ANSI ANS 3.11-2015 Determining Meteorological Information at Nuclear Facilities.pdf

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1、An American National StandardPublished by the American Nuclear Society 555 N. Kensington AveLa Grange Park, IL 60526ANSI/ANS-2015HWHUPLQLQJ0HWHRURORJLFDO,QIRUPDWLRQDW1XFOHDU)DFLOLWLHVANSI/ANS-2015ANSI/ANS-3.11-2015American National StandardDetermining MeteorologicalInformation at Nuclear FacilitiesS

2、ecretariatAmerican Nuclear SocietyPrepared by theAmerican Nuclear SocietyStandards CommitteeWorking Group ANS-3.11Published by the American Nuclear Society555 North Kensington AvenueLa Grange Park, Illinois 60526 USAApproved August 20, 2015by theAmerican National Standards Institute, Inc.American Na

3、tional Standard ANSI/ANS-3.11-2015American National StandardDesignation of this document as an American National Standard attests that the principles of openness and due process have been followed in the approval procedure and that a consensus of those directly and materially affected by the standar

4、d has been achieved.This standard was developed under the procedures of the Standards Committee of the American Nuclear Society; these procedures are accredited by the American National Standards Institute, Inc., as meeting the criteria for American National Standards. The consensus committee that a

5、pproved the standard was balanced to ensure that competent, concerned, and varied interests have had an opportunity to participate.An American National Standard is intended to aid industry, consumers, governmental agencies, and general interest groups. Its use is entirely voluntary. The existence of

6、 an American National Standard, in and of itself, does not preclude anyone from manufactur-ing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard.By publication of this standard, the American Nuclear Society does not insure anyone utilizing the standar

7、d against liability allegedly arising from or after its use. The content of this standard re ects acceptable practice at the time of its approval and publication. Changes, if any, occurring through developments in the state of the art, may be considered at the time that the standard is subjected to

8、periodic review. It may be reaf rmed, revised, or withdrawn at any time in accordance with established procedures. Users of this stan-dard are cautioned to determine the validity of copies in their possession and to establish that they are of the latest issue.The American Nuclear Society accepts no

9、responsibility for interpretations of this stan-dard made by any individual or by any ad hoc group of individuals. Responses to inqui-ries about requirements, recommendations, and/or permissive statements (i.e., “shall,” “should,” and “may,” respectively) should be sent to the Standards Department a

10、t Society Headquarters. Action will be taken to provide appropriate response in accordance with established procedures that ensure consensus.Comments on this standard are encouraged and should be sent to Society Headquarters.Published byAmerican Nuclear Society555 North Kensington AvenueLa Grange Pa

11、rk, Illinois 60526 USAThis document is copyright protected.Copyright 2015 by American Nuclear Society. All rights reserved.Any part of this standard may be quoted. Credit lines should read “Extracted from American National Standard ANSI/ANS-3.11-2015 with permission of the publisher, the American Nu

12、clear Society.” Re-production prohibited under copyright convention unless written permission is granted by the American Nuclear Society.Printed in the United States of AmericaAmerican National Standard ANSI/ANS-3.11-2015Inquiry RequestsInquiryFormatThe American Nuclear Society (ANS) Standards Commi

13、ttee will provide responses to inquiries about requirements, recommendations, and/or permissive statements (i.e., “shall,” “should,” and/or “may,” respectively) in American National Standards that are developed and approved by ANS. Responses to inquiries will be provided according to the Policy Manu

14、al for the ANS Standards Committee. Nonrelevant inquiries or those con-cerning unrelated subjects will be returned with appropriate explanation. ANS does not develop case interpretations of requirements in a standard that are applicable to a speci c design, operation, facility, or other unique situa

15、tion only, and therefore is not intended for generic application. Responses to inquiries on standards are published in ANSs magazine, Nuclear News, and are available publicly on the ANS Web site or by contacting the ANS Scienti c Publica-tions and Standards Department.Inquiry requests must include t

16、he following:(1) the name, company name if applicable, mailing address, and telephone number of the inquirer;(2) reference to the applicable standard edition, section, paragraph, gure, and/or table;(3) the purposes of the inquiry; (4) the inquiry stated in a clear, concise manner; (5) a proposed rep

