ML20010C873

Closes Out FSAR Items 430.2,430.3.3,430.3.4 & 430-15 & Provides Description of Hydrogen Storage Sys (Item 430.43) Discussed at 810514 Meeting W/Power Sys Branch Re Auxiliary Sys.Info Will Be Incorporated in Next FSAR Revision

ML20010C873
Person / Time
Site:	Callaway
Issue date:	08/19/1981
From:	Bryan J UNION ELECTRIC CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
ULNRC-483, NUDOCS 8108210147
Download: ML20010C873 (12)

Text

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UNION ELECTRIC COMPANY l seos onArior sTanzT sr. Louis, Miesount JOHN M, SRYA M ,30 g43 i m..... August 19, 1981 er. aui = ouai..i..  !

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Mr. Harold R. Denton Director of Nuclear Reactor Regulation

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Dear Mr. Denton:

ULNRC- 4 8 3 i

DOCKET NUMBERS 50-483 AND 50-486 CALLAWAY PLANT, UNITS 1 & 2 FINAL SAFETY ANALYSIS REPORT On May 14, 1981, a meeting was held between the NRC Power SysteFas Branch and the GNUPPS utilities concerning auxiliary systems. This letter serves to close out items 430.2,

, 430.3.3, 430.3.4, and 430-15 and also provides a description of I the hydrogen storage system (item 430.43). This information was previously given to the NRC project manager for Callaway, but was not transmitted formally.

l This information will be incorporated into the Callaway l Plant FSAR in the next revision. This information is hereby l incorporated into the Callaway Application.

, Ver truly yours, i

(

db Jo n K. Bryan

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l 8108210147 ts10819 N PDR ADOCK 05000460=

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y STATE OF MISSOURI )

) SS CITY OF ST. LOUIS )

John K. Bryan, of lawful age, being first duly sworn upon oath says that he is Vice President-Nuclear and an officer of Union Electric Company; that he has read the foregoing document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.

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By e .- f geg i

. Rryan f ice Presidenti) uclear SUBSCRIBED and sworn to before me this 19th day of August, 1981 N# Vin A; <. L

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F.1ARG ARET S. HElDA HOTARy ILEt;;_3tAyl Of f.flSSOURI S T. Lolin; coun;y MY CWW33'0's t J. f $ jq.UMY t MR2

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9 cc: Glenn L. Koester Vice President Operations Kansas Gas & Electric P.O. Box 208 Wichita Kansas 67201 John E. Arthur Chief Engineer Rochester Gas & Electric Company 89 East Avenue Rochester, New York 14649 A. V. Dienhart Vice President Plant Engineering and Construction Northern States Power 414 Nicollet Mall Minneapolis, Minnesota 55401 Donald T. McPhee Vice President Kansas City Power and Light Company i 1330 Baltimore Avenue Kansas City, Missouri 64141 Gerald Charnoff, Esq.

Shaw, Pittman, Potts & Trowbridge 1800 M. Street, N.W.

Washington, D.C. 20036 Nicholas A. Petrick Executive Director SNUPPS 5 Choke Cherry Road Rockville, Maryland 20850 W. Hansen Callaway Resident Office U.S. Nuclear Regulatory Commission RR#1 Steedman, Missouri 65077 i

• SNUPPS-C

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4 been removed, and all valves are in the proper position to permit a manual start of the equipment.

After the unit has been satisfactorily started and load tested, return the unit to ready automatic standby service and under the control of the control room operator.

, Provide a dir,cussica of how the above requirements have been implemented in the emergency diesel generator system design and how they will be considered when the plant is in commercial operation, i.e., by what means will the above requirements be enforced.

Response: For responses to Item 430.3.1 and 430.3.2, refer to Standard Plant P.esponses.

3. The Callaway approach to Emergency Diesel Maintenance will adequately cover these concerns.

Administratively, maintenance results of all safety-related components will be approved by the Superintendent, Maintenance, or his designee. In addition, it is intended that completion documents of significant maintenance activities (and certainly Emergency Diesel Maintenance is significant) be reviewed by cognizant engineers. The two 3 , individuals are responsible to take any action j necessary to ensure optimum operability. Files will i be built containing history of repairs.

4 i This will ensure that if a component malfunctions repeatedly, the proper corrective action will be taken.

