Technical Committee on Fluidized Bed Boilers AGENDA NFPA Headquarters 1 Batterymarch Park Quincy, MA 02169 1. Chair s welcome, call to order, and opening remarks at 1:00 pm EST. 2. Self-Introduction of Committee Members and Guests 3. Approval of Minutes from the April 5, 2010 Meeting via teleconference. See www.nfpa.org/85. 4. Staff Liaison Report A. Committee membership update (For the period April 5, 2010 Feb. 5, 2013) Name Category Change Date William George U (Principal) Resign 4/6/2010 David Habenicht SE (Principal) Resign 6/8/2011 David Pickles U (Principal) Appoint 8/2/2010 (Total Voting Members 13; M=38%, SE=23%, U=23%; I=8%; IM = 8%) B. Revision Cycle Review and timeline (Attachment A) 5. Old Business A. Gasifiers. The TC discussed adding coverage for gasifiers but determined that interest is limited. The TC requested that gasifiers remain on the agenda for periodic review as the technology matures. 6. New Business A. Create First Revision of Chapter 7. The committee should review the Public Input (Attachment B) and revise chapter 7 of NFPA 85 as appropriate. B. Review BCS-FUN actions. The committee members are asked to review the actions of the Fundamentals committee (sent under separate cover) and bring forward any items warranting further dicussion. C. Industry Update. The committee should discuss current projects, new technology, and any other items related to fluidized bed boilers that may be of general interest. 7. Other Items? 8. Date/Location of Next Meeting. The Second Draft meeting must take place between Nov. 15, 2013 and January 24, 2014. The BCS-FUN meeting is tentatively scheduled for Dec 4-5, 2013 in Atlanta, GA. 9. Adjournment.
Attachment A: Fall 2014 Revision Cycle
2014 FALL REVISION CYCLE *Public Input Dates may vary according to documents and schedules for Revision Cycles may change. Please check the NFPA Website for the most up to date information on Public Input Closing Dates and schedules at www.nfpa.org/document # (i.e. www.nfpa.org/101) and click on the Next Edition tab Process Stage Public Input Stage (First Draft) Process Step Dates for TC Dates for TC with CC Public Input Closing Date* 1/4/2013 1/4/2013 Final date for TC First Draft Meeting 6/14/2013 3/15/2013 Posting of First Draft and TC Ballot 8/2/2013 4/26/2013 Final date for Receipt of TC First Draft ballot 8/23/2013 5/17/2013 Final date for Receipt of TC First Draft ballot recirc 8/30/2013 5/24/2013 Posting of First Draft for CC Meeting 5/31/2013 Final date for CC First Draft Meeting 7/12/2013 Posting of First Draft and CC Ballot 8/2/2013 Final date for Receipt of CC First Draft ballot 8/23/2013 Final date for Receipt of CC First Draft ballot recirc 8/30/2013 Post Final First Draft for Public Comment 9/6/2013 9/6/2013 Public Comment closing date 11/15/2013 11/15/2013 Final Date to Publish Notice of Consent Documents (Documents That Received No Comments) 11/22/2013 11/22/2013 Appeal Closing Date for Consent Documents (15 Days) (Documents That Received No Comments) 12/7/2013 12/7/2013 Final date for TC Second Draft Meeting 5/2/2014 1/24/2014 Posting of Second Draft and TC Ballot 6/13/2014 3/7/2014 Comment Stage Final date for Receipt of TC Second Draft Ballot 7/7/2014 3/28/2014 (Second Draft) Final date for receipt of TC Second Draft ballot recirc 7/14/2014 4/4/2014 Posting of Second Draft for CC Mtg 4/11/2014 Final date for CC Second Draft Meeting 5/23/2014 Posting of Second Draft for CC Ballot 6/13/2014 Final date for Receipt of CC Second Draft ballot 7/7/2014 Final date for Receipt of CC Second Draft ballot recirc 7/14/2014 Post Final Second Draft for NITMAM Review 7/18/2014 7/18/2014 Tech Session Preparation (& Issuance) Notice of Intent to Make a Motion (NITMAM) Closing Date 8/22/2014 8/22/2014 Posting of Certified Amending Motions and Consent Documents 10/17/2014 10/17/2014 Appeal Closing Date for Consent Documents (15 Days) 11/1/2014 11/1/2014 SC Issuance Date for Consent Documents (25 Days) 11/11/2014 11/11/2014 Tech Session Association Meeting for Documents with CAMs 6/22 25/2015 6/22 25/2015 Appeals and Issuance Appeal Closing Date for Documents with CAMs (20 Days) 7/15/2015 7/15/2015 SC Issuance Dates for Documents with CAMs 8/27/2015 8/27/2015
Attachment B: Public Input