17、ly, if the inquirer is in a position to offer one.Inquiries should be addressed to: American Nuclear SocietyATTN: Scienti c Publications and Standards Department555 N. Kensington AvenueLa Grange Park, IL 60526or standardsans.org$PHULFDQ1DWLRQDO6WDQGDUG$16,$16American National Standard ANSI/ANS-3.11-

18、2015i(This foreword is not a part of American National Standard, “Determining Meteorologi-cal Information at Nuclear Facilities,” ANSI/ANS-3.11-2015.)Meteorological data collected at nuclear facilities play an important role in determining the effects of radiological and toxic chemical ef uents on w

19、orkers, facilities, the public, and the environment; and these data have many other useful applications, such as deter-mining the effects of non-radiological/non-toxic water vapor releases (e.g., cooling tower plumes) and implementing emergency response plan Emergency Action Levels (e.g., in instanc

20、es of high winds). Accordingly, meteorological program design should be based on the needs and objectives of the facility and the guiding principles for making accurate and valid meteorological measurements. ANSI/ANS-2.5-1984 (R1990) (withdrawn), “Deter-mining Meteorological Information at Nuclear P

21、ower Sites,” was issued in 1984 to address nuclear power facility meteorological data acquisition programs. ANSI/ANS-2.5-1984 (R1990) (withdrawn) was referenced by second proposed Revision 1 to Regulatory Guide 1.23, “Meteorological Measurement Program for Nuclear Power Plants.” ANSI/ANS-2.5-1984 (R

22、1990) (withdrawn) was, however, narrowly focused on commercial nuclear power plant siting considerations and did not provide adequate guidance on meteorological data application from startup to operations to decommissioning (i.e., life cycle). In 1996, the Nuclear Utility Meteorological Data Users G

23、roup and the U.S. Department of Energy (DOE) Meteorological Coordinating Council jointly undertook comprehensive reviews of the applicability of ANSI/ANS-2.5-1984 (R1990) (withdrawn) and recom-mended major re nements in the following areas:(1) operational data applications (especially emergency prep

24、aredness) in addition to siting applications;(2) availability of guidance for both public and private sector entities;(3) life cycle considerations of meteorological monitoring systems;(4) the need to monitor multiple locations to acquire suf cient data for models to characterize three-dimensional o

25、ws in regions of complex terrain;(5) inclusion of state-of-the-art meteorological monitoring equipment, including re-mote sensing instrumentation.The meteorological data that are acquired, according to ANSI/ANS-2.5-1984 (R1990) (withdrawn) principles, are primarily used in supporting licensing appli

26、cations of com-mercial nuclear power plants. More common operational applications to support pro-tection of the health and safety of site personnel and the public, such as emergency preparedness consequence assessments and environmental compliance analyses, were not addressed because these programs

27、had not fully matured at that time. Meteorological data required to support consequence assessments associated with emergency response differ signi cantly from the archived data used for climate characterization, environmen-tal impact assessment, and compliance analysis purposes in that data must be

28、 available in real time. Real-time meteorological data availability may require signi cant upgrades to existing monitoring systems to limit data loss and to focus attention on the diurnal and seasonal effects that complex terrain, if present, have on the meteorological wind elds (and therefore plume

29、 trajectory) in the region of transport.Nuclear facilities in the public sector and non-regulatory domains of the DOE and the U.S. Department of Defense were not represented in ANSI/ANS-2.5-1984 (R1990) (withdrawn). Government agencies resorted to issuing their own technical guidance (such as “Envir

30、onmental Radiological Ef uent Monitoring and Environmental Surveillance Handbook,” DOE-HDBK-1216-2015, in which Chapter 5 addressed meteorological mea-surements). The need to develop a standard that was also applicable to the public sector ForewordAmerican National Standard ANSI/ANS-3.11-2015iiwas e

31、nhanced by the recent DOE initiative, through its Technical Standards Program, which set a goal of operating DOE facilities under voluntary standards by 2000, in com-pliance with the Federal guidance contained in the Of ce of Management and Budgets circular OMB-119A, “Federal Participation in the De

32、velopment and Use of Voluntary Consensus Standards and in Conformity Assessment Activities.”Meteorological data monitored at public sector nuclear facilities are used for(1) routine radiological and chemical release consequence analyses;(2) operating procedures, with respect to severe weather;(3) op

