ML20080J093

Annual Operations Rept of Texas A&M Univ AGN-201M Training Reactor,June 1982 - May 1983

ML20080J093
Person / Time
Site:	Texas A&M University
Issue date:	05/31/1983
From:	Erdman C, Schlapper G TEXAS A&M UNIV., COLLEGE STATION, TX
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
NUDOCS 8309260180
Download: ML20080J093 (9)

Text

.

4 5

ANNUAL OPERATIONS REPORT of the TEXAS A&M UNIVERSITY AGN-201M TRAI ING REACTOR NRC LICENSE R-23 June 1, 1982 - May 31, 1983 Prepared by:

r l

/3hfdhfLA i44 L, Gerald A. Schlapper Acting Reactor Supervisor //

i i

Carl A. Erdman, Head

. Nuclear Engineering Department i

DEPARTENT OF ltJCLEAR ENGINEERING Texas A&M University College Station, Texas 77843 8309260180 030531 gDRADOCK05000

(-

1.

SUMMARY

This report details the pertinent activities related to the Texas A&M

. University AGN-201M training reactor facility operated at the Department of Nuclear Engineering during the period June 1, 1982 to May 31, 1983.

Furthermore, it is intended that the contents of this report comply with the requirements of 10 CFR 50, Section 50.59 (b) and Appendix A, Technical Specifications, of license R-23.

The utilization of this facility continues to be similar to that of previous years. The general categories of utilization for this past year were support of Nuclear Engineering courses, operator training, RSO radiation safety course, and preventive maintenance. Nuclear Engineering courses supported during the past year were:

ENGR 101G Engineering Analysis NE 402 Nuclear Detection and Isotope Technology Laboratory NE 405 Nuclear Engineering Experiments NE 485 Problems During normal preventive maintenance, malfunctioning components were replaced as detailed in Section 4. Facility modifications and component

. replacement performed during this reporting period do not involve unreviewed safety questions and are not expected to adversely affect the safe operation of this facility. ,

The results of all nejor parameter surveillance tests are shown in Table 1.

TABLE I. REACTOR PARAMETER SURVEILLANCE MEASUREMENTS Date Value 17 JanJary 1933 Safety Rod #1 - Reactivity Worth 1.159%ok/k 18 January 1983 Safety Rod #2 - Reactivity Worth 1.155%ok/k 18-January 1983 Coarse Cont'rol Rod - Reactivity Worth 1.196%ak/k 24 January 1983 Fine Control Rod - Reactivity Worth 0.358%ok/k 7 January 1983 Safety Rod #1 - Drop Time 120 msec 7 January 1983 Safety Rod #2 - Drop Time 144 msec 7 January 1983 Coarse Control Rod - Drop Time 141 msec l

~ .

27 January 1983 Total Excess Reactivity at 20*C with Glory Hole Empty 0.278%ak/k t

2. OPERATIONAL

SUMMARY

Utilization by Category:

(a) Support of Nuclear Lab Engineering Courses 26.59 hour6.828704e-4 days <br />0.0164 hours <br />9.755291e-5 weeks <br />2.24495e-5 months <br /> (b) Reactor Operator / Senior Reactor Operating-Training 2.20 hour2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br /> (c) Preventive / Corrective Maintenance 4.37 hour4.282407e-4 days <br />0.0103 hours <br />6.117725e-5 weeks <br />1.40785e-5 months <br /> Total Operating Hours 28.79 hour9.143519e-4 days <br />0.0219 hours <br />1.306217e-4 weeks <br />3.00595e-5 months <br /> Total Watt-hours of Operation 54.97 hour0.00112 days <br />0.0269 hours <br />1.603836e-4 weeks <br />3.69085e-5 months <br /> Average Power Level of Operation 1.91 watts Number of Reactor Startups 110

