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Breaking ground on a new approach to construction
The drive to Kairos Power’s reactor demonstration site in Oak Ridge, Tenn., is not only scenic—it’s historic. Nearly 85 years ago, roughly 30,000 construction workers transformed orchards and farmland into a key Manhattan Project site. Depending on your route, you may pass by one of the three gatehouses that were once military checkpoints controlling access to Atomic Energy Commission production facilities.
Robert J. Borland
Nuclear Science and Engineering | Volume 121 | Number 1 | September 1995 | Pages 162-171
Technical Paper | doi.org/10.13182/NSE95-A24138
Articles are hosted by Taylor and Francis Online.
For most pressurized water reactors, moderator temperature coefficients (MTCs) must be measured at end-of-cycle conditions at power to verify that Technical Specification limits on negative MTC will not be violated. Three techniques for performing these measurements are evaluated, and the relative strengths and weaknesses of each method are discussed. Considering overall accuracy and time required to perform the test, a best method is selected, and its accuracy is compared with previous measurements performed at Davis-Besse Unit 1, thus demonstrating the effectiveness of this technique. In addition, the necessity of attempting to perform this measurement at power at end-of-life conditions is discussed.