33、erations and maintenance considerations for heat sinks (e.g., cooling towers, ponds);(4) real-time consequence assessments of accidental releases of radiological and chemical species;(5) potential environmental and control room habitability impacts resulting from de-sign-basis accidents from project

34、ed new facilities or from modi cations to exist-ing facilities.The use of meteorological data can also play an important role in various types of envi-ronmental, decontamination and decommissioning, air quality, wind loading, and engi-neering studies. Other uses of meteorological data include assess

35、ments of environmental remediation activities, industrial hygiene, construction, and waste management. Ideally, meteorological data needed to design or evaluate nuclear facilities complying with the requirements of ANSI/ANS-2.3-2011, “Estimating Tornado, Hurricane and Extreme Straight Line Wind Char

36、acteristics at Nuclear Facilities,” and other applicable standards should be collected and analyzed in accordance with this standard. A comprehensive meteorological monitoring system requires instrumentation that will meet the program-matic purposes for which it is intended.Meteorological measuremen

37、ts are most commonly taken with in situ sensors that are mounted on towers and are directly in contact with the atmosphere. Additionally, atmo-spheric properties can be inferred with “remote” sensors, which emit or propagate elec-tromagnetic or acoustic waves into the atmosphere. The criteria for up

38、grading a sensor include improved accuracy, durability, and/or dependability, or a decrease in required maintenance that would increase the level of data recovery and cost-effectiveness of the measurement system while maintaining or improving appropriate measurement capabili-ties. When it becomes ne

39、cessary to replace, upgrade, or supplement the meteorological monitoring system equipment, the most effective technology available that is appropri-ate to meet the objectives is normally employed. In the case where a new type of sensor replaces an existing sensor, a demonstration of the effectivenes

40、s of the new sensor is necessary before the replacement is completed (see ASTM D4430-96, “Standard Practice for Determining the Operational Comparability of Meteorological Measurements”). The following document provided useful information related to the subject of this standard: “National Technology

41、 Transfer and Advancement Act,” PL 104-113; accessible online at http:/gsi.nist.gov/global/docs/pubs/NISTIR_5967.pdf.ANSI/ANS-3.11-2000 was developed to address life cycle issues associated with meteo-rological monitoring programs at nuclear facilities. This standard was also developed to address te

42、chnological advances for in situ and remote sensing instrumentation to monitor meteorological parameters (e.g., sonic anemometers, lidar, Doppler sodar, radar wind pro lers, etc.), modi cations in analytical requirements, and other considerations. The aforementioned remote sensing systems provide th

43、e nuclear facility meteorologist American National Standard ANSI/ANS-3.11-2015iiior meteorological program manager with additional means to acquire suf cient data to characterize the three-dimensional wind eld in the vicinity of the facility and within the region of transport. ANSI/ANS-3.11-2000 als

44、o provides additional information on instru-ment siting and measurement issues, based on the results of wind tunnel studies, which have given insight into the aerodynamic effects of obstacles on a local wind eld.ANSI/ANS-3.11-2000 was designed with suf cient depth and breadth to address the needs of

45、 the entire meteorological monitoring community associated with all nuclear facilities nationwide, including commercial electric generating stations and nuclear installations at federal sites, ranges, and reservations. It does not attempt to de ne the exact monitor-ing criteria for every possible ty

46、pe of facility or site environment. It does identify the minimum information that comprises a successful monitoring program and requires that the details of such programs be delegated to subject matter expert meteorologists who analyze each particular site and application in order to arrive at an ac

47、ceptable program for that particular application.The ANS-3.11 Working Group was reconstituted in February 2003 to evaluate the cur-rency of the three-year-old standard and to determine whether it should be simply reaf- rmed on its February 18, 2005, sunset or it needed to be updated to account for n

48、ew reference standards, advances in ex situ and in situ instrumentation, advances in data management equipment and techniques, advances in meteorological program manage-ment, integration with facility programs (e.g., con guration management), and other con-siderations. The Working Group unanimously

49、determined to update the standard, and ANSI/ANS-3.11-2005 is a result of this work. In 2008, the ANS-3.11 Working Group again reevaluated the actions to be taken on the standard prior to its ve-year sunset in December 2010. The Working Group unanimously determined to reaf rm the standard, and ANSI/ANS-3.11-2005 (R2010) is a result of this work.The ANS-3.11 Working Group

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