Tech Spec Change Request 7 Re Tech Specs 4-1,allowing Completion of Thermal Plune Survey & Allowing Facility Operation Below 80% Min CapacityML19317G427 |
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Site: |
Crystal River ![Duke Energy icon.png](/w/images/7/75/Duke_Energy_icon.png) |
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Issue date: |
08/01/1977 |
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From: |
Rodgers J FLORIDA POWER CORP. |
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To: |
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Shared Package |
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ML19317G426 |
List: |
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References |
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NUDOCS 8003030828 |
Download: ML19317G427 (3) |
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Category:TECHNICAL SPECIFICATIONS
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ML20206M0961999-05-0707 May 1999 Proposed Tech Specs,Revising Wording for SR 3.5.2.5 to Be More Consistent with NUREG-1430,Rev 1 & Clarifying Process of Valve Position Verification ML20206H6541999-05-0505 May 1999 Proposed Tech Specs,Proposing Alternate Repair Criteria for Axial Tube End crack-like Indications in Upper & Lower Tubesheets of CR-3 OTSGs ML20204D9211999-03-18018 March 1999 Proposed Tech Specs Re OTSG Tubes Surveillance Program,Tube Repair Roll Process ML20202E6551999-01-27027 January 1999 Proposed Tech Specs Re OTSG Tubes Surveillance Program,Insp Interval Extension ML20196D6761998-11-30030 November 1998 Proposed Tech Specs LCO 3.9.3,allowing Both Doors in Personnel Air Locks & Single Door in Oeh to Be Open During Refueling Operations ML20195K4551998-11-24024 November 1998 Proposed Tech Specs,Installing diesel-driven EFW Pump to Remove Interim ITS & Provide Resolution to EDG Capacity Limitations ML20195K0031998-11-23023 November 1998 Proposed Tech Specs Re LAR Number 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Capability of RB Atmosphere Gaseous Radioactivity Monitor Described in ITS Bases & FSAR ML20238F4761998-08-31031 August 1998 Proposed Tech Specs,Proposing New Repair Process for Plant OTSGs ML20151X0431998-08-31031 August 1998 Proposed Tech Specs Adding Three Addl Reg Guide 1.97 Type a Category 1 Pami Variables & One Type B Category 1 Pami Variable to ITS Table 3.3.17-1, Pami ML20236V8831998-07-30030 July 1998 Proposed Tech Specs Pages Re CREVS & Ventilation Filter Test Program ML20236E9851998-06-30030 June 1998 Proposed Tech Specs Re Exigent License Amend Request 228,rev 1 for Once Through SG Tube Surveillance Program ML20249B2671998-06-18018 June 1998 Proposed Tech Specs Pages Re one-time Exigent License Amend to Allow Operation W/Number of Indications Previously Identified as Tube End Anomalies & Multiple Tube End Anomalies in OTSG Tubes ML20247P8931998-05-22022 May 1998 Proposed Improved Tech Specs 5.2.1 Re Onsite & Offsite Organizations ML20217P5181998-04-28028 April 1998 Proposed 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Specs Establishing New Improved TSs (ITS) Surveillance Requirement for Performance of Periodic Integrated Leak Test of Cche Boundary & Revising ITS Bases 3.7.12 to Define Operability of Cche ML20202G7991997-12-0505 December 1997 Proposed Tech Specs Revising Description of Starting Logic for RB Recirculation Sys Fan Coolers to Ensure That Only One RB Fan Starts on Es RB Isolation & Cooling Signal ML20199G8461997-11-21021 November 1997 Proposed Tech Specs Pages Involving Additional Restrictions, Editorial Clarifications & Typos ML20212F2741997-10-31031 October 1997 Proposed Tech Specs Pages Re Decay Heat Removal Requirements in Mode 4 ML20212C9801997-10-25025 October 1997 Proposed Tech Specs Re Power Operated Relief Valve Lift Setpoint TS Limit That Has Been Revised for Instrument Uncertainty ML20217F5231997-10-0404 October 1997 Proposed