ML19319D433

Site Safety Branch Input to Second Round Questions Re Reactor Bldg Spray

ML19319D433
Person / Time
Site:	Crystal River
Issue date:	07/17/1973
From:	US ATOMIC ENERGY COMMISSION (AEC)
To:
Shared Package
ML19319D430	List: ML19319D429 ML19319D433
References
NUDOCS 8003170565
Download: ML19319D433 (4)

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CRYSTAL RIVER Q-2 QUESTIONS - REACTOR BUILDING SPRAY 1.

Section 6.2.2.1 states that "the sodium hydroxide raises the pH of the borated water into the alkaline range'(approximately 9.5).

Supply the exact values of the pH as a function of time after the LOCA for the spray solution during injection, the sump solution, and I

the spray solution during recirculation.

The calculations should be based on the following assumptions:

I a) All ECCS pumps are operating at run-out conditions.

b) Both R. B. spray pumps operating at run-out conditions c) Failure of one of the cotor operated valves in the NaOH addition line.to open.

og State the quantity of thiosulfate injected under these conditions.

2.

Provide the P & I drawing which 'shows the piping connections fro =

the sodium hydroxide storage tank to the reactor building spray headcrc.

3.

Describe the tests.to be performed to verify that the design values i

for the pH and thiosulfate concentrations.can be achieved with the system cs installed.

If the test fluids differ from the actual solutions used after the LOCA, describe the fluids of similar viscosity and density to be used for the test, and the methods of correlating the the test data with the design require =ents.

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Describe the functional testing to be performed periodically to demonstrate the availability of the R. B. spray system, including pumps, valves, and spray nozzles, as described in Table 6-8, l

I including the following information:

t a) frequency of the tests.

b) source and flow path of all fluids used in the test.

c) the method of verification of unobstructed flow through each of the 192 spray nozzles before visibility is impaired by accumulated s=oke in the containment.

1 d) the =cchod of verification of unobstructed flow through.the spray l

1 additive lines, and the spray headers up to the isolation valves i

outside the containment.

5.

Provide the drop size spectrum emitted from the spray nozzle.

State the type of distribution supplie'd'(i.e. spatial er temporal), the source of the data, and discuss the accuracy and repeatability of the data.

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List by~ type (epoxy, phenolic, zinc, etc.) and manufacturer's

.7 designation all known paints used in the containment.

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list the dry density and surface area covered by each paint. List fe the total surface area and estimated volu=e covered by unkaoun paints.

Explicitly state the curing procedures applied or to be T.?

applied for each paint.

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Insufficient details and design criteria of the reactor building Es su=p and its intake screens are given.

Construction and layout details of the containment sump should include:

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how the syste= will function during the entire period required to accccplish its intended pdrpose (e.g., include consideration p;

a; of component reliability, system interdependency, redundancy

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provisions made for initial and periodic testing and surveillance.

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An analysis of the containment sump should be given which describes the flow path and restrictions (including sizes) which a particle would follow in circulating the dif ferent systems which must use 1

the sump as'a source. An analysis describing the eventual fate of paint chips or other debris which csy mater the sump should be pre-fg sented.

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EN 3.

Analyze each engineered safety features air filtration system EE (fuel handling building and control room) as to the positions in Regulatory yy Uuide 1.52, " Design, Testing and Maintenance Criteria for Atmosphere.

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i Provide plan and elevation drawings of the control room with a clear 1

indication of the fresh air intakes.

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