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PNNL -14480
Figure 2 Sub-critical gas centrifuge components 16
Because of the corrosive nature of UF 6, all components that come in direct contact with it
must be fabricated from or lined with corrosion-resistant materials.
The power supply is a key component of the gas centrifuge process. The power supply
(frequency converter) must accept alternating current input at the 50 or 60 Hz line
frequency of the electric power grid and provide an ac output at a much higher frequency
(typically 600 Hz or more). The high frequency output from the frequency converter is
fed to the high-speed gas centrifuge drive motors (the speed of an ac motor is
proportional to the frequency of the supplied current). The centrifuge power supplies
must operate at high efficiency, provide low harmonic distortion, and ensure precise
control of the output frequency. 16
A variety of materials have been used for centrifuge construction. The three most
common (in order of increasing tensile strength) are high tensile strength aluminum
alloys, maraging steel, and carbon fiber/resin. Specific design issues are discussed in
Section 3.2.2.1.
Table 5 identifies specific technologies used in centrifuge enrichment, describes the
technology level needed for successful use, and lists critical materials and unique
equipment.
16 Scientific American, Vol., No. 2, August 1978, Pg 29
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