MINUTES OF MEETING. Technical Committee on Pulverized Fuel Systems

Transcription

1 MINUTES OF MEETING Technical Committee on Pulverized Fuel Systems January 7-8, 2014 Doubletree Hotel Orlando Airport Orlando, FL I. Attendance: Principal Members/Staff: Andy Smith, Technical Committee Chair, Global Risk Consultants, GA Denise Beach, NFPA, MA Joseph Bittinger, Jr. American Electric Power Co., OH Vaughn Boley, Hartford Steam Boiler Inspection & Insurance Company, CT Qingsheng Lin, Babcock Power, Inc., MA William Martin, Babcock & Wilcox Company, OH (via teleconference) Cleveland Skinker, Bechtel Power Corporation, MD (via teleconference, Jan 8 only) II. Minutes of Meeting: 1. Call to order. The meeting was called to order at 8:10 a.m. on Jan. 7, Chairman Smith thanked the committee members for their presentation. 2. Introduction. The committee members introduced themselves and identified their affiliation. 3. Minutes Approval. The minutes from the January 2013 meeting were approved as written. 4. NFPA Staff Report. The NFPA Staff Liaison reviewed the new document revision process and tools, including the new terminology, the revision cycle timeline, and the online public input submittal process. (Attachment A) NFPA Staff reported that the NFPA Board of Directors approved a formal anti-trust policy at their November 2013 meeting (Attachment B). 5. Old Business. ASTM E1226. A new task group was established to look specifically at ASTM E ASTM E 1226 requires that test samples have 95% of sample capable of passing through a 200 mesh screen (smaller than 75 microns). The typical coal fineness level for pulverizer product applied to a coal-fired utility boiler is between 65% and 85% passing through 200 mesh. In addition, Pmax listed in Table 6.8.3, on page 6-146, Fire Protection Handbook (NFPA, 2008) shows Pmax is less than 10 Bar, from 8.4 to 9.1 bar, which is based on lab testing on different coals with a 20-liter container. The data was published by Eckhoff, initially by BIA. Finally, task group member Lin found a study performed in the the 1980s by EPRI. The EPRIsponsored research program to study pulverized coal fires and explosions in the US utility industry included a series of laboratory experiments performed by the Central

2 Electricity Generating Board (CEGB) in UK. The results of experiments showed that Pmax in vessel (explosion chamber) was below 10 Bar for all tests. However, Pmax greater than 10 Bar was observed in pipe for some tests. The maximum Pmax in the pipe for these tests was 1182 psig (81.5 Bar).The testing was performed with full scale laboratory test rigs and coal fineness level of 90% passing through 200 mesh. 6. New Business. A. Document Revision. The committee reviewed the public comments and created Second Revisions. The committee actions will be available in the Second Draft Report, which will be available no later than July 18, B. Glossary Review. The committee reviewed the NFPA 85 definitions specific to pulverized fuel systems. The committee made several recommendations for definitions to be deleted (Attachment C). The committee established a task group to review the fan definitions specific to PFS and create recommendations for the Fundamentals technical committee. The chair of the taskgroup is Qinsheng Lin. Additional volunteers are needed to complete the recommendations. C. BCS-FUN Actions. The committee reviewed the preliminary actions of the Fundamentals committee and determined that no action is necessary. D. Task Group on 9.6, Operations. A new task group was established to perform a complete review of section 9.6 and related annex material to ensure that it is complete and accurate to current practices, and create recommendations for revisions or additional annex material. 7. Final Review of Revised Chapter 9. The committee reviewed the final draft of chapter 9. The committee noted that coal, fuel, and pulverized fuel are all used in the chapter. The committee will review this further in the next revision cycle. The committee also noted that the term flue gas should be removed from , but this is new material that must be held until the next cycle. However, the new revision process has no mechanism for committee inputs to the next revision cycle. Finally, the committee reviewed the negative ballot submitted by committee member Erdem Ural. NFPA staff reminded the committee that a complete revision of the chapter dictated the First Revision being recorded as a single action item. The committee reviewed Mr. Ural s additional comments and found that the specific items noted (8% volatile content, allowable stress, and coverage of dusttight pulverizers) originated in the 1956 edition of the standard. Therefore, the committee didn t provide substantiation for maintaining existing text because no challenge was presented to the existing text. It was only reorganized. Mr. Ural is encouraged to submit Public Input to the next revision cycle. 8. Next Meeting. The next meeting will be scheduled as needed following publication of the 2015 edition. 9. Adjournment. The meeting adjourned at 9:40 a.m. EST on Jan. 8, 2014.