3. UNSCHEDULED SHUTDOWNS DATE TYPE CAUSE CORRECTIVE ACTION 6/23/82 High Level Channel Electrical Spike none - no 3 Trip while moving SR2 reoccurrence of this problem 7/16/82 High Level Channel Calibration in Error Repla'ced Calibration 2 Trip due to bad calibra- battery and rechecked tion battery 10-13, 10-7, 10-11 settings 8/3/82 High Level Channel Operator Error in Counsel Operator 3 Trip (Two occur- Switching Range rences) Switch 11/19/82 Rod Drop SR1 Suspect low magnet Repeated insertion -

current no reoccurrence of problem this date 12/2/82 Rod Drop SR1 Low magnet current Replaced resistor and resoldered poorly soldered joint in series with SR1 scram magnet

1/17/83 Scram Voltage fluctuation None-no reoccurrence due to variation in of this problem power to facility 1/18/83 High Level Channel Student Operator Re-instruct Student 3 Trip error in switching Operator range switch 3/22/83 Rod Drop SR 1 Possible voltage / Checked voltages and current fluctuation currents; found to magnet satisfactory - no reoccurrence of problem 4/5/83 High Level Channel Student Operator Re-instruct Student 3 Trip error in switching Operator range , switch Summary .

(a) Scrams due to Instrument Failure or Malfunction 5 (b) Scrams due to Operator Error 4 (c) Scrams due to Experiment Manipulation _1 TOTAL UNSCHEDULED SHUTDOWNS 10

4. CORRECTIVE MAINTENANCE AND COMP 0NENT REPLACEMENT Corrective maintenance and component replacement performed as normal maintenance of the Texas A&M University AGN-201M reactor during this

( reporting period are sunnarized as follows:

(a) 10 June 1982 - Replaced multivibrator chip (device 74121) in Channel

1. Test pulse circuit output is now 60 Hz. Completed maintenance prodedure CHILT, results satisfactory.

I (b) 13 July 1982 - Cleaned contacts on shieldwater float mechanism after satisfactory performance of WITL-6. Removed Ch. 2 detector and drywell and l inspected for leakage; none found.

(c) 15 July 1982 - Removed Ch. 3 detector and drywell and noted no leakage problems.

l (d) 5 August 1982 - Installed sight glass of Tygon tubing between upper and lower fill taps of thermal column. Checked for leakage and found

! none. This system provides visual verification that thermal column tank is j filled.

(e) 13 September 1982 - During performance of maintenance procedure C2TC-6 noted that two tubes were approaching borderline performance limits.

Replaced the necessary paired tubes.

(f) 10 December 1982 - Removed SR1 and SR2 for inspection due to problems with SR 1 maintaining magnet contact.

(g) 16 December 1982 - During continuing inspection of SR1 magnet problem note paralleled resistors in series with SR1 scram magnet. Joints were poorly soldered. Replaced parallel resistors with single resistor of equivalent rating. Operational test was satisfactory. Performed rod drop test on 21 December 1982.

(h) 16 December 1982 - Performed evacuation exercise under watchful eyes of RSB representative, Dr. R. Hart. Results were judged satisfactory.

4 (1) 5 January 1983 - Performed operational check of Gould 22005 Strip chart recorder in performance of RDTM-6. Satisfactory results allowed this instrument to be used in place of the storage oscilloscope that has been judged defective.

(j) 4 February 1983 - Removed water sample from thermal column for analysis of activity. None found.

(k) 29 March 1983 - Obtained core tank gas sample from core pressure tap line using evacuated sample chamber. Analysis of sample indicated no significant activity.

(1) 1 June 1982 to 31 May 1983 - Conducted regularly scheduled maintenance d> ring this period as prescribed by technical specifications and maintenance procedures.

The corrective maintenance and component replacement performed during this reporting period have no impact on the safe operation of the reactor facility and do not change the description of the facility as submitted in the license application and amendments thereto.

l l

S. (a) REACTOR MODIFICATIONS No modifications were made to the Texas A&M University AGN-201H reactor during this reporting period.