04 of 171 2/6/2013 3:15 PM Public Input No. 223-NFPA 85-2013 [ Section No. 7.2 ] 7.2 Purpose. The purpose of this chapter is to establish minimum standards for the design, installation, operation, and maintenance of atmospheric fluidized bed boilers, associated fuel-burning systems, and related systems to contribute to safe operation to the design operation and, in particular, to the prevention of furnace explosions and pressure excursions. The objective of this suggested change is to replace "safe operation" as it may not be unenforceable language. Related Public Inputs for This Document Related Input Public Input No. 222-NFPA 85-2013 [Section No. 5.2] Relationship Submitter Full Name: Ted Jablkowski Organization: Fives North American Combustion Submittal Date: Thu Jan 03 16:51:05 EST 2013 I, Ted Jablkowski, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Ted Jablkowski, and I agree to be legally bound by the above and the terms and
05 of 171 2/6/2013 3:15 PM Public Input No. 153-NFPA 85-2013 [ Section No. 7.3.3.8.2.1 ] 7.3.3.8.2.1 The procedure shall include inspections by the owner/operator that start from the upper elevations of the hot cyclone(s) and other equipment and proceed to each space or chute below. As written, this paragraph is open to misinterpretation as to who should do the inspection. Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies. Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 14:04:37 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and
06 of 171 2/6/2013 3:15 PM Public Input No. 155-NFPA 85-2013 [ Section No. 7.4.2.1.3.1(C) ] (C) Observation ports shall be provided to allow owner/operator inspection of the duct and warm-up burners. As written, this paragraph is open to misinterpretation as to who should do the inspection. Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies. Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 14:16:37 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and
07 of 171 2/6/2013 3:15 PM Public Input No. 156-NFPA 85-2013 [ Section No. 7.6.2.1.1 ] 7.6.2.1.1 Preparation for starting shall include a thorough inspection by the owner/operator and shall verify the following: (1) The furnace and gas passages are in good repair and free of foreign material. (2) All personnel are evacuated from the unit and associated equipment, all access and inspection doors are closed, and all equipment and instrumentation are ready for operation. (3) All airflow and flue gas flow control dampers have been operated through their full range to check the operating mechanism. (4) All adjustable individual burner dampers or registers have been operated through their full range to check the operating mechanism. (5) All safety shutoff valves are operational and closed, and ignition sparks are de-energized. (6) The feeder equipment is effectively isolated to prevent the leakage of fuel or sorbent into the furnace and to prevent hot air or flue gas from the fluidized bed from leaking back into the feed system. (7) The drum water level is established in drum-type boilers, circulating flow is established in forced circulation boilers, or minimum water flow is established in once-through boilers. (8) The feeders and associated equipment are calibrated and ready for operation. (9) Energy is supplied to the control system and to the safety interlocks. (10)* The oxygen analyzer and carbon monoxide or combustibles analyzer, if provided, are operating, the carbon monoxide or combustibles indication is at zero, and oxygen indication is at maximum. (11) A complete functional check of the safety interlocks has been made, at minimum, after system maintenance. (12) A complete periodic operational test of each igniter has been made as follows: (a) (b) (c) Frequency of testing is dependent on the design and operating history of each individual unit and ignition system. As a minimum, a test shall be performed during every start-up following overhaul or other maintenance. A test shall be integrated into the starting sequence and shall follow the unit purge and precede the admission of any burner fuel. (13) Individual igniters or groups of igniters shall be permitted to be tested while the unit is in service as follows: (a) (b) Such tests shall be made with no main fuel present in the igniter's associated burner. The burner air register shall be in its start-up or light-off position as described in the established operating procedure. (14)* The furnace contains the required bed inventory as defined by the manufacturer or determined by test. As written, this paragraph is open to mininterpretation as to who should do the inspection. Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies.