3 Attachment A: NFPA Staff Presentation

4 Welcome TC on Pulverized Fuel Systems At this and all NFPA committee meetings we are concerned with your safety. If the fire alarm sounds, please proceed to an exit. January 7-8, 2014 Doubletree Hotel Orlando, FL Members, please verify/update your contact information Use of tape recorders or other means capable of reproducing verbatim transcriptions of this or any NFPA meeting is not permitted Guests All guests are required to sign in and identify their affiliation. Participation is limited to TC members or those individuals who have previously requested time to address the committee. Other participation is granted at the discretion of the Chair. Guest chairs are located around the room as a courtesy. 1

5 Members categorized in ANY interest category who have been retained to represent the interests of ANOTHER interest category (with respect to a specific issue or issues that are to be addressed by a TC/CC) shall declare those interests to the committee and refrain from voting on any Public Input, Comment, or other matter relating to those issues throughout the process. General Procedures Follow Robert s Rules of Order. Discussion requires a motion. Motions for Ending Debate Previous Question or Call the Question Not in order when another has the floor Requires a second This motion is not debatable and DOES NOT automatically stop debate A 2/3 affirmative vote will immediately close debate and return to the original motion on the floor. Less then 2/3 will allow debate to continue. Committee member actions: Member addresses the chair. Receives recognition from the chair. Introduces the motion. Another member seconds the motion. 2

6 Committee chair actions: States the motion. Calls for discussion. Ensures all issues have been heard. Takes the vote. Announces the result of the vote. New Process What s New? New Term Input Stage Public Input First Draft Meeting Committee Input Committee Statement (CS) First Revision (FR) First Draft Report First Draft Changes in Terms: Old Term ROP Stage Proposal ROP Meeting Trial Balloon (or later, FR that fails ballot) Committee Statement Committee Proposal or Accepted Public Proposal ROP ROP Draft New Process What s New? New Term Comment Stage Public Comment Second Draft Meeting Committee Comment Second Revision Second Draft Report Second Draft Changes in Terms: Old Term ROC Stage Public Comment ROC Meeting Comment that Failed Ballot (Second Revision that failed ballot) Committee Comment or Accepted Public Comment ROC ROC Draft Technical Committee Actions: Resolving Public Comments Committee Action and Committee Statement Creating Second Revisions 3

7 Resolving Public Comments (See Regs ) Committee develops a Committee Action Accept Reject but see Reject Reject but Hold Committee Statements Committee must clearly indicate reasons for not accepting the recommendation and/or point to a relevant Second Revision All Public Comments Actions must have a Committee Statement Must include a valid technical reason No vague references to intent Explain how the submitter s substantiation is inadequate Neither PC Action nor Committee Statements get balloted Create a Second Revision (SR) Committee wants to make a change (to add, delete or modify) the First Draft. Committee develops a Committee Statement (CS) substantiating the change. Each SR gets balloted No new material after the Public Input Stage since it hasn t had the benefit of public review. What constitutes new material is decided by the TC or Correlating Committee. Adding new material at this Comments stage could successfully be challenged through appeal to the NFPA Standards Council 4

