Acrylic)
  • Center Module — Kitchen and Library (Steel)
  • Machinery Module — Battery Compartment, Machinery Room and Bathrooms (Steel)
  • Dive Center Module — Moon Pool Room, Primary Airlock and Auxiliary Airlock (Steel)



An outline of the high-level aesthetic and technical design features of PRISM is available for download here