Experiment data report for 1-1/2-loop semiscale system isothermal Tests 1004 and 1006

Abstract

Recorded test data are presented for Tests 1004 and 1006 of the isothermal portion of the Semiscale Blowdown and Emergency Core Cooling (ECC) Project. These data. represent the results of the first tests in the isothermal test series in which simulated ECC injection during blowdown was investigated. The data, presented in the form of composite graphs in engineering units, have been analyzed only t o the extent necessary t o .assure that they are reasonable and correct. The intent of this report is t o make available the uninterpreted data from Tests 1004 and 1006 for use by others and for support of subsequent interpretative reports and analyses.

Error analysis for 1-1/2-loop semiscale system isothermal test data

“…The following are the error componentsidentified as affecting the general data due to the data acquisition and processing: (l) Electronic pickup noise ±0.1% of full scale (2) General electronic system ±0.05% of full scale (3) Calibration and correction ±0.9% of full scale…”

Semiscale pressure suppression system performance during the isothermal blowdown test series

“…(3) Initial air pressure in'the PSS (4) Depth of downcomer submergence beneath the watermrface of the PSS vessel ( 5 ) Water spray introduced into the PSS vapor-gas region.…”