Ultra Reliable Space Life Support Systems
Ultra reliable space life support systems can be built with small additional mass for direct material supply or about twice the minimum mass for recycling equipment. The required direct supply of a material such as oxygen, water, or food for space life support can be provided in some number “r” of identical packages. If only one of the r packages fails, the life support system fails. But by providing n > r packages, so that there are n - r spare packages to make up for failures, the reliability of direct material supply can be greatly increased. Ultra reliability can be achieved if the required direct supply is provided in 10 to 100 or more packages with 1 or 2 spare packages, so the additional mass required for ultra reliable direct life support is only a few percent.