ndeq neshap training subpart zzzz - engines

Download NDEQ NESHAP Training  Subpart ZZZZ - Engines

Post on 14-Jan-2016

25 views

Category:

Documents

0 download

Embed Size (px)

DESCRIPTION

NDEQ NESHAP Training Subpart ZZZZ - Engines. Melissa Ellis February 24, 2011. Overview. Objectives Industry Overview Rule Background Applicability Requirements Tips Tools & Resources. Acronyms. HP = horsepower CI = compression ignition SI = spark ignition 4S = four stroke - PowerPoint PPT Presentation

TRANSCRIPT

  • NDEQ NESHAP Training Subpart ZZZZ - EnginesMelissa EllisFebruary 24, 2011

  • OverviewObjectivesIndustry OverviewRule BackgroundApplicabilityRequirements TipsTools & Resources

  • AcronymsHP = horsepowerCI = compression ignitionSI = spark ignition4S = four stroke2S = two strokeLB = lean burnRB = rich burn

  • ObjectivesBecome familiar with industryUnderstand rule requirementsBe aware of tools & resources to help do your job more effectively

  • Industry Overview

  • Industry OverviewStationary Internal Combustion EnginesPoint of use for 12 months OR 3-12 months for seasonalNot used to propel motor vehicleNot a non-road engine

  • Industry OverviewEngines manufactured the same, used differentlyElectrical generators & powering emission units

    Compression IgnitionSpark Ignition

  • Compression Ignition EnginesDiesel or dual fuelHeat from compression auto-ignites fuel & air mixtureTwo-stroke & four-strokeDiesel trucks

  • Compression Ignition

  • Spark Ignition EnginesGasoline or natural gasSpark plug ignites fuel/air mixtureMotor vehicleTwo-stroke or Four-strokeLean burn or rich burn

  • Spark Ignition EnginesRich Burn Excess fuel in combustion chamber during combustionMfg. recommends operating air/fuel ratio divided by stoichiometric at full load = < 1.1Existing with no mfg. recommendations if O2 in exhaust at full load < 2%

  • Spark Ignition EnginesLean BurnExcess air in combustion chamberO2 rich exhaustNot rich burn

  • Spark Ignition

  • Spark Ignition Engines

  • Nebraska SourcesLOTS?96+ facilities have notified Multiple engines on-siteMany more that dont need to notifyMostly municipal power plants & asphalt/concreteMost compression ignition

  • Rule Background

  • Rule BackgroundNESHAP Subpart ZZZZ40 CFR Part 63 63.6580Title 129, Chapter 28 001.88 (not current rules)

    Initial final rule = 6/15/04 (effective 8/16/04)

  • Rule Background4 significant rule actionsOriginal: June 15, 2004 Revision: January 18, 2008 (effective 3/18/08)Revision: March 3, 2010 (effective 5/3/10)Revision: August 20, 2010 (effective 10/19/10)

  • Applicability

  • ApplicabilityStationary sourcesMajor & area sources of HAPNew & existing sources

    Need to know:Manufacture date, installation date, startup date, fuel, engine type, horsepower, displacement, black start, emergency or non-emergency

  • ApplicabilityNot subjectNot engines tested @ test cell/standRICE for national securityRequest exemption40 CFR Part 1068, Subpart CExisting emergency residential, commercial, or institutional at area sourceSome existing > 500 HP at major source

  • ApplicabilityResidential, commercial, institutionalHomes & apartmentsOffice, hotel, stores, restaurants, banks, etc.Hospitals, schools, police station, fire, etc.Farming not exemptMost smaller enginesSee Air Toxics Notebook for list

  • Emergency EnginesEmergency & required testing & maintenanceNot peak shaving for your facility or the gridDoes not have interruptible service contract with power utility

  • Emergency EnginesCan be used up to 15 hours/yr as part of demand responseCan supply emergency power as part of financial agreement100 hours/yr testing & maintenance50 hours/yr for non-emergencyIncludes 15 hours for demand response

  • Reconsideration12/7/1015 hours for demand responseEmergency conditions could lead to potential blackout (unusually low frequency, equipment overload, capacity or energy deficiency, or unacceptable voltage level)

  • Black Start & Limited UseBlack StartUsed to start combustion turbinesDifferent terminology than industry

    Limited UseOperate < 100 hours/yr

  • Requirements

  • Source ClassificationArea SourceExisting = Before 6/12/06Change in ownership doesnt make new

    New = On or after 6/12/06

  • Source ClassificationMajor SourceExisting> 500 HP = Before 12/19/02< 500 HP = Before 6/12/06

    New> 500 HP = On or after 12/19/02< 500 HP = On or after 6/12/06

  • Typical ControlsOxidation CatalystSpark ignition lean burn & compression ignitionSelective Catalytic Reduction (SCR)Spark ignition lean burn & compression ignitionNon-selective Catalytic Reduction (NSCR)Spark ignition rich burn

  • CatalystsCauses chemical reactions without being changed or consumedSteel housing contains a metal or ceramic structure which acts as a catalyst support or substrate. No moving parts, interior surfaces coated with base or precious catalytic metalsChemical reaction differs depending on lean, rich, or stoichiometric