Tech Specs Pages Addressing Revision to Description of Electrical Controls for Operating Reactor Building (RB) Recirculation Sys fan/cooler,AHF-IC,as Discussed in FSAR & Improved TS ML20217D2741997-10-0101 October 1997 Proposed Tech Specs Adding Methodology to Monitor first-span Intergranular Attack (Iga) Indications & Disposition Growth During Future B OTSG Eddy Current Exams ML20210T9771997-09-12012 September 1997 Proposed Tech Specs Replacement Pages Re New Improved TS 3.4.11 Re Low Temp Overpressure Protection Sys ML20216F8481997-09-0909 September 1997 Proposed Tech Specs Re Analysis Rev for Makeup Sys Letdown Line Failure Accident as Discussed in FSAR ML20217Q2121997-08-26026 August 1997 Proposed Tech Specs Changing Design Basis of EDG Air Handling Sys ML20217N2501997-08-20020 August 1997 Proposed Improved Tech Specs 5.6.2.10 Re Tube Surveillance ML20210K8921997-08-16016 August 1997 Proposed Tech Specs 3.8.1.3,requesting one-time Outage on Each EDG to Perform Necessary Mod & Maint ML20151L7541997-08-0404 August 1997 Proposed Tech Specs Extending Frequency of EDG Surveillances During Period of Time CR-3 EDGs Are Being Modified ML20196J1431997-07-29029 July 1997 Proposed Tech Specs Adding EDG Kilowatt Indication to post- Accident Monitoring Instrumentation to Support CR-3 Restart Issue of EDG Load Mgt ML20196H0281997-07-18018 July 1997 Proposed Tech Specs Changes Establishing Requirements for Low Temperature Overpressure Protection Sys ML20148K7811997-06-14014 June 1997 Proposed Tech Specs Re Efw,Hpi,Emergency Feedwater Initiation & Control Sys ML20138H8781997-05-0101 May 1997 Proposed Tech Specs Replacing Prescriptive Requirements of 10CFR50,App J,Option a w/performance-based Approach to Leakage Testing Contained in 10CFR50,App J,Option B ML20137X5361997-04-18018 April 1997 Proposed Tech Specs,Providing Revs to CR-3 Improved TS Bases That Update NRC Copies of Improved TS 1999-09-02
[Table view] Category:TECHNICAL SPECIFICATIONS & TEST REPORTS
MONTHYEARML20212C1121999-09-16016 September 1999 Criticality Safety Analysis of W Spent Fuel Storage Racks in Pool B of Crystal River Unit 3 ML20212C0961999-09-16016 September 1999 Proposed ITS & Bases Changes Strikeout & Shadowed Text & Revision Bar Format,Increasing Licensed Capacity for Spent Fuel Assembly Storage in SFP & Revising Configuration for Storage of Fresh Fuel ML20211L1011999-09-0202 September 1999 Proposed Tech Specs Re Once Though SG Tube Surveillance Program,Alternate Repair Criteria (ARC) for Axial Tube End Crack (Tec) Indications ML20212C0991999-08-31031 August 1999 Criticality Safety Analysis of Crystal River Unit 3 Pool a for Storage of 5% Enriched Mark B-11 Fuel in Checkerboard Arrangement with Water Holes ML20209D2971999-07-0808 July 1999 Proposed Tech Specs,Changing ITS for CREVS & VFTP & Correcting Typo in ITS Section 5.6.2.12 ML20195B8091999-05-26026 May 1999 Proposed Tech Specs,Revising ITS Bases That Will Update NRC Copies of ITS ML20195B7081999-05-17017 May 1999 Proposed ITS Section 3.3.8, EDG Lops, SR 3.3.8.1,revising Note for Surveillance & Deleting Note for Frequency ML20206S7691999-05-12012 May 1999 Proposed Improved Tech Specs Pages 3.4-21 Through 3.4-21D ML20206N1401999-05-10010 May 1999 Proposed ITS Administrative Controls Section 5.8, High Radiation Area ML20206M0961999-05-0707 May 1999 Proposed Tech Specs,Revising Wording for SR 3.5.2.5 to Be More Consistent with NUREG-1430,Rev 1 & Clarifying Process of Valve Position Verification ML20206H6541999-05-0505 May 1999 Proposed Tech Specs,Proposing Alternate Repair Criteria for Axial Tube End crack-like Indications in Upper & Lower Tubesheets of CR-3 OTSGs ML20204D9211999-03-18018 March 1999 Proposed Tech Specs Re OTSG Tubes Surveillance Program,Tube Repair Roll Process ML20205A7651999-03-18018 March 1999 Rev 29 to AR-305, Es E Annunciator Response ML20205A7961999-03-15015 March 1999 Rev 22 to AR-301, ESA Annunciator Response