Helium hypothetical system

In fulfillment of the contract requirements with the Navy, a hypothetical helium recovery system was designed based on the limited data available from the test program. These calculations were performed to put the test results in perspective. They are not, however, intended to describe a system that Westinghouse has for market. Westinghouse has no plans to market such a system. 

Figure 11 and the accompanying material balances in Figure 12 show that five membrane separation stages are required in the hypothetical system to meet the specified levels in Table I for a 58% helium mixture. 

For a hypothetical system design, based on the existing data, multistage systems are required to recover the helium from vented diving chamber gases in order to meet the design specifications outlined in Table I. 

The hypothetical molecule Hc2 would have a bond order of 0. In fact, the overlap integral in the denominator of the energy-level equations. Equations (7.22) and (7.23), means that the ungerade symmetry MO destabilizes this system slightly more than the stabilization gained by filling the l(Tg+ level. Accordingly, Hc2 is unstable with respect to isolated He atoms, and so helium is a monatomic gas. 

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