3. Approval of Meeting Minutes from January 21, 2014 (Attachment A). Fall 2018 revision cycle schedule. (Attachment C)

Transcription

1 TECHNICAL COMMITTEE ON FLUIDIZED BED BOILERS NFPA 85 First Draft Meeting Agenda February 16, :30 AM 4:30 PM Eastern Time Web Meeting/Teleconference 1. Call to Order. James Walawender, Chair 2. Introductions. 3. Approval of Meeting Minutes from January 21, 2014 (Attachment A). 4. Staff Updates. Laura Moreno, NFPA Staff Committee membership update. (Attachment B) Fall 2018 revision cycle schedule. (Attachment C) Overview of NFPA Process. 5. Review of Public Inputs: NFPA 85 Chapter 7 (Attachment D) 6. Review of Fundamentals Technical Committee actions (Attachment E). The committee members are asked to review the actions and bring forward any items warranting further discussion. 7. New Business. 8. Next Meeting. 9. Adjourn. Page 1 of 89

2 Attachment A: Previous Meeting Minutes Page 2 of 89

3 MINUTES OF MEETING Technical Committee on Fluidized Bed Boilers January 21, 2014 Web/Teleconference I. Attendance: Principal Members/Staff: Donald Lueckenotte, Technical Committee Chair, Burns & McDonnell Engineering Co., MO Denise Beach, NFPA, MA Joseph Darguzas, EnviroPower, LLC, IL Shelton Ehrlich, CA Robert Herdman, ABB Automation, Inc., OH Paul Miller, Southern Company Services, AL Thomas Wassel, Adolfson & Peterson, NC Alternates: Paul Dehner, Merrick Industries, Inc., FL II. Minutes of Meeting: 1. Call to order. The meeting was called to order at 1:00 p.m. on Jan. 21, Introduction. NFPA Staff conducted a roll-call of the participants. 3. Minutes Approval. The minutes from the February 2013 meeting were approved as written. 4. NFPA Staff Report. The NFPA staff reviewed the new document revision process and tools, including the new terminology, and the revision cycle timeline. NFPA staff reported that the NFPA Board of Directors approved a formal anti-trust policy at their November 2013 meeting (Attachment A). 5. Old Business. A. Gasifiers. The committee briefly discussed gasifiers. It was reported that gasifiers are covered by 29 CFR , Process Safety Management, therefore coverage in NFPA 85 is not necessary. The committee agreed that no further review of this topic is needed, and closed the issue. B. Coal Column. The committee reviewed requirements from chapter 9 regarding a minimum coal column of three pipe diameters or hydraulic pipe diameters for non-circular pipe. No public comments were received on this subject. NFPA staff will poll fluidized bed boiler manufacturers for further input. The committee will revisit this issue in the next revision cycle. C. Plasma Arc Igniters. The committee briefly reviewed a summary of the presentation made to the BCS-MBB committee on this emerging technology. However, applicability to FBBs appears to be limited. NFPA staff will contact the BCS-MBB task group to request that the applicability to boilers other than MBBs is investigated. The committee closed the issue. Page 3 of 89

4 6. New Business A. Document Revision. The committee reviewed the public comments and other requests and created Second Revisions in chapter 7 and related annex text. The committee actions will be available in the Second Draft Report, which will be published no later than July 18, B. Review BCS-FUN Actions. The committee reviewed actions taken by the technical committee on Fundamentals. i. The committee will review the changes to in the next revision cycle. ii. The committee requests that the BCS-AAC correlating committee review Second Revisions 13 and 15 regarding purging fuel gas systems in and out of service. It appears that the new paragraph requires purging downstream of the equipment isolation valve whenever any portion of the piping may be disconnected for a routine inspection. It is not clear if that was the intent of the Fundamentals committee. For example, if the fuel gas is disconnected for a lance inspection, the new paragraph appears to require a complete purge of that piping system with inert gas. C. Industry Update. There were no new projects of note. 7. Other Items: Complete review of chapter 7 The committee intends to meet off-cycle to review chapter 7 in conjunction with chapter 4 and possibly other subject chapters to look at consistency in requirements and terminology. The TC could consider meeting in conjunction with PowerGen, held in December 2015 (operated by Pennwal publisher of industry trade magazines). The TC could consider meeting in conjunction with Council of Industrial Boiler Operators meetings. CIBO has FBB-specific meetings every year. NFPA staff will try to establish contact with CIBO and see if there is an opportunity in ( D. Lueckenotte will contact PowerGen to see if there is any interest. The chairman and staff will update the committee as details become available. 8. Next Meeting. The next meeting will be scheduled in accordance with item 7 and details will be distributed as they become available. 9. Adjournment. The meeting adjourned at 3:55 pm EST. Page 4 of 89

5 Attachment A: NFPA Anti-Trust Policy Page 5 of 89

6 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 hemselves by consul ing NFPA s Guide for Conduct of Participants in the NFPA Standards Development Process. While compliance wi h NFPA s s an ar s evelopmen s rules an regula ions is essen ial, i alone is no 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 un er he an i rus laws. Al hough i s no possible o i en ify every si ua ion ha coul be foun o 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 ques ions regar ing his policy o he NFPA s General Counsel. Page 6 of 89