  • Oxidation CatalystFlow through honeycomb coated with platinum metalsSmall parallel channels = high catalytic contact area to exhaust Completes combustion & mixed with free O2 in exhaustPollutants oxidized into CO2 & H2O vaporDoesnt reduce NOxMay need to be combined with SCR

  • Diesel Oxidation Catalyst

  • Selective Catalytic ReductionConverts NOx with aid of catalyst into N2 and H2OAnhydrous ammonia, aqueous ammonia or urea added to exhaust & absorbed onto catalystCO2 is a reaction product when urea is used

  • Selective Catalytic Reduction (SCR)

  • Diesel SCR

  • Non-selective Catalytic Reduction (NSCR)Also Three-Way Catalysts (stoichiometric)Causes CO to react with NOx in presence of catalystCreates N2 and H2O vapor

  • Area SourcesCompression Ignition (SI)Spark Ignition (SI)

  • No RequirementsExisting Emergency residential, commercial, & institutional at area

  • No NESHAP Requirements May Be Subject to NSPSNew area sources

  • Existing CI @ Area Work practiceEmergency (hour meter)Black startNon-emergency < 300 HP

    Numerical standardsNon-emergency > 300 HP

  • Work Practice Standards

  • Work Practice StandardsRecordsMalfunctionsMaintenanceEmergency hours of operation

    No reports or notifications required

  • Non-emergency > 300 HPCO limitsInitial TestingClosed crankcaseSulfur fuel requirements < 30 l/cyl

  • Non-emergency > 500 HPMeet all from previous slide andPeriodic testingEvery three years or 8,760 hoursLimited use = Every five years or 8,760 hoursContinuous monitoringCPMSCEMS

  • Non-emergency > 300 HPInitial notification 8/31/10Performance test60 days prior to testCompliance StatusWithin 60 days after test

  • Non-emergency > 300 HPReportsSemiannualMalfunctions & deviationsEven if noneDue 30 days after calendar half or according to Title V scheduleAnnual if limited use

  • Non-emergency > 300 HPRecordsNotifications & reportsMalfunctionsTest dataCPMS & CEMS data (> 500 HP)

  • All Existing CI @ AreaStartup requirementsMinimize idle time to < 30 min.Compliance date 5/3/13

  • Existing SI @ Area8/20/10 rulesWork practiceEmergency (hour meter installed)Black StartNon-emergency4SLB & 4SRB > 500 HP operates < 24 hr/yr4SLB & 4SRB < 500 HP2SLBLandfill/digester gas

  • Work Practice Standards

  • Work Practice Standards

  • Work Practice Standards

  • Work Practice StandardsRecordsMalfunctionsMaintenanceEmergency hours of operation

    No reports or notifications required

  • 4SLB & 4SRB > 500 HP operates > 24 hr/yrNumerical standardsCO (4SLB) or Formaldehyde (4SRB) limitsMay need controls & operational parametersCPMS or CEMSInitial & periodic testingEvery three years or 8,760 hoursLimited use = Every five years or 8,760 hours

  • 4SLB & 4SRB > 500 HP operates > 24 hr/yrInitial notification 2/16/11Performance Test60 days prior to testCompliance StatusWithin 60 days of test

  • 4SLB & 4SRB > 500 HP operates > 24 hr/yrReportsSemiannualMalfunctions & deviationsEven if noneDue 30 days after calendar half or according to Title V scheduleAnnual if limited use

  • 4SLB & 4SRB > 500 HP operates > 24 hr/yrRecordsNotifications & reportsMalfunctionsTest dataCPMS & CEMS data

  • All Existing SI @ AreaAll have startup requirementsMinimize idle time to < 30 min.

    Compliance date 10/19/13

  • Major SourcesExisting CIExisting SI < 500 HPNew SI 4SLBOther > 500 HP

  • No RequirementsExisting @ majorLimited use & emergency > 500 HPSpark ignition 4SLB & 2SLB > 500 HPLandfill/Digester > 500 HPNew @ majorConstructed between 6/12/06 1/1/08 spark ignition 4SLB > 250 HP < 500 HP

  • No NESHAP Requirements May Be Subject to NSPSNew sources @ major source < 500 HPEmergency and limited useNon-emergency compression ignitionSpark ignition 4SLB < 250 HPSpark ignition 2SLB & 4SRBLandfill/digester

  • Limited NESHAP Requirements May Be Subject to NSPS (@ major)Initial notification onlyNew emergency and limited use > 500 HPMonitoring & recordkeepingNew landfill/digester > 500 HPHour meter installedNew, emergency manufactured after 1/1/08 spark ignition 4SLB > 250 < 500 HP

  • Existing CI @ Major3/3/10 rulesWork practiceEmergency (hour meter) < 500 HPBlack start < 500 HPNon-emergency < 100 HPNumerical standardsNon-emergency > 100 HP

  • Work Practice Standards

  • Work Practice StandardsRecordsMalfunctionsMaintenanceEmergency hours of operation

    No reports or notifications required

  • Non-emergency >100 HPCO limitsInitial testing> 300 HPClosed crankcaseFuel requirements < 30 l/cyl

  • Non-emergency > 500 HPM

Recommended

View more >