08 of 171 2/6/2013 3:15 PM Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 14:22:09 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and
09 of 171 2/6/2013 3:15 PM Public Input No. 158-NFPA 85-2013 [ Section No. 7.7.5.2.1.1 ] 7.7.5.2.1.1 Preparation for starting shall include a thorough inspection by the owner/operator and shall verify the following: (1) All safety shutoff valves are closed, and all sparks are de-energized. (2) Oil ignition systems meet the requirements of Section 7.8. (3) Fuel system vents are open and venting to atmosphere outside the boiler room; lines are drained and cleared of condensate and other foreign material. (4) The correct drum water level is established in drum-type boilers, circulating flow is established in forced circulation boilers, or minimum water flow is established in once-through boilers as established by the boiler manufacturer. (5) Burner elements and igniters are positioned in accordance with the manufacturer's specification. (6) Energy is supplied to the control and interlock systems. (7) Meters or gauges are indicating fuel header pressure to the unit. As written, this paragraph is open to misinterpretation as to who should do the inspection. Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies. Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 14:30:59 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and
10 of 171 2/6/2013 3:15 PM Public Input No. 159-NFPA 85-2013 [ Section No. 7.8.5.2.1.1 ] 7.8.5.2.1.1 Preparation for start-up shall include a thorough inspection by the owner/operator and shall verify the following: (1) Energy is supplied to the control system and to the interlock systems. (2) All safety shutoff valves are closed; all sparks are de-energized. (3) Gas ignition systems meet the requirements of Section 7.7. (4) Circulating valves are open to provide and maintain hot oil in the burner headers. (5) The proper drum water level is established in drum-type boilers, circulating flow is established in forced circulation boilers, or minimum water flow is established in once-through boilers. (6) Burner guns have been checked to ensure that the correct burner tips and sprayer plates and gaskets are in place to ensure a safe operating condition. (7) Burner elements and igniters are positioned in accordance with the manufacturer's specifications. (8) Meters or gauges indicate fuel header pressure to the unit. As written, this paragraph is open to misinterpretation as to who should do the inspection. Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies. Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 14:35:36 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and
50 of 171 2/6/2013 3:15 PM Public Input No. 171-NFPA 85-2013 [ Section No. A.7.3.3.8.2.2 ] A.7.3.3.8.2.2 One method by which the absence of solids can be confirmed is by soundings. Soundings are accomplished by lowering a weighted cable from the top of the cyclone to the base of the loop seal. Visual inspections inspections by the owner/operator are also feasible if light from an opening in the loop seal can be seen from the top of the cyclone. It should be noted that these methods may not indicate the presence of solids adhering to the sides of the cyclone, the loop seal, or the connecting pipe. [See L.2.2 (10).] As written, this paragraph is open to misinterpretation as to who should do the inspection. Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies. Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 15:30:34 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and
51 of 171 2/6/2013 3:15 PM Public Input No. 11-NFPA 85-2012 [ New Section after A.7.3.3.9(1) ] A.7.3.3.9(6) Bed solidification can occur as a result of agglomeration. Alkali compounds can attach to bed material particles. These alkali compounds can have low melting points and can cause the bed particles to stick to each other to form agglomerates. In discussions with the BCS-FUN-TC the definition for agglomeration (3.3.2) is being deleted from the first draft. Defining agglomeration for this specific case precludes the use of the term in other cases within the code where agglomeration is a concern. This public comment offers annex materail to 7.3.3.9(6) to capture and explain how agglomeration occurs in this particular case. Submitter Full Name: Richard Gallagher Organization: Zurich Services Corporation Submittal Date: Tue May 29 09:47:30 EDT 2012 I, Richard Gallagher, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Richard Gallagher, and I agree to be legally bound by the above and the terms and
52 of 171 2/6/2013 3:15 PM Public Input No. 67-NFPA 85-2012 [ Section No. A.7.6.2.1.1(10) ] A.7.6.2.1.1(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). Analyzers that have that protection or that are not heated to autoignition temperature do not present an ignition hazard It should be noted, however, that flame arrestors may only work below a certain temperature which is usually not quantified, may not quench a flame as well once it becomes corroded and may 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. Discussions with a major supplier of zirconium oxide based oxygen analyzers revealed the stated limitations of flame arrestors and those limitations need to be understood by users of the Code. This same change is being proposed against identical annex material in A.5.3.4.6.3, A.6.4.2.3.4.6(2) and A.7.6.2.1.1(10). Submitter Full Name: Dale Evely Organization: Southern Company Services, Inc Submittal Date: Thu Nov 29 09:28:01 EST 2012 I, Dale Evely, 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 Dale Evely, and I agree to be legally bound by the above and the terms and
