Determination of the Net Free Containment Volume at the Trojan Nuclear Plant Using an Experimental-Analytical Technique
| Autor: | Steven M. Lippincott, Daniel I. Herborn, George R. Fegan |
|---|---|
| Rok vydání: | 1978 |
| Předmět: | |
| Zdroj: | Nuclear Technology. 37:13-18 |
| ISSN: | 1943-7471 0029-5450 |
| Popis: | The net free volume of the containment is an essential parameter in the loss-of-coolant accident (LOCA) containment pressure analysis for pressurized water reactors. For an optimized emergency core cooling system performance due to the importance of backpressure during the reflood phase of a LOCA, it is necessary to have the predicted pressure quite close to the design pressure. Using a geometric analysis, an estimate of 56,241.99 m/sup 3/ (1,986,167 ft/sup 3/) for the net free volume has been made for the containment of the Trojan nuclear plant. Two sets of data were produced from the normally scheduled structural integrity and integrated leak-rate tests on the Trojan containment. These data sets were used to arrive at two new estimates of the net free volume. A deterministic equation giving volume as a function of the slope of a linear relationship between depressurization and time was developed. After an analysis of the reliability of the data, estimates of this linear slope were made from the two data sets. These two slopes gave net free volume estimates of 58,000 m/sup 3/ (2.05 x 10/sup 6/ ft/sup 3/) and 57,650 m/sup 3/ (2.036 x 10/sup 6/ ft/sup 3/) when used in the deterministic equation. Themore » maximum deviation from the geometric-based estimate was less than 4%.« less |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|