Document: NUREG-0800
Document ID: 2df7cc71-18c8-408a-a8b1-e2b0def18569
Document Type: srp
Title: and 6.2.1.1.B.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340767.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.1
CFR Part: 
CFR Title: 

Content:
designed with an upper compartment spray system may claim credit for such. Containment spray systems are reviewed under SRP Section 6.5.2. d. Evaluation The iodine removal effectiveness and the degree of iodine dose mitigation by the ice condenser for the loss-of-coolant accident are determined using the air-steam fan flow rate and the assump- tions in Subsections III.1.a and III.I.b. 6.5.4-4 Rev. 3 - December 1988 2. Technical Specifications The technical specifications are reviewed to assure that they require periodic inspections and sampling of the ice in order to confirm the continued state of readiness of the system, i.e., the system meets the chemistry requirements specified in the acceptance criteria of this SRP section. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided by the applicant and that the review and calculations support conclusions of the following type, to be included in the staff's safety evaluation report: The staff has reviewed the fission product scrubbing function of the ice condenser and finds that the ice will reduce the elemental iodine concen- tration of the steam-air mixture flowing through the ice beds following a loss-of-coolant accident. The staff estimates an elemental iodine removal efficiency of % per pass during the time period starting at minutes after the accident and ending at minutes. The concept upon which the proposed system is based has been demonstrated to be effective for iodine sorption and retention under post-accident conditions. The system is largely passive in nature, but the active components are suit- ably redundant so that its safety function can be accomplished assuming a single failure. The applicant's proposed program for preoperational and periodic surveillance tests will ensure a continued state of readiness for the iodine removal function of the ice condenser system. The staff concludes that the ice condenser as a fission product cleanup system is acceptable and