7 Attachment B: Committee Roster Page 7 of 89

8 Address List No Phone Fluidized Bed Boilers Boiler Combustion System Hazards James P. Walawender Chair Black & Veatch Corporation Lamar Avenue Overland Park, KS Alternate: James Thomas Trimble SE 08/03/2016 BCS-FBB Joseph N. Darguzas Principal EnviroPower, LLC 505 Hamilton Wood Homewood, IL /02/2017 Laura E. Moreno BCS-FBB IM 10/3/2002 BCS-FBB John Dehner Principal Merrick Industries Inc. 10 Arthur Drive Lynn Haven, FL M 03/07/2013 BCS-FBB Carl A. Dunn Principal WorleyParsons 2675 Morgantown Road Reading, PA SE 3/15/2007 BCS-FBB Shelton Ehrlich Principal 755 Northampton Drive Palo Alto, CA SE 1/1/1990 BCS-FBB Robert M. Herdman Principal ABB Automation Inc. Fossil Controls Division Euclid Avenue Wickliffe, OH M 1/1/1991 BCS-FBB David L. Kraft Principal Babcock & Wilcox Company 20 South Van Buren Barberton, OH M 1/1/1991 BCS-FBB Paul H. Miller Principal Southern Company Services, Inc. 42 Inverness Center Parkway, Bin B228 Birmingham, AL U 1/18/2001 BCS-FBB Dave Pickles Principal Nova Scotia Power Inc. PO Box 1609 Bras d Or, NS B1Y 3Y6 Canada U 8/2/2010 BCS-FBB Thomas Wassel Principal Air Techniques Inc Kelly Park Circle Huntersville, NC IM 10/23/2013 BCS-FBB Kevin M. Estes Voting Alternate Foster Wheeler Power Group, Inc. 109 Cormorant Court Fernandina Beach, FL M 10/23/2003 BCS-FBB John P. O'Rourke Voting Alternate General Electric/ALSTOM Power Inc. 175 Addison Road Windsor, CT M 1/18/2001 BCS-FBB James Thomas Trimble Alternate Black & Veatch Corporation Lamar Avenue Overland Park, KS Principal: James P. Walawender SE 08/03/2016 BCS-FBB Laura E. Moreno Staff Liaison National Fire Protection Association 1 Batterymarch Park Quincy, MA /6/2015 BCS-FBB Page 8 of 89 1

9 Attachment C: F2018 Revision Cycle Schedule Page 9 of 89

10 Fall 2018 Revision Cycle Process Stage Process Step Dates for TC Public Input Stage (First Draft) Dates for TC with CC Public Input Closing Date* 1/05/2017 1/05/2017 Final Date for TC First Draft Meeting 6/15/2017 3/16/2017 Posting of First Draft and TC Ballot 8/03/2017 4/27/2017 Final date for Receipt of TC First Draft ballot 8/24/2017 5/18/2017 Final date for Receipt of TC First Draft ballot - recirc 8/31/2017 5/25/2017 Posting of First Draft for CC Meeting 6/01/2017 Final date for CC First Draft Meeting 7/13/2017 Posting of First Draft and CC Ballot 8/03/2017 Final date for Receipt of CC First Draft ballot 8/24/2017 Final date for Receipt of CC First Draft ballot - recirc 8/31/2017 Post First Draft Report for Public Comment 9/07/2017 9/07/2017 Comment Stage (Second Draft) Tech Session Preparation (& Issuance) Tech Session Appeals and Issuance Public Comment Closing Date* 11/16/ /16/2017 Notice Published on Consent Standards (Standards that received no Comments) Note: Date varies and determined via TC ballot. Appeal Closing Date for Consent Standards (Standards that received no Comments) Final date for TC Second Draft Meeting 5/17/2018 2/08/2018 Posting of Second Draft and TC Ballot 6/28/2018 3/22/2018 Final date for Receipt of TC Second Draft ballot 7/19/2018 4/12/2018 Final date for receipt of TC Second Draft ballot - recirc 7/26/2018 4/19/2018 Posting of Second Draft for CC Meeting 4/26/2018 Final date for CC Second Draft Meeting 6/07/2018 Posting of Second Draft for CC Ballot 6/28/2018 Final date for Receipt of CC Second Draft ballot 7/19/2018 Final date for Receipt of CC Second Draft ballot - recirc 7/26/2018 Post Second Draft Report for NITMAM Review 8/02/2018 8/02/2018 Notice of Intent to Make a Motion (NITMAM) Closing Date 8/30/2018 8/30/2018 Posting of Certified Amending Motions (CAMs) and Consent Standards 10/11/ /11/2018 Appeal Closing Date for Consent Standards 10/26/ /26/2018 SC Issuance Date for Consent Standards 11/05/ /05/2018 Association Meeting for Standards with CAMs Appeal Closing Date for Standards with CAMs SC Issuance Date for Standards with CAMs TC = Technical Committee or Panel CC = Correlating Committee As of 8/30/2016 Page 10 of 89

