Word: coolant
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There are today at least eight feasible techniques for generating reactor heat convertible into electricity, e.g., pressurized water, sodium-graphite, boiling water, fast breeder. Britain, in sore need of power, is concentrating on one proved but cumbersome method (using a gas coolant), which is fast becoming obsolescent; Russia plans seven reactors; the U.S.. however, is actively planning to build and operate all eight types, in addition is considering at least two others. This means that the U.S. will lag in actual atomic-power output; it should also mean that the U.S. will emerge with the best method. A recent...
FIRST NUCLEAR REACTOR to be sent abroad by the U.S. will be sold to Switzerland this August. The U.S. will set up a small experimental "swimming pool" reactor, i.e., one immersed in water as both shield and coolant, rated at 10 kw., in Geneva to demonstrate the peacetime uses of atomic energy before a United Nations conference, then let Switzerland have the reactor, plus 55 Ibs. of nuclear material, when the meeting is over...
...power reactor now in prospect is the 60,000-kw. job announced last fall (TIME, Nov. 2). Commissioner Smyth described it this time in some detail. Its fuel will be "slightly enriched" uranium (more U-235 than in natural uranium), and its moderator and coolant will be ordinary water at 2,000-lbs.-per-sq.-in. pressure and a temperature between 500° and 600° F. This is not high pressure or temperature for a coal-burning steam plant, but it is unusual for a nuclear reactor, and Dr. Smyth anticipates a certain amount of trouble. He does...
Thompson kept adding to its products now makes 80, boasts that the only one it ever had to drop was the automobile crank. It has helped develop such things as aircraft valves containing liquid sodium inside as a coolant; an engine valve cap that turns slightly with each strike, thus eliminating warping and pitting; an alcohol-water injection system to get more power out of gasoline; simplified valve tappets; improved fuel pumps and piston rings...
...rich in fissionable 11-235. Around the core is a "fertile blanket" of 11-238, the spent metal that remains when U-235 is extracted from natural uranium to make atom bombs. Through both blanket and core circulates a sodium-potassium alloy that is liquid at ordinary temperatures. This coolant carries away the heat of the nuclear reaction. The fluid metal leaves the reactor at 660° F., and produces enough steam to generate 250 kw. of power...