8 Formal voting Voting during meeting is used to establish a sense of agreement (simple majority) Secured by letter ballot (2/3 agreement) Only the results of the formal ballot determine the official position of the committee on the Second Draft Ballots are on the Second Revisions (SR) ONLY Public Comments and Committee Statements not balloted Reference materials are available - Second Draft, Public Comments, First Draft Report Ballot form allows you to vote: Affirmative on all SR Affirmative on all SR with exceptions specifically noted Ballot form provides a column for affirmative with comment Note: This box only needs to be checked if there is an accompanying comment. Reject or abstain requires a reason. Initial ballot Circulation of negatives and comments Members may change votes during circulation Second Revision that fails letter ballot shall be designated as a Committee Comment (in the 2 nd Draft Report), marked as Reject and deleted from the Second Draft. Electronic Balloting Ballots will be an online format Alternates are strongly encouraged to return ballots Ballot session will time out after 90 minutes Use submit to save your work 5

9 Electronic Balloting Click link on the ballot received Sign in with NFPA.org Committee Login and Password Electronic Balloting Select either Affirmative on All or Affirmative with Exception(s) Electronic Balloting Choosing AFFIRMATIVE ON ALL Use See FR/SR - # link to review all First/Second Revisions Use Edit election to change individual votes or to modify vote after submitting ballot. Electronic Balloting Choosing AFFIRMATIVE WITH EXCEPTION(S) Make selection: Affirmative with Comment, Negative, or Abstain No selection made-defaults to affirmative Must include comment on each vote. 6

10 Electronic Balloting To complete ballot click Participant Consent and Submit Return and edit any votes before ballot due date. TC Struggles with an Issue TC needs data on a new technology or emerging issue Two opposing views on an issue with no real data Data presented is not trusted by committee Code Fund Lends a Hand TC rep and/or staff liaison submits a Code Fund Request Requests are reviewed by a Panel and chosen based on need / feasibility Research Project Carried Out Funding for project is provided by the Code Fund and/or industry sponsors Project is completed and data is available to TC Legal Patent: Disclosures of essential patent claims should be made by the patent holder, but others may also notify NFPA if they believe that a proposed or existing NFPA standard includes an essential patent claim. Antitrust: the single most important provision-federal law prohibits contracts, combinations, or conspiracies which unreasonably restrain trade or commerce. Section 1 of the Sherman Act Legal Activities Disapproved by the Courts Packing meetings Hiding commercial interest throwing the committees out of balance Hiding scientific or technical information from committees No final decision-making authority to unbalanced Task Groups; include all interested parties. 7

11 Doc Info Pages Document Information Next Edition Technical Committee Document scope Current/Previous Edition information Issued TIAs, FIs and Errata Archived revision information Standard Council Decisions Articles and Reports Read only document Submit Public Input/Comments via Electronic Submission System. Meetings and Ballots ROP/ROC or First Draft Report and Second Draft Report NITMAMand Standard Council Decisions Private TC info Ballot circulations, informational ballots and other committee info Committee name, responsibility and scope Staff liaison Committee list Private committee contact information Current committee documents in PDF format Committees seeking members and committee online application Any questions? 8