11 Attachment D: NFPA 85 Chapter 7 Public Input Report Page 11 of 89

12 Public Input No. 100-NFPA [ Global Input ] Replace "practicable" with "practical" Statement of Problem and Substantiation for Public Input Something is practicable if it can be done by any means, no matter how impractical. Practical is a word engineers use to allow judgment when making engineering decisions. Submitter Full Name: Theodore Lemoff Organization: TLemoff Engineering Submittal Date: Wed Oct 05 09:52:10 EDT 2016 Copyright Assignment I, Theodore Lemoff, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Theodore Lemoff, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature of 1 Page 12 of 89 1/6/2017 3:24 PM

13 Public Input No. 215-NFPA [ Global Input ] All technical committees should review the proposed changes to the definitions of "trip," "interlock," and "permissive," as well as the recommendations below: Draft Definitions and Guidelines developed by the NFPA 85 Correlating Committee and Fundamentals Committee Draft definitions for interlock, permissive, and trip. Interlock: A function which prevents, limits, stops, or initiates the operation of equipment or a subsequent function. o Annex language: An interlock can consist of a sensing function, a control function, and an output or a final control element. The interlock can be accomplished with the use of any combination of electrical devices, mechanical devices, or logic. Permissive: An interlock that functions only to allow initiation of the operation of equipment or a subsequent function Trip: An interlock that shuts down equipment when a predefined set of conditions exists. It was decided that permissive and trip should be subdefinitions under interlock, but they should also appear in alphabetical order with a reference back to the interlock section, similar to what is done for coal in Recommendations for other Chapters. The following recommendations have been developed for the use of interlock and related terms throughout the code: Safety device, protective device, interlock device and safety interlock device appear to be synonymous. The Fundamentals Committee suggests using "interlocks" or "interlocks and associated devices" as appropriate. Safety function is similar to the new definition of an interlock. The Fundamentals Committee suggests using the term interlock. Master fuel trip device is not defined in Chapter 3, and is only used in Chapter 7 and its Annex. If this is intentionally different from a master fuel trip relay, it should be defined in Chapter 3. Otherwise, it should be replaced with master fuel trip relay. Safety shutdown is only used in Chapters 3, 4, and 5, and the Annex to Chapters 5 and 7. For consistency throughout the document, the Fundamentals Committee recommends replacement with trip or master fuel trip, as appropriate. The Fundamentals Committee will be removing the term from Chapters 3 and 4. Emergency shutdown is used in Chapters 4, 6, 7, 8, and 10, and the Annex to Chapters 4, 6, and 7, as well as Annex B. This appears to be the same as a safety shutdown, so the Committee recommends replacement with trip or master fuel trip as in the comment above. The Fundamentals Committee will be removing the term from Chapter 4. Abnormal shutdown is only used twice, both times in Chapter 6. This appears to be synonymous with trip and for consistency, that term should be substituted. Interlock system is used in Chapters 4, 5, 6, 7, 8, and 9. The Fundamentals Committee will be removing the term from Chapter 4 by replacing it with interlocks and recommends replacement in other chapters. Statement of Problem and Substantiation for Public Input To comply with the recommendations of the Fundamentals TC. of 2 Submitter Full Name: Joseph Fehr Organization: Sega, Inc. Page 13 of 89 1/6/2017 3:23 PM

14 Submittal Date: Wed Jan 04 15:10:04 EST 2017 Copyright Assignment I, Joseph Fehr, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Joseph Fehr, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature of 2 Page 14 of 89 1/6/2017 3:23 PM

15 Public Input No. 145-NFPA [ Section No ] Safety Shutoff Valve for Burner or Lance For each burner or lance, the minimum requirement shall be two safety shutoff valves with a valve proving system, an intermediate vent valve (double block and vent) or equivalent valve arrangement For units with multiple burners or lances, a header safety shutoff valve and provisions to automatically vent the piping volume between the header safety shutoff valve and any individual burner or lance safety shutoff valves shall also be provided Multiple burners or lances supplied from a common set of safety shutoff valves shall be treated as a single (individual) burner or lance. [See , (O), and (P).] Statement of Problem and Substantiation for Public Input The valve proving system and vent valves offer equivalent safety, and the use of these devices had already permitted in single burner boiler since the late 1990s. Submitter Full Name: Kevin Carlisle Organization: Karl Dungs, Inc. Submittal Date: Fri Dec 16 14:46:57 EST 2016 Page 15 of of 372 1/9/2017 1:48 PM

16 Public Input No. 198-NFPA [ Section No [Excluding any Sub-Sections] ] For each igniter, the minimum requirement shall be two safety shutoff valves with an intermediate vent valve or equivalent valve arrangement, unless a Class 3 Special Igniter is provided. Statement of Problem and Substantiation for Public Input Section (G) allows for the use of Class 3 Special Igniters, but Section requires all igniters to have "two safety shutoff valves with an intermediate vent valve or equivalent valve arrangement" which would prohibit Class 3 Special Igniters.The proposed change allows for Class 3 Special Igniters also. Submitter Full Name: Gail Lance Organization: Babcock & Wilcox Company Submittal Date: Tue Jan 03 19:39:52 EST 2017 Page 16 of of 372 1/9/2017 1:48 PM