ML20205A8051999-03-15015 March 1999 Rev 33 to AR-303, ESC 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ML20199G5581999-01-12012 January 1999 Rev 4 to AP-404, Loss of Decay Heat Removal ML20199G5691999-01-12012 January 1999 Rev 4 to AP-604, Waterbox Tube Failure ML20198T2411999-01-0606 January 1999 Rev 19 to AR-701, Ssf P Annunciator Response ML20196G6771998-12-0101 December 1998 Rev 17 to Annunciator Response AR-702, Ssf Q Annunciator Response ML20196D6761998-11-30030 November 1998 Proposed Tech Specs LCO 3.9.3,allowing Both Doors in Personnel Air Locks & Single Door in Oeh to Be Open During Refueling Operations ML20196G5851998-11-25025 November 1998 Rev 32 to AR-303, ESC Annunciator Response ML20196G3371998-11-25025 November 1998 Reissued Rev 15 to AR-702, Ssf Q Annunciator Response ML20195K4551998-11-24024 November 1998 Proposed Tech Specs,Installing diesel-driven EFW Pump to Remove Interim ITS & Provide Resolution to EDG Capacity Limitations ML20196F6691998-11-24024 November 1998 Rev 11 to AP-330, Loss of Nuclear Svc Cooling ML20195K0031998-11-23023 November 1998 Proposed Tech Specs 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November 1998 Rev 1 to Crystal River Unit 3 ASME Section Xi,Isi Program Interval 3 & Ten Yr NDE Program ML20195H8761998-11-0505 November 1998 Rev 23 to AR-302, Esb Annunciator Response ML20155F4021998-10-30030 October 1998 Proposed Revised Improved Tech Specs (ITS) Section 5.6.2.19, ITS Section 3.4.11,Bases 3.4.11 & 3.4.3 Re PTLR & LTOP Limits 1999-09-02
[Table view] |
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. 5 Tfchnical Specification Change Request No. 7a and b ,
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Replace page 4-1 with the attached revised page 4-1.
Reason for Proposed Change No. 7a During the peiformance of the thermal plume determination in August, when the maximum intake temperatures are observed, it is possible that the temperature of the cor. denser cooling water at the P0D will exceed 1030F for a period of more than three consecutive hours.
The purpose of the study is to determine the thermal plume at the Crystal River site under varying conditons so that the physical and mathematical models can be modified and be.available for use in evaluating any abnormal environmental occurrences or other modifications in the plant system or equipment perfonnance.
The summer thermal plume survey is scheduled for the three day period of August 15-16, 1977. Based on current-P00 temperature data, the 1030F limit may be exceeded for about five hours per day with the 1060 limit ,
never being exceeded. Because of the long intake and discharge canal system, the period of maximum temperatures is from about 8 pm till 1 am, a time when the thermal loading of the ecosystem from the sun is minimal.
The proposed change will allow the completion of this important study so that future problems or modificati.ons may be analyzed in advance to minimize any adverse thermal effects on the aquatic ecosystem.
Even though the proposed change would also be effective during the winter survey, it.is highly unlikely that the 1030 F limit would be exceeded at that time.
An-Evaluation of the Environmental Impact of the Proposed Change 7a 1
While it is recognized that extreme thermal stress may have adverse effects on the aquatic ecosystem, the near shore species in Florida are generally adapted to tolerate thermal stress because of the high thermal load from the sun (called insolation). This tolerability will allow the ecosystem to survive the possible one time stress the thermal survey may cause and will help to minimize any damage.
Because of this and the fact that the valuable information obtained in the survey may prevent damage to the ecosystem in the future, any damage to the ecosystem as a result of this change is far outweighed by the damage that may be prevented in the future at the Crystal River site.