12 Attachment B: NFPA Anti-Trust Policy

13 NFPA Antitrust Policy The NFPA is a not for profit organization with a mission of promoting the science and improving the methods of fire protection and prevention and electrical safety. The primary way in which the NFPA fulfills this mission is by developing and disseminating safety standards intended to minimize the possibility and effects of fire and other risks. The standards development process depends on volunteer participation by a diverse range of individuals on behalf of numerous stakeholders including participants representing business and industry. As a result, antitrust concerns can arise in connection with standards development activity. It is the policy of the NFPA to strictly comply with state and federal antitrust laws, and the NFPA expects all participants in NFPA standards development activities to conduct themselves in strict accordance with these laws. NFPA minimizes the risk of antitrust problems by providing a forum for standards activities that is based on the principles of openness, honesty, fairness and balance and that is conducted in accordance with published rules and regulations. Each participant in the standards development process has the obligation to adhere to all rules, regulations, and policies of the NFPA including, without limitation, the Regulations Governing the Development of NFPA Standards. In addition, participants can draw valuable guidance on how to conduct themselves by consulting NFPA s Guide for Conduct of Participants in the NFPA Standards Development Process. While compliance with NFPA s standards developments rules and regulations is essential, it alone is not sufficient to avoid conduct that may violate the antitrust laws. Participants must also avoid any conduct, conversations or agreements that would constitute an unreasonable restraint of trade or be otherwise illegal under the antitrust laws. Although it s not possible to identify every situation that could be found to be anticompetitive or a violation of antitrust laws, the following topics should NOT be addressed or discussed, even informally, by or among competitors or other individuals in the course of their NFPA involvement: - Profits, profit margins or cost data; - Prices, rates, and fees; - Selection, termination, division or allocation of customers, sales territories, or markets; or - Refusal to deal with a specific business entity. Participants in NFPA activities may receive antitrust training or advice from their employers or other organizations or entities they represent. This NFPA antitrust policy, as well as other information or presentations that NFPA may provide concerning the antitrust laws and standards development, are not intended to take the place of such training or advice; nor are they intended to constitute legal advice to participants. In addition to consulting with their legal counsel, however, participants can assist NFPA and their fellow participants by refusing to engage in inappropriate discussions and by speaking up if they have questions or concerns about any matter or discussion that occurs in the course of NFPA standards development activities. Participants should bring matters of concern to the attention of NFPA staff. Any participant may also raise questions regarding this policy to the NFPA s General Counsel.

14 Attachment C: Glossary of Terms Recommendations

15 NFPA 85 Boiler and Combustion Systems Hazards Code 2011 Edition The following words and phrases do not appear in NFPA 85, appear only in Chapter 3 and/or the Annex materials, or is a repeat of another definition. Definitions also appear in this list if a similar word or phrase appears in NFPA 85. Chapter 3 Definitions 3.3 General Definitions. [Note: these words, phrases, and synonyms were highlighted in NFPA 85.] Primary Air (in a Pulverized Fuel System). In a pulverized fuel system, either air or a flue gas air mixture; can simultaneously also be pulverizer air and/or transport air. The phrase primary air appears near pulverizer or coal in Chapters 1, 3, 6, 9, and Annex A. Recommendation: Keep definition as is Bin System (Storage System). A system in which the fuel is pulverized and stored in bins from which it is withdrawn through feeders, as needed, for burning. The phrase bin system (storage system) does not appear anywhere else, however both bin system and storage system appear individually in the body of the text. Recommendation: Request correlating committee update to indirect-fired system to be consistent with revised chapter Direct Fired System (Unit System). A system in which the fuel is pulverized and delivered in suspension directly to the burner(s). The phrase direct fire system (unit system) does not appear anywhere else, nor does direct fired system. Unit system appears once in Chapter 9. Already addressed by FUN Distributor/Divider. A device that splits a single stream of pulverized coal and primary air into two or more streams. The phrase distributor/divider does not appear anywhere else, nor does the word divider. However, distributor does appear in the body of the code. Already addressed by PFS and FUN in other revisons.

16 Exhauster Fan. A fan located at the pulverizer outlet used to draw the primary air through the pulverizer and to deliver the primary air fuel mixture to the burner(s) or other apparatus. Note: only appearance of exhauster fan is when the definition for exhauster refers to this one. Recommendation: Keep as is Friability. The tendency of coal to crumble or break into small pieces. The word friability does not appear anywhere else Grindability. The characteristic of solid fuel that indicates its relative ease of pulverization, as defined by ASTM D 409, Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method. Note: grindability appears only in the Annex sections. Recommendation: Request correlating committee delete the definition to be consistent with the NFPA Manual of Style and action taken on Annex K Primary Air Fan (Pulverizer Air Fan). See , Primary Air Fan. The phrase primary air fan (pulverizer air fan) does not appear anywhere else. Pulverizer air fan does appear in Chapter 9. Primary air fan is a separate definition, and would be considered a repeat here. Recommendation: change storage to indirect-fired to be consistent with new chapter 9 terminology. Keep remainder as is.