17 Public Input No. 199-NFPA [ Section No (E) ] (E) The value of the negative pressure at which the ID fan trip is activated shall be greater more negative than that specified in (A). Statement of Problem and Substantiation for Public Input It is confusing as to whether the committee wants the user to trip that ID Fan at a more positive value (e.g. -9>-10) or at a more negative value (e.g.-11<-10). Section specifically calls out a "more negative" and I believe that was the intent of the CFB committee. Submitter Full Name: Gail Lance Organization: Babcock & Wilcox Company Submittal Date: Tue Jan 03 19:52:49 EST 2017 Page 17 of of 372 1/9/2017 1:48 PM

18 Public Input No. 197-NFPA [ Section No ] Mandatory Automatic Fuel Trip for Gas-Fired Warm-Up Burners. A warm-up burner system fuel trip of each burner or group of burners serviced by a single control valve shall result from any of the following conditions: (1) Fuel pressure at the point of supervision below the minimum required for stable operation of the burner as established by the burner manufacturer or by trial (2) Loss of the air supply fan or inadequate airflow to the burner (3) Loss of all flame (4) Last individual burner safety shutoff valve closed (5) * High fuel gas pressure at the point of supervision above the maximum allowed for the burner (6) Master fuel trip (7) High duct burner discharge temperature (8) High fuel gas supply pressure Statement of Problem and Substantiation for Public Input Section implies that either an MFT is on high gas supply pressure or a full relieving capacity vent in the fuel supply system is required and references the user to section Neither conditions are addressed in was revised to take into account the requirements of Submitter Full Name: Gail Lance Organization: Babcock & Wilcox Company Submittal Date: Tue Jan 03 19:16:09 EST 2017 Page 18 of of 372 1/9/2017 1:48 PM

19 Public Input No. 124-NFPA [ Section No. A (2) ] A (2) The ID fan head capability increases due to significant draft losses beyond the boiler enclosure or for other reasons, such as excessive ID fan test block maximum head capability margins. Where the ID fan test block maximum head capability is more negative than 8.7 kpa ( 35 in. w.g.), consideration should be given to an increased negative design pressure. Statement of Problem and Substantiation for Public Input There are inconsistencies in NFPA 85 regarding structural design being based on the maximum head capabilities of the fans versus the fan test block conditions. The fan test block condition is not the same as the maximum head capability but the Code seems to use the terms interchangeably. A typical centrifugal fan curve peaks before dropping to the test block point, so the most damage it is capable of is better represented by the maximum head capability of the fan rather than the test block. Ambient air should be utilized as the basis for determining the maximum head capability because the coldest air condition anticipated for the site would provide the highest maximum head for the fan. For this reason, the term test block, where it is currently used in the Code, should be replaced with maximum head capability and ambient air should be the basis for that determination. Submitter Full Name: Dale Evely Organization: Southern Company Services Inc Submittal Date: Tue Nov 29 05:58:41 EST 2016 Page 19 of of 372 1/9/2017 1:48 PM

20 Public Input No. 117-NFPA [ Section No. A (10) ] A (10) Analyzers could contain heated elements that exceed the autoignition temperature of some fuels. Zirconium oxide analyzers, commonly used for oxygen analysis, contain an element heated to 704 C (1300 F). This high temperature element presents a potential ignition source to unburned fuel that could be present at start up. Some analyzers are designed to protect the sampled space from the ignition source by providing flashback protection (such as flame arresters in the sample gas path). It should be noted, however, that flame arrestors might only work below a certain temperature which is usually not quantified, might not quench a flame as well once it becomes corroded, and might induce a speed of response delay that could be detrimental to the control or protection strategy. Consideration should be given to powering down analyzers during boiler or fuel trip situations if they can exceed the autoignition temperature of the fuel being fired. Alternatively, consideration could be given to utilizing analyzer technologies that operate below autoignition temperatures or utilizing installation techniques that mount the analyzer external to the process where the flue gas sampling can be shutoff during a boiler or fuel trip situation. Statement of Problem and Substantiation for Public Input None of the insurers contacted had any specific loss history that they could identify on oxygen analyzer initiated fires so it is difficult to determine how much of a hazard this situation actually provides. There is not, therefore, justification to state a mandatory requirement beyond the present requirements found in , (2) and (10) in NFPA Additional Annex material, however, would be helpful so that was developed based on information provided by a number of analyzer manufacturers. Related Public Inputs for This Document Related Input Public Input No. 115-NFPA [Section No. A ] Public Input No. 116-NFPA [Section No. A (2)] Relationship Submitter Full Name: Dale Evely Organization: Southern Company Services Inc Submittal Date: Thu Nov 17 13:13:46 EST 2016 Page 20 of of 372 1/9/2017 1:48 PM

