Experiment data report for Semiscale Mod-1 tests S-05-2A and S-05-2B (alternate ECC injection tests)

Technical Report · Fri Apr 01 04:00:00 EST 1977

DOI:https://doi.org/10.2172/7108378· OSTI ID:7108378

Collins, B. L.; Sackett, K. E.

Recorded test data are presented for Tests S-05-2A and S-05-2B of the Semiscale Mod-1 alternate ECC injection test series. These tests are among several Semiscale Mod-1 experiments conducted to investigate the thermal and hydraulic phenomena accompanying a hypothesized loss-of-coolant accident in a pressurized water reactor (PWR) system. Tests S-05-2A and S-05-2B were conducted from initial conditions of 2263 psia and 543/sup 0/F and 2272 psia and 542/sup 0/F, respectively, to investigate the response of the Semiscale Mod-1 system to a depressurization and reflood transient following a simulated double-ended offset shear of the cold leg broken loop piping. During the tests, cooling water was injected into the intact loop pump suction and broken loop cold leg to simulate emergency core coolant injection in a PWR with flow rates based on system volume scaling. For Test S-05-2A the intact loop pump speed was held constant throughout the test at the initial blowdown value. During Test S-05-2B the pump speed was reduced and stopped according to a predetermined coastdown schedule.

• Research Organization: SEE CODE- 9502158 EG and G Idaho, Inc., Idaho Falls (USA). Idaho National Engineering Lab.
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: EY-76-C-07-1570
• OSTI ID: 7108378
• Report Number(s): TREE-NUREG-1057
• Country of Publication: United States
• Language: English

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