70 of 171 2/6/2013 3:15 PM Public Input No. 157-NFPA 85-2013 [ Section No. L.2.2 ] L.2.2 Recommendations. Recommendations are as follows: (1) The designers of the boiler and related plant equipment should identify the potential sources of hot solids and associated hazards and make recommendations for personnel safety. (2) The designer should give careful consideration to the selection of materials that come into direct contact with hot solids. (3) Clean-out ports, fittings that might be used as clean-out ports, and spool pieces that might be removed for rodding out blockages should be positioned so that a sudden rush of hot solids does not lead to personnel injury. Components that are removable for maintenance when the plant is out of service but that should not be removed when the plant is in service because of the risk of hot spills should be marked clearly. (4) Instrumentation and wiring needed for the safe operation of the plant should not be routed near potential sources of hot solids. If such routing is necessary, the wiring should be protected from the direct flow of the solids. (5) Fuel lines should not be located near potential sources of hot solids. The fuel lines should be protected from the direct flow of the solids. (6) Plant personnel should be trained in the potential sources of hot solids, associated hazards, and the corresponding safety procedures. (7) Procedures should be developed for cleaning obstructions that provide safety to personnel and equipment. Protective clothing and eye protection should be provided for personnel who rod out obstructions. (8) Components that might contain hot solids should be inspected frequently by the owner/operator. (9) Water-cooled screws have failed when suddenly flooded with hot bed material following the removal of an upstream blockage. The sudden transfer of large amounts of heat has resulted in overpressurizing the cooling water passages. The operators should be trained adequately and the systems designed with appropriate instrumentation, interlocks, and pressure relief devices to mitigate the risks associated with this type of event. (10) An FBC system's furnace and connected components will contain substantial quantities of hot solids for some time after a master fuel trip (MFT). Personnel should be aware of and trained to deal with the following possible results: (a) (b) (c) (d) (e) (f) Hot solids stored in a furnace-connected space may suddenly flow into another space. Care should be taken to ensure that personnel do not enter a furnace or connected space that could still contain hot solids or be connected to a space that contains hot solids. Solids stored in the cyclone or loop seal for example, due to blockage could suddenly be released and flow into another space when the blockage fails or the solids cool and their fluidization characteristics change. Operation of an FD fan, an ID fan, or other fans might not rapidly cool stored solids because the moving air could bypass the bulk of a heap of hot particles. While a surface could appear cool because of rapid heat loss due to radiation, the bulk of the heap could still be hot due to self-insulation. A large heap of solids could require many hours to cool to a safe temperature. Water might enter a body of hot solids from any of a number of sources, including a boiler tube leak. Water pouring onto the solids might not immediately wet the hot solids (much like a drop of water on a hot griddle). When the solids suddenly become wet, rapid generation of steam (steam explosion) could occur. In the event of a steam explosion, hot solids could flow upward as well as in other directions. Large hot clinkers or hot refractory could suddenly be released from the cyclone and flow into the loop seal and connected spaces with the assistance of smaller fluidizable particles. As written, paragraph (8) is open to misinterpretation as to who should do the inspection.
71 of 171 2/6/2013 3:15 PM Jurisdictional authorities (AHJ) have for many years been inappropriately interpreting NFPA 85 as containing in-service inspection responsibilities for the National Board Commissioned Boiler Inspectors employed by Authorized Inspection Agencies as defined by the National Board document NB-369 Qualifications and Duties for Authorized Inspection Agencies (AIAs) Performing Inservice Inspection Activities and Qualifications for Inspectors of Boilers and Pressure Vessels. This has caused significant legal issues for Authorized Inspection Agencies. The proposed change is intended to make it clear that NFPA 85 does not contain any requirements.for in-service inspections for these agencies. Related Public Inputs for This Document Related Input Public Input No. 132-NFPA 85-2013 [Section No. 3.2.2] Relationship Submitter Full Name: Brian Moore Organization: Hartford Steam Boiler Inspecti Submittal Date: Wed Jan 02 14:26:27 EST 2013 I, Brian Moore, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this By checking this box I affirm that I am Brian Moore, and I agree to be legally bound by the above and the terms and