21 Attachment E: Review of Fundamentals Technical Committee actions Page 21 of 89

22 First Revision No. 102-NFPA [ Section No ] This code covers strength of the structure, operation and maintenance procedures, combustion and draft control equipment, safety interlocks, alarms, trips, and other related controls that are essential to safe equipment operation. Submittal Date: Tue Jan 17 09:44:28 EST 2017 : To align with the interlock definitions included in Chapter 3. (FRs 103, 104, 105) Response Message: Public Input No. 22-NFPA [Section No ] Page 22 of 89 1 of 68 1/23/2017 5:00 PM

23 Committee Input No. 135-NFPA [ Section No ] Chapter 5, Single Burner Boilers, covers single burner boilers that fire the following fuels: (1) Fuel Natural gas as defined in (2) * Other commercial grade fuel gas having a calorific value and characteristics similar to natural gas (3) Fuel oil as defined in Fuel gas and fuel (4) of Grades 2, 4, 5, or 6 (5) Gas and oil that are fired simultaneously for fuel transfer (6) Fuel gas Gas and fuel oil that are fired simultaneously and continuously (7) Non-commercial grade fuel gases Submittal Date: Tue Jan 17 14:47:19 EST 2017 Committee Statement: Response Message: The scope of Chapter 5 written in Chapter 1 needs to match the contents of the equipment specific chapter. The Fundamentals Committee will reconsider a revision to the Chapter 5 scope at the Second Draft meeting, once additional language has been added to Chapter 5 by the SBB Committee to cover the other fuels The SBB Committee wishes to amend the scope statement to define and address the use of non-commercial fuels in its chapter. Non-commercial fuels such as landfill gas, process off-gases, etc. are used in increasing single burner applications. The Technical Committee will continue to add material to address specific concerns and requirements when using these types of fuels. Public Input No. 173-NFPA [Section No ] Page 23 of 89 2 of 68 1/23/2017 5:00 PM

24 First Revision No. 108-NFPA [ Section No ] Where solid fuel is fired simultaneously with other fuels (e.g., a solid fuel stoker fired in combination with fuel gas, fuel oil, or pulverized auxiliary fuel), additional controls and interlocks shall include those covered in Chapters 5, 6, and 9. Exception No. 1: The purge requirements of Chapters 5 and 6 shall not be required when the stoker is firing and the boiler is on-line. In those cases, if no cooling air is being provided to the auxiliary burners, a purge of their associated air supply ducts shall be provided. Exception No. 2: Where fuel oil or fuel gas is fired in a supervised manual system in accordance with Chapter 5, the excessive steam pressure interlock shall not be required. Submittal Date: Tue Jan 17 10:03:56 EST 2017 Committee Statement: Response Message: The FUN Technical Committee decided that the STO and SBB Technical Committees should address these exceptions in their respective chapters. Public Input No. 23-NFPA [Section No ] Page 24 of 89 3 of 68 1/23/2017 5:00 PM

25 Committee Input No. 101-NFPA [ Chapter 2 ] Chapter 2 Referenced Publications 2.1 General. The documents or portions thereof listed in this chapter are referenced within this code and shall be considered part of the requirements of this document. 2.2 NFPA Publications. National Fire Protection Association, 1 Batterymarch Park, Quincy, MA NFPA 30, Flammable and Combustible Liquids Code, 2015 edition. NFPA 31, Standard for the Installation of Oil-Burning Equipment, 2011 edition. NFPA 54, National Fuel Gas Code, 2015 edition. NFPA 56 Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems,2014 edition. NFPA 68 Standard on Explosion Protection by Deflagration Venting,2013 edition. NFPA 69, Standard on Explosion Prevention Systems, 2014 edition. NFPA 70, National Electrical Code, 2014 edition. 2.3 Other Publications ASCE Publications. American Society of Civil Engineers, 1801 Alexander Bell Drive, Reston, VA ASCE 7, Minimum Design Loads for Buildings and Other Structures, ASME Publications. American Society of Mechanical Engineers, Two Park Avenue, New York, NY ASME B31.1, Power Piping, ASME B31.3, Process Piping, ASTM Publications. ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA ASTM D388, Standard Classification of Coals by Rank, ASTM D396, Standard Specification for Fuel Oils, ASTM D409/D409M, Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method, ASTM D1655, Standard Specification for Aviation Turbine Fuels, c. ASTM D2880, Standard Specification for Gas Turbine Fuel Oils, 2003, reaffirmed CGA Publications. Compressed Gas Association, George Carter Way, Suite 103, Chantilly, VA ANSI/ CGA G-2.1/ANSI K61.1, Safety Requirements for the Storage and Handling of Anhydrous Ammonia, FCI Publications. Fluid Controls Institute, 1300 Sumner Avenue, Cleveland, OH ANSI/FCI 70-2, Control Valve Seat Leakage, Page 25 of 89 4 of 68 1/23/2017 5:00 PM