A Benefit-Cost Analysis of the Proposed Change 7a The benefit of performing this study is that the aquatic ecosystem may be protected from adverse thermal effects in the future by having accurate thern:a1 plume models. The cost of the study in terms of adverse thermal effect on the aquatic ecosystem is uncertain. There is already 8008 03 0 [2f
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4.0 SPECIAL SVRVE1LLANCE RESEARCH, OR STUDY ACTIVITIES 4.1 THERMAL PLUME DETERMINATION DURING UNIT 3 OPERATICN Objective To establish the location and size of the thermal plume during normal operation, under conditions of high and low tide and maximum and minimum intake temperature; to provide data to verify the cathematical and physical models so that good predictions of, isotherm location under all conditions will be possible and to establish the operational monitoring system: to verify previous calculations which predict the size and location of the effluent thermal plume.
General Approach and Schedule Intensive field surveys shall be conducted twice during the first year of operation. Specifically, the surveys will be done during the months of July or August when the maximum intake temperature is observed and during the months of December or January for contrast when the minimum intake temperature is observed. The thermal field measurements shall be made in sufficient locations to cover the full extent of the thermal plume.
Salinity measurement may be required in order to effectively decouple the plume from ambient isotherms. During the tests the behavior of the plume during both phases of the tidal cycle shall be tested.
The measurements should allow for construction of the isothermal maps with 1.0 F above ambient contour intervals. These tests shall ,
be carried out with all three units operating at > 80% percent of site capacity if possible. During the surveys the folTowing conditions shall be recorded as needed to assess the extent of the thermal plume and its correspondence to a computer run with parallel parameters:
(a) plant conditions (condenser flows, intake temperature, dis-charge temperature, loading, etc.) of all three units, (,b) hydrological conditions (tidal stage, salinity traverses, etc.), (c) meteorological conditions (wet and dry bulb temperature, humidity, windspeed, wind direction, solar radiation, etc.).
The requirement of Specification 2.1.2 that the temperature of the condenser cooling water at the POD not exceed 1030F for a period _.
of more than 3 consecutive hours shall not be applicable during the performance of this study.
The field survey measurements shall be compared to the results of the predicted computer runs. Any modifications needed in either the physical model or the mathematical model will then be incorporated in the models. The models'will then be available to use in the evaluation of any abnormal environmental occurrence or other modifica-tions in plant system or equipment performance.
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much thermal loading from the sun in the ar:a of the thermal piume and since we are allowed,to operate up to 1030 F (and above it for up to three consecutive hours) at the P00, it is expected that the perfonnance of this survey will have little effect on the aquatic ecosystem of the site.
Reason for Proposed Change No. 7b The second change concerns the minimum loading of the three units at the Crystal River site during the survey. The present survey as defined-in ttie ETS requires that each unit at the site be loaded to at least 80% of capacity. Units 1 & 2 are run at 40%-50% of capacity at night because of decreased system demand and the necessity fer keeping other large power stations on line at minimum load so that the system. load requirements for the next day can be met. Wi',h Unit 3 at 100% load, the maximum load at night is s 70% for the Cryst 1 River-site. For the purposes of the survey, it'can be arranged for the Crystal River site to increase load to meet.any increased system requirements but it will not be possible to keep all units at >80% load and it may not be possible to keep the total site loading at >80% and still maintain system integrity. However, every attempt wit 1 be made to maximize the total site loading during the performance of the survey.
An Evaluation of the Environmental Impact of the Proposed Change 7b g The thermal plume determination ideally should be performed with all three units at full load for the entire survey. The proposed change would allow operation below the 80% minimum capacity required by the ETS, in order that the integrity.of the system can be maintained during periods of low demand. This reduced capacity would have less adverse effects on the aquatic ecosystem than_ running the units at >80% capacity for the length of the survey. Therefore, the change does not have an )
adverse environmental impact. ;
A Benefit-Cost Analysis of the Proposed Change 7b The proposed change does not have an adverse environmental impact and the short time that the load will be below 80% capacity can be factored into the study so there will be no lost or inaccurate data. Therefore, the proposed change dces not have an associated cost.
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