4. Maintenance Procedures will provide for a final equipment check upon completion of repairs or maintenance.

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-f 430.3-2

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, , SNUPPS-C Item 430.15 You state in section 9.5.4.3 that diesel oil is '

(9.5.4) normally delivered to the site by tanker truck and

' if road transportation is unavailable, it can be delivered onsite by railroad tanker. Discuss per sources where diesel quality fuel oil will be available and the distances required to be travelled from the source to the plant.- Also discuss how fuel oil will be delivered onsite under extremely unfavorable environmental conditions including maximum probable

flood conditions.

i Response: The source of fuel oil has not been contracted at this time. (Iowever, there are multiple access routes to the

{ site. The Callaway plant is sited above the PMF level, j

and it is not anticipated that all access routes would

,' be blocked for an extended period of time to preclude fuel delivery as needed. Some possible source of fuel j

oil for the Callaway Plant and the distances to these 4

sources are as follows:

J. D. Frame Oil Co.

Fulton, Missouri 14 miles l Tri-County Oil Co.

Jefferson City, Missouri 34 miles MFA Oil Co.

Columbia, Missouri 40 miles .

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430.15-1 i

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i The storage vessels are refilled from an over-the-road trailer as required. The anticipated refill cycle is four weeks.

l The storage tanks are of the horizontal cylindrical type and

! are located approximately 350 feet from the power block.

l A fire hydrant and hose house are located within 200 feet of the gas storage area.

2.2.1.2.3.4 Hydrogen l l Refer to Section 2.2.2 for a description of the hydrogen I system.

l l 2.2.1.2.3.5 Carbon Dioxide Carbon dioxide is stored on site as a pressurized refrigerated liquid in an insulated storage vessel. It is vaporized elec-trically as required and piped to the power block through l Schedule 80 steel pipes laid in the same vented masonry trench l as the hydrogen pipes. These supply lines are fitted with

! pressure relief valves.

The storage vessel is refilled with liquid from an over-theroad trailer as required. The anticipated refill cycle is four weeks.

The storage tank is of the horizontal cylindrical type. The l axes are not directed towards any buildings within the plant

( site.

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I hazardous commodity was shipped per day, _nd the maximum quan-  ;

tity likely to be transported on any one train was between 30 ,

j and 40 cars (Janovec, 1979). The only spur or siding within a  !

5-mile radius of the site is one leading directly north from I the rail line to the plant site.  !

I Although chlorine was reported to 'have been transported en the l i railroad in previous years, none was transported in 1978. i

Chlorine is a commodity that is not shipped on a regular basis  !

] and no projections of future shipments can be made (Doyle, {

l 1979).  !

l 2.2.1.5 Water Transportation  !

i l The Missouri River, approximately 5 miles southeast of the a site, is a transportation artery for barge traffic. Maximum ,

cargo loads are a function of barge size and river depth. The ,

largest cargo load reported by Sioux City and New Orleans Barge  !

Lines was 1,600 short tons during a period of seasonally high I' water levels. Maximum cargo loads are usually 1,200 short

tons, and the maximum number of barges in a single tow as many -

an 8 to 10 depending on barge size and water (Hynes,

j levels 1979). Nine hundred fifty-five thousand four hundred and I eighty-three (955,483) tons of hazardous commodities, listed in  ;

j Table 2.2-5, were shipped on the Missouri River between Kansas

] City and St. Louis in 1979. Forty-one thousand nine hundred ,

i and seventy-four (41,974) passengers used the river between t Kansas City and the mouth of the river in 1977 (U.S. Army Corps l

, of Engineers, 1977).

2.2.1.6 Pipelines j No pipelines or tank farms are located within 5 miles of the site. The nearest pipeline, Williams Brothers' 8-inch diameter products pipeline, approximately 8 miles north of the site, runs from St. Charles to Columbia, Missouri, and carries refined petroleum products. The pipeline route is shown on

, Figure 2.2-3 (Steuerwalz, 1979).

a i 2.

2.2 DESCRIPTION

S i l The description of products (other than hydrogen) manufactured, stored, or transported offsite as well as the maximum quan-tities of hazardous materials likely to be processed, stored, or transported on site, are fully described in Section 2.2.1.  ;

llazardous materials are listed in Tables 2.7-1, 2.2-4, and 2.2-l 5. The description of the hydrogen syste follows.