26 2.3.6 Government Publications. U.S. Government Printing Publishing Office, 732 North Capitol Street NW, Washington, DC Title 29, Code of Federal Regulations, Part , General Safety and Health Provisions IEC Publications. International Electrotechnical Commission, 3, rue de Varembé, P.O. Box 131, CH-1211, Geneva 20, Switzerland. IEC 61508, Functional Safety of Electrical/Electronic Programmable Electronic Safety-Related Systems, Military Specifications. Department of Defense Single Stock Point, Document Automation and Production Service, Building 4/D, 700 Robbins Avenue, Philadelphia, PA MIL-T-5624, Turbine Fuel, Aviation, Grade JP4, JP5, and JP5/JP8 ST, Other Publications. Merriam-Webster s Collegiate Dictionary, 11th edition, Merriam-Webster, Inc., Springfield, MA, References for Extracts in Mandatory Sections. NFPA 13D, Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, edition. NFPA 40, Standard for the Storage and Handling of Cellulose Nitrate Film, edition. NFPA 72, National Fire Alarm and Signaling Code, edition. NFPA 850, Recommended Practice for Fire Protection for Electric Generating Plants and High Voltage Direct Current Converter Stations, 2015 edition. Submittal Date: Fri Jan 13 16:42:40 EST 2017 Committee Statement: The committee will review the referenced documents at the second draft meeting so that they will have a more timely picture of what has been updated since the last edition was issued. Public Input No. 241-NFPA [Section No ] Page 26 of 89 5 of 68 1/23/2017 5:00 PM

27 First Revision No. 109-NFPA [ Section No ] Manual Supervised Burner Management System. A burner management system by which a furnace is purged and a burner is started, ignited, and stopped manually. Interlocks are included to ensure that the operation follows established, proper procedures. with supervision by interlocks. Submittal Date: Tue Jan 17 10:06:14 EST 2017 : To align with the definition of interlock revised by FR 103. Response Message: Public Input No. 24-NFPA [Section No ] Page 27 of 89 6 of 68 1/23/2017 5:00 PM

28 First Revision No. 139-NFPA [ Section No ] Pulverized Coal. Coal that is reduced to fine particles. A Pulverized Coal is typically reduced to a size such that at least 50 percent can pass through a 200-mesh (74 microns) sieve. Submittal Date: Tue Jan 17 15:45:27 EST 2017 : The definition is revised to remove requirements per the Manual of Style. Response Message: Page 28 of 89 7 of 68 1/23/2017 5:00 PM

29 First Revision No. 136-NFPA [ Section No ] * Liquefied Petroleum Gas ( LP-Gas). A material that Any material having a vapor pressure not exceeding that allowed for commercial propane that is composed predominantly of any of the following hydrocarbons, either by themselves (except propylene) or as mixtures thereof : propane, propylene, n-butane, isobutane butane (normal butane or isobutane), and butylenes. [ ] A Liquefied Petroleum Gas (LP-Gas). In the pure state propylene (Chemical Abstract Service ) has a vapor pressure of psig ( kpa) at 70 F (21.1 C). The vapor pressure of commercial propane (Chemical Abstract Service ) at 70 F (21.1 C) is 124 psig (855 kpa). Although commercial propane can contain some propylene, as in impurity, propylene in the pure state does not meet the definition of LP-Gas. Propylene in the pure state is commonly found in use as an industrial fuel gas. (See NFPA 51.) [ ] Submittal Date: Tue Jan 17 15:18:33 EST 2017 Committee Statement: Response Message: The definition is updated to be consistent with the applicable NFPA code, and the definition is relocated to be a subdefinition of Fuel Gas. Page 29 of 89 8 of 68 1/23/2017 5:00 PM

30 First Revision No. 137-NFPA [ Section No ] * Natural Gas. A gaseous fuel occurring in nature and consisting mostly of a mixture of organic compounds, normally methane, material that is composed primarily of methane and that can contain minor quantities of ethane, propane, nitrogen, and butane. other components. A The calorific value of natural gases varies between about 700 Btu/ft 3 and 1500 Btu/ft 3 ( 26.1 MJ/m 3 and 55.9 MJ/m 3 (700 Btu/ft 3 and 1500 Btu/ft 3 ), the majority averaging 1000 Btu/ft 3 ( 37.3 MJ/m 3 (1000 Btu/ft 3 ). Submittal Date: Tue Jan 17 15:28:24 EST 2017 Committee Statement: Response Message: The definition is updated to be consistent with NFPA 59A Liquefied Natural Gas, with some appropriate modification, and moved to be a subdefinition of Fuel Gas. Page 30 of 89 9 of 68 1/23/2017 5:00 PM

31 First Revision No. 138-NFPA [ Section No ] * Pulverized Fuel. Solid fuel that is reduced to fine particles. A Pulverized fuel is typically reduced to a size such that at least 50 percent will pass through a 200-mesh (74 microns) sieve. Submittal Date: Tue Jan 17 15:38:48 EST 2017 : The definition is revised to remove requirements per the Manual of Style. Response Message: Page 31 of of 68 1/23/2017 5:00 PM

32 First Revision No. 140-NFPA [ Section No ] Fuel Gas (Gas Fuel). Gaseous fuels defined as Natural Gas (see ) or LP-Gas (see ). Submittal Date: Tue Jan 17 15:50:38 EST 2017 : Fuel gas belongs as a subdefinition of Fuel. Response Message: Page 32 of of 68 1/23/2017 5:00 PM