(b) CHANGES TO PLANS AND PROCEDURES As required by Appendix E to 10CFR Part 50 a revised Emergency Plan for the Texas A&M AGN-201M reactor was submitted for review on October 28, 1982. This plan was reviewed by the Reactor Safety Board prior to submittal. Upon notification of plan approval, any necessary revisions to the emergency procedures will be made.

(c) NEW EXPERIMENTS OR TESTS No new experiments or tests were performed during this reporting period.

6. ,

SUMMARY

OF SAFETY EVALUATIONS No changes, tests, or experiments were performed subsequent to 10 CFR 50 paragraph 50.59 during this reporting period; therefore, no safety

. evaluations were required.

7.

SUMMARY

OF RADI0 ACTIVE EFFLUENT RELEASES No liquid or solid radioactive waste was' released during this reporting period.

8. ENVIRONMENTAL RADIOLOGICAL SURVEYS No environmental radiological surveys were performed outside the i

facility during this reporting period.

9. RADIATION EXPOSURE No reactor facility personnel or visitors received radiation exposures

~

greater than 100 mrem (50 mrem for persons under 18 years of age) during this reporting period. ,

10. REACTOR SAFETY BOARD ACTIONS (a) 26 October 1982 - The Reactor Safety Board meeting as a subcommittee reviewed the Emergency Plan for the AGN-201M reactor prior to submittal to USNRC.

(b) 28 January 1983 - The Reactor Safety Board reviewed the Emergency Plan as submitted to U.S. NRC and gave their approval. RSB audits of AGN operations on 30 September 1982 and 16 December 1982 were reviewed. The RSB approved a procedure change in the maintenance procedure for measuring rod drop times. Also on this date the annual review of the Security Plan was completed.

(c) 25 July 1983 - The Reactor Safety Board reviewed previous audits, t

11. MISCELLANE0US The following personnel participated satisfactorily in the AGN operator requalification program.

Carl Erdman S0P-4136

Gerald Schlapper 50P-4210 David Carpenter OP-5850

. Barry Willits OP-5849 Additional training was conducted for Mr. Carpenter and Mr. Willits. On 24 January 1983 senior reactor operator licenses were received based on satisfactory performance on the USNRC administered SR0 exam.

Barry Willits 50P-4472 effective 26 November 1982 David Carpenter S0P-4471 effective 3 January 1983 s

On receipt of his SR0 license, Mr. Willits was named Reactor Supervisor for the AGN-201M facility. Dr. Gerald Schlapper who was serving in this capacity retained his license. On 31 May 1983 Mr. Willits joined the staff

. of the Nuclear Science Center and 'Jr. Schlapper again assumed'the duties of Acting Reactor Supervisor while a permanent supervisor is being trained.

e 4

4 l .

l 2

r ,

e~s ~

t - -# i TEXAS A&M UNIVERSITY COLLEGE OF ENGINEERING Coll [GE STATION TEXAS 77843-3133 DEPARTMENT OF NUCLEAR ENGINEERING 18 August 83 Regional Administrator Region IV., U.S.N.R.C.

Office of Inspection and Enforcement 2 -gk['

3 611 Ryan Plaze Drive, Suite 1000 Arlington, Texas 76012 r ..

Gentlemen: U 7 pgg3 Please find enclosed one original, signed ;he Depar ment-Head, and twelve copies of the " Annual Operations Report ' . exas A&M University AGN-201M Training Reactor," June 1, 1982 to May 31 Wese are submitted in accordance with the requirements o CFR 50, Section 50.59 (b) and Appendix A, Technical Specifications of NRC Facility License R-23, Docket No. 50-59.

Sincerely,

/

Carl. A. Erdman Professor and Head CAE/sgd l

• A66 n :yj)fsleal'a 1

l COLLEGE OF CNGINEERING : TEACHING RESEARCH + EX TENSION flIf I

, - , -- , . . - . . .