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• SNUPPS-C l 2.2.2.1 Hydrogen System l Tha hydrogen system (HS) is designed to provide low pressure I gaseous hydrogen continuously to the turbine and auxiliary l buildings for volume control tank purge, generator fill and I generator leakage make-up. This system description relates I only to components of the site HS outside the Standard Power l Blocks.

l 2.2.2.1.1 Design Basis l 2.2.2.1.1.1 Safety Design Basis l The HS has no Safety Design Basis.

l 2.2.2.1.1.2 Pcwer Generation Design Basis l The HS is designed to provide hydrogen continuously to tl.e l Standard Power Block as required for components related to I power generation.

l 2.2.2.1.1.3 Codes and Standards l The following codes av.5 standards are used as guidelines in the l design of the Hydroger. System and equipment and, where required I by law, the system and equipment conform to the applicable I standards:

I a. National Fire Protection Association (NFPA)

I b. Occupational Safety and Health Standards (OSHA)

I c. American Nuclear Insurers (ANI) l 2.2.2.1.2 System Description l 2.2.2.1.2.1 Location l The location of the US bulk storage fa ility and the dis-l tribution piping outside the Standard Power Blocks are shown on l Figure 2.2-4. A flow diagram of the HS is s town in Figura 2.2-l 5. The hydrogen storage system is located plant South of and I approximately 350 feet away from the Power Block. The axes of I the pressure vessels are oriented plant East-West and are not I directed at any of the buildings within the plant site. Due to l the distance between the Power Block and the hydrogen storage l area a fire in the storage area does not pose any hazard to l systems required for safe shut-down. The hydrogen storage sys-l tem for each unit will sit en its own grade-level concrete I foundation slab and the rest of ti.e fenced gas storage area I will be rock-covered and kept brush free to prevent any brush I fire from impinging on the storage tanks. There is a fire hy-1 drant and hose house within 160 feet of the storage facility.

2.2-9a Rev. 4

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SNUPPS-C  ;

I 2.2.2.1.2.2 Facilities l The HS consists of multiple pressure vessels with l appurtenances, pressure regulators, excess flow control valves, l unloading facilities and distribution lines to each turbine l building.

l 2.2.2.1.2.2.1 Storage l The hydrogen is stored in gaseous form at a maximum pressure of l 2250 psig and the design usable storage capacity is 95,600 scf I for one Power Block. This capacity is divided between the l primary section, consisting of six high pressure tubes and an l identical six-tube secondary section. The secondary section i does not provide gas until the useful capacity of the primary I section has been consumed. The primary and secondary sections I are independent in the sense that a problem in one section will I not affect the operation of the other. Each high pressure I storage tank is fitted with a rupture d' e pressure relief l device. There are two pressure relief valves in the high pres-I sure header between the storage tanks and the pressure I regulator, and two more in the low pressure piping downstream l of the regulator.

l 2.2.2.1.2.2.2 Supply l The storage vessels will be refilled from an over-the-road tube l trailer as required. The anticipated refill cycle is four I weeks. The truck unloading stanchion will have equipment to I electrically ground the trucks to the site grounding system to I which also the control cabinet, piping, steel franiing and the I storage tubes are connected. The unloading stanchion will be l provided with a check valve, a shut-off valve, a purge valve l and a pressure regulator. The purge gas will be piped away I from the operator and vented upwards to the atmosphere. The I open end of the purge line will be protected against the en-l trance of the precipitation, dust and other debris.

l 2.2.2.1.2.2.3 Transfer and Distribution l The pressure regulators reduce the pressure of the gas to the l levels required by the power blocks. The gas is piped to the l power blocks in Schedule 80 carbon steel pipes laid in ven-I tilated masonry surface trenches wherever possible but buried -

l when it is necessary to cross roads, drainage ditches and other l interferences. An excess flow valve is provided in the line to I cach unit to shut off the supply of hydrogen at excessively I high flow rates. The pressure relief valves fitted to the sup-1 ply lines are 200 feet from the oxygen pressure relief valves l and vent 10.5 feet above ground. The hydrogen piping is laid I in the same trench as the carbon dioxide piping.

2.2-9b Rev. 4

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SNUPPS-C l 2.2.2.1.2.2.4 Source /

l Union Electric has contracted with a reputable and qualified I company, experienced in the handling of this product, to I replenish the 3:orage vessels as required.

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