33 First Revision No. 110-NFPA [ Section No ] Fuel Trip. The automatic The total shutoff of a specific fuel as the result of an interlock or operator action. Submittal Date: Tue Jan 17 10:08:05 EST 2017 Committee Statement: Response Message: This revision is based on the revised and new definitions for trip and interlock. Note that the operator action is considered an interlock. Public Input No. 25-NFPA [Section No ] Page 33 of of 68 1/23/2017 5:00 PM

34 First Revision No. 111-NFPA [ Section No ] Hardwired. The method of interconnecting signals or interlocks or devices to a logic system or between logic systems using a dedicated interconnection for each individual signal. When the term hardwired is applied to the logic system itself, it refers to the method of using individual devices and interconnecting wiring to program and perform the logic functions without the use of software-based logic solvers. Submittal Date: Tue Jan 17 10:09:48 EST 2017 Committee Statement: Response Message: This revision is based on the revised definition of interlocks. Interlocks will now be defined as "functions" rather than "devices." Public Input No. 26-NFPA [Section No ] Page 34 of of 68 1/23/2017 5:00 PM

35 First Revision No. 141-NFPA [ Sections , , ] Sections , , * Class 1 Igniter. An igniter that is applied to ignite the fuel input through the burner and to support ignition under any burner light-off or operating conditions. Its location and capacity are such that it will provide sufficient ignition energy, generally in excess of 10 percent of full load burner input, at its associated burner to raise any credible combination of burner inputs of both fuel and air above the minimum ignition temperature * Class 2 Igniter. An igniter that is applied to ignite the fuel input through the burner under prescribed light-off conditions. It is also used to support ignition under low load or certain adverse operating conditions. The range of capacity of such igniters is generally 4 percent to 10 percent of full load burner fuel input * Class 3 Igniter. A small igniter applied particularly to fuel gas and fuel oil burners to ignite the fuel input to the burner under prescribed light-off conditions. The capacity of such igniters generally does not exceed 4 percent of the full load burner fuel A The heat input of a Class 1 Igniter is generally in excess of 10 percent of maximum burner heat input. A The heat input of a Class 2 Igniter is generally 4 percent to 10 percent of maximum burner heat input. A The heat input of a Class 3 Igniter generally does not exceed 4 percent of maximum burner heat input. Supplemental Information File Name FR_141_A docx Description Submittal Date: Tue Jan 17 17:08:41 EST 2017 Committee Statement: This revision removes the supplemental information from the igniter class definition, leaving the intended functional requirements intact, and relocates the supplemental information to the Annex. Response Message: Public Input No. 211-NFPA [New Section after A ] Page 35 of of 68 1/23/2017 5:00 PM

36 Public Input No. 206-NFPA [Section No ] Public Input No. 210-NFPA [New Section after A ] Public Input No. 208-NFPA [Section No ] Public Input No. 209-NFPA [New Section after A ] Public Input No. 207-NFPA [Section No ] Public Input No. 201-NFPA [Sections , , ] Page 36 of of 68 1/23/2017 5:00 PM

37 Committee Input No. 143-NFPA [ New Section after ] * Class 2 Special Igniter: An integrated burner-igniter system that utilizes a staged ignition system within the burner. The primary igniter shall utilize oil or natural gas, or a plasma arc to ignite a portion of the main fuel stream which then provides ignition to the remainder of hte fuel stream. It is also used to support ignition under low load conditions where the main flame is proven. Submittal Date: Tue Jan 17 18:21:57 EST 2017 Committee Statement: The addition of these definitions relating to plasma arc igniters is contingent on action by the MBB Committee. --- Problem statement: Existing igniter systems are typically independent of the burner they are intended to ignite. A new technology is available whereby a portion of the main fuel stream is ignited internally in the burner barrel using oil, gas or plasma. The technology necessitates adjustments in operating methodology for proper function. A task group comprised of members from BCS-MBB has studied this technology. This paragraph, in conjunction with other proposed paragraphs, addresses that new technology. SUBSTANTIATION: The proposed code revisions will provide minimum safety requirements that can enable US coal fired power plants to respond to real time market conditions in a timely manner. The technology is desirable as it reduces or eliminates the amount of premium fuel used to start a boiler. The technology has been successfully applied outside the US with installations in over 1,000 coal fired boilers in both the plasma and oil igniter form, and is available from multiple suppliers/manufacturers. These installations have helped determine the suitability of the technology and gives confidence in its safety potential. To enhance user safety a new igniter classification (a "Special" derivative of the existing Class II) which requires usage under prescribed conditions only. The key distinguishing characteristic between the igniter classes in NFPA 85 is the difference in igniter ability to tolerate process variations. Based on the igniter ability to function under difficult conditions, the implementation and the privileges of the igniter class vary, Class I can be used under 'all credible' conditions ( ) but Class II can be used under 'prescribed' conditions only ( ) The restrictions to prescribed conditions is also required due to the difficullty in igniter flame proving in some of these applications for the plasma arc style. The location of the igniter fllame inside the burner barrel, where it cannot be reliably sensed, requires the use of a proven main flame under 'non-initial' start-up conditions for safe operation. This revision will help avoid unsafe application of this new technology by providing clear and Page 37 of of 68 1/23/2017 5:00 PM

