DEMONSTRATIONS: AN UPDATE NOVEMBER 12, 2013 PRESENTATION D E N N I - - PowerPoint PPT Presentation

▶
demonstrations an update
SMART_READER_LITE
LIVE PREVIEW

DEMONSTRATIONS: AN UPDATE NOVEMBER 12, 2013 PRESENTATION D E N N I - - PowerPoint PPT Presentation

Dec 13, 2022 111 likes •334 views

EQUIVALENT OR BETTER DISPERSION DEMONSTRATIONS: AN UPDATE NOVEMBER 12, 2013 PRESENTATION D E N N I S B E C K E R , M P C A / E A O D / R E A M EQUIVALENT OR BETTER DISPERSION What is is Equiv uivalen alent t or r Bett etter er Disp

slide-1
SLIDE 1

EQUIVALENT OR BETTER DISPERSION DEMONSTRATIONS: AN UPDATE NOVEMBER 12, 2013 PRESENTATION

D E N N I S B E C K E R , M P C A / E A O D / R E A M

slide-2
SLIDE 2

EQUIVALENT OR BETTER DISPERSION

  • What is

is Equiv uivalen alent t or r Bett etter er Disp ispersion ersion (E (EBD)? )?

  • Why do I ne

need to do this?

  • How to co

cond nduct uct the EBD Demo monstration nstration

  • Adm

dminis inistra trativ tive e Proce rocess ss for r EBD mo model eling ng

2

slide-3
SLIDE 3

EQUIVALENT OR BETTER DISPERSION

  • What is

is Equiv uivalen alent t or r Bett etter er Disp ispersion ersion (E (EBD)? )? Hint:

: same e or lower r disper persi sion

  • n imp

mpacts cts

  • Why do I ne

need to do this? ? Hint:

t: permit mit requi uire reme ment nt

  • How to co

cond nduct uct the EBD Demo monstration nstration

Hint: t: strong

  • ngly

ly resem embles bles conce cepts ts of PSD increme rement nt mode deling ing

  • Adm

dminis inistrativ trative e Proc Process ss for r EBD mo model eling ing

Hint: t: working ng practice ce memo emo and forms rms (almost most done ne)

3

slide-4
SLIDE 4

EQUIVALENT OR BETTER DISPERSION

  • Wh

What at ar are ou e our Goa

  • als

ls:

  • Goa
  • al

l #1: : promo

  • mote

e wise se growth wth while

e improving ving air qualit ality

  • Goa
  • al

l #2: : avoid id fut uture ure no non-attainme attainment nt if possible

ble

  • Goa
  • al

l #3: : gre reat ater er re regulat ulator

  • ry

y ce certainty nty with less work

  • Goa
  • al

l #4: : gre reat ater er bu business iness ce certainty ainty with less work

  • Goa
  • al

l #5: : clear “bright line” test keep it simple

le

4

slide-5
SLIDE 5

EQUIVALENT OR BETTER DISPERSION

  • Wh

What at ar are ou e our Int nten entio tions ns:

  • Intended for improvements, or…
  • Inf

nfinit initesim esimal al deg egra radations. dations.

  • Not

Not in intended ended to ful ully ly re repla lace ce re re-mode modeling ling!

5

slide-6
SLIDE 6

EQUIVALENT OR BETTER DISPERSION

  • Wh

What at ar are ou e our Def efin init itio ions ns:

  • “Equivalent” me

means ns “same me impact”

  • Mathemat

ematical ically: ly: net net ch chan ange ge = zer ero

  • Bright

ght Line Test: : 0.00 00 ug ug/m3 m3

  • Two deci

cimal mal pla laces ces (t (tent ntativ ative) e)

6

slide-7
SLIDE 7

EQUIVALENT OR BETTER DISPERSION

  • Wh

What at ar are ou e our Def efin init itio ions ns:

  • “Better” me

means ns “lo lower er impacts”

  • Mathemat

ematical ically: ly: net net ch chan ange ge < zer ero

  • Bright

ght Line Test: : ne negativ gative e ch chang nges es

  • AERMOD

RMOD No Notes: es: AERM RMOD OD does es not not cu curr rrently ently displa splay y ne negativ tive e ch chang nges es

7

slide-8
SLIDE 8

HOW TO CONDUCT THE ANALYSIS - OVERVIEW

Overvie view

  • Think

nk PSD-increme rement nt modeling ng concept pts s (witho thout ut baseli line ne dates) es)

  • Think negative emission rates for “before case”
  • Think positive emission rates for “after case”

Set et-up up for the Model del

  • Ideally

ly – same met eteorolo logical l data as used d in latest st full l refine ned d modeli ling ng

  • Ideally - same receptor
  • r grid
  • Ideally – same building

dings s (unless ss those se are part t of the propose posed d change)

  • Best

t of all - no background

  • und or nearby source

ces s are required! quired!

8

slide-9
SLIDE 9

HOW TO CONDUCT THE ANALYSIS - EXAMPLE

Facility lity ABC has three ee stacks cks undergoing rgoing changes es:

  • ABCSV001
  • ABCSV002
  • ABCSV003

9

slide-10
SLIDE 10

HOW TO CONDUCT THE ANALYSIS - EXAMPLE

ABCSV00 001_ 1_OL OLD D with th old (negati tive) emiss ssion

  • n rate
  • Old Inputs

ABCSV002_ 002_OL OLD D with th old (negati tive) emiss ssion

  • n rate
  • Old Inputs

ABCSV003_ 003_OL OLD D with th old (negati tive) emiss ssion

  • n rate
  • Old Inputs

ABCSV00 001_ 1_NEW NEW with th new (posi sitive) ) emiss ssion n rate

  • New Inputs

ABCSV002_ 002_NEW NEW with th new (posi sitive) ) emiss ssion n rate

  • New Inputs

ABCSV003_ 003_NEW NEW with th new (posi sitive) ) emiss ssion n rate

  • New Inputs

10

slide-11
SLIDE 11

HOW TO CONDUCT THE ANALYSIS - EXAMPLE

ABCSV0 V001_ 1_OLD LD with old (negati ative) e) emissi sion

  • n rate
  • Old Inputs: LOCATION, SRCPARAM, and if applicable:
  • BUILDHGT, BUILDWID, BUILDLEN, XBADJ, YBADJ
  • EMISFACT (or HOUREMIS)
  • NOX TIER 1 only

ABCSV0 V002 02_OL OLD D with old (nega gative) e) emission

  • n rate
  • Old Inputs

ABCSV0 V003 03_OL OLD D with old (negativ ive) e) emission ion rate

  • Old Inputs

ABCSV0 V001_ 1_NEW W with new (pos positive) e) emission

  • n rate
  • New Inputs

ABCSV0 V002 02_NEW W with new (posi

  • sitive)

e) emission n rate

  • New Inputs

ABCSV0 V003 03_NEW W with new (posi

  • sitive)

e) emission n rate

  • New Inputs

Note: Use AERMOD SRCGR GROU OUP P ALL and applicable regulatory metrics (e.g., NAAQS)

11

slide-12
SLIDE 12

HOW TO CONDUCT THE ANALYSIS - EXAMