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Page 60 text:
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OPERATION: In a reactor of this type, the Water which passes through the fuel core never comes in contact with the rest of the water in the system. CD Heat supplied by nuclear fission within the tubular fuel elements is transmitted to water flowing under pressure and around the tubes. C21 This water is then pumped through U-shaped pipes inside the steam generator, causing water under lower pressure outside the pipes to turn to steam. Meanwhile, the reactor coolant water itself-which has lost some of its heat-is recirculated through the core. 131 The steam drives a turbine-generator, producing electric- ity. C45 Cold air passing over the steam pipes in the condensers turns the steam into waterg and this water is fed back into the steam generator to begin its cycle once again. Installation of steam turbine at the reactor site. 5 7' IIK 9' hem, ' 6 r a Slfsfmgggy f 1 Steam Generator ntal nment Turbine Vessel Generator 3 NS dw i f F?um1:r Primary 3 Make-Up Evaporator Deaerator Feedwater Heater Hotwell Tank W- Utility lines stretch across the Mcrllurdo camp site non' receiving electrzcal energy from the PM-3A,
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Page 59 text:
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clock. The plant's total weight is 460 tons and has a life expectancy of 20 years. The core of the plant has a two- year life span at full power. ii' - ,M D h I e.,:7K: il.. D i 1 . , , , ' .HSD ,,,,-al-' :'B' Typical component package N ard' l r , , Winch operator Strain on lines guide bulky steam turbine onto 10-ton sleol N X ,V 'N u YXXXKK Y X X 4 ,X ..r- .n V,,,,.- we - -..WL The PM-3A's heart, the core
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Page 61 text:
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-1 A Eight down. . . . . . and none to go d WfLLuNetoN --- Christe hurch Arneb made two return trips to Wellington and Christchurch, New Zealand, to load additional tons of supplies and thousands of gallons of drummed fuel. More cargo was delivered to Ant- arctica by Arneb this year than in any previous Deep Freeze and more than any two other ships combined. nf' A-f 'x , g.fL 'fr !f,- Cargo on wheels A hot working day
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