38 Response Message: consistent minimum safety requirements. Public Input No. 157-NFPA [New Section after ] Public Input No. 158-NFPA [New Section after A ] Page 38 of of 68 1/23/2017 5:00 PM

39 Committee Input No. 144-NFPA [ New Section after ] * Integrated Burner-Igniter System An igniter integral to a staged ignition burner assembly, whereby a portion of the main fuel stream is raised to a temperature above its auto-ignition temperatureand this heated fuel then ignites the remainder of the main fuel stream as it enters the furnace. Submittal Date: Tue Jan 17 18:24:46 EST 2017 Committee Statement: The addition of these definitions relating to plasma arc igniters is contingent on action by the MBB Committee. --- Problem Statement Existing igniter systems are typically independent of the burner they are intended to ignite. A new technology is available whereby a portion of the main fuel stream is ignited internally in the burner barrel using oil, gas or plasma. The technology necessitates adjustments in operations methodology for proper function. A task group comprised of members from BCS-MBB has studied this technology. This paragraph, in conjunction with other proposed paragraphs, addresses that new technology. Substantiation The proposed code revision will provide minimum safety requirements of a new technology that can enable US coal fired power plants to respond to real time market conditions in a timely manner. The technology is desirable because it reduces, or eliminates, the amount of premium support fuel used to warm up a boiler and to bring on successive mill groups. The technology has been successfully applied outside the US with installations in over 1,000 coal fired boilers in both the plasma and oil igniter form; and is available from multiple suppliers/manufacturers. These installations have helped determine the suitability of the technology for US plants and give confidence in its safety potential. To enhance user safety the system is being proposed as a new igniter classification (a Special derivative of the existing Class II) which requires the usage to be under defined conditions only. The key distinguishing characteristic between the igniter classes in the NFPA 85 code is the difference in igniter ability to tolerate process variations. Based on the igniter ability to function under difficult conditions, the implementation and the privileges of the igniter class vary. Whereas Class I can be used under all credible conditions ( ), Class II can be used under prescribed ( ) light off conditions only. The restriction to prescribed conditions is also required due to the difficulty in igniter flame proving in Page 39 of of 68 1/23/2017 5:00 PM

40 some of these applications for the plasma igniters form. The location of the igniter flame inside the burner barrel, where it cannot be reliably sensed with existing flame proving technologies, requires the use of a proven main burner flame under non initial start-up conditions for safe operation. This revision will help avoid unsafe application of this new technology by providing clear and consistent minimum safety requirements. Response Message: Public Input No. 159-NFPA [New Section after ] Public Input No. 160-NFPA [New Section after A ] Page 40 of of 68 1/23/2017 5:00 PM

41 Committee Input No. 145-NFPA [ New Section after ] * Concentrated Flame Igntiter An integrated burner-igniter system that utilizes either oil or gas to raise the pulveized coal stream to its autoignition temperature. Submittal Date: Tue Jan 17 18:25:45 EST 2017 Committee Statement: The addition of these definitions relating to plasma arc igniters is contingent on action by the MBB Committee. --- Problem Statement Existing igniter systems are typically independent of the burner they are intended to ignite. A new technology is available whereby a portion of the main fuel stream is ignited internally in the burner barrel using oil, gas or plasma. The technology necessitates adjustments in operations methodology for proper function. A task group comprised of members from BCS-MBB has studied this technology. This paragraph, in conjunction with other proposed paragraphs, addresses that new technology. Substantiation The proposed code revision will provide minimum safety requirements of a new technology that can enable US coal fired power plants to respond to real time market conditions in a timely manner. The technology is desirable because it reduces, or eliminates, the amount of premium support fuel used to warm up a boiler and to bring on successive mill groups. The technology has been successfully applied outside the US with installations in over 1,000 coal fired boilers in both the plasma and oil igniter form; and is available from multiple suppliers/manufacturers. These installations have helped determine the suitability of the technology for US plants and give confidence in its safety potential. To enhance user safety the system is being proposed as a new igniter classification (a Special derivative of the existing Class II) which requires the usage to be under defined conditions only. The key distinguishing characteristic between the igniter classes in the NFPA 85 code is the difference in igniter ability to tolerate process variations. Based on the igniter ability to function under difficult conditions, the implementation and the privileges of the igniter class vary. Whereas Class I can be used under all credible conditions ( ), Class II can be used under prescribed ( ) light off conditions only. The restriction to prescribed conditions is also required due to the difficulty in igniter flame proving in some of these applications for the plasma igniters form. The location of the igniter flame inside the Page 41 of of 68 1/23/2017 5:00 PM

42 burner barrel, where it cannot be reliably sensed with existing flame proving technologies, requires the use of a proven main burner flame under non initial start-up conditions for safe operation. This revision will help avoid unsafe application of this new technology by providing clear and consistent minimum safety requirements. Response Message: Public Input No. 161-NFPA [New Section after ] Public Input No. 162-NFPA [New Section after A ] Page 42 of of 68 1/23/2017 5:00 PM