A tank and intertank sizing tool that includes effects of major design drivers, and which allows parametric studies to be performed, has been developed and calibrated against independent repzrcsentative results. Although additional design features, such as bulkheads and field joints, are not currently included in the process, the improved level of fidelity has allowed parametric studies to be performed which have resulted in understanding of key tank and intertank design drivers, design sensitivities, and definition of preferred design spaces. The sizing results demonstrated that there were many interactions between the configuration parameters of internal/external payload, vehicle fineness ratio (half body angle), fuel arrangement (LOX-forward/LOX-aft), number of tanks, and tank shape/arrangement

This paper describes how to precisely coordinate distribution feeder automatic-circuit reclosers using cooling-factor data that accounts for the heating and cooling of source-side or loadside fuses throughout the recloser's operating sequence. This method yields results that are more accurate than other coordination methods commonly employed. Different coordination methods are discussed in this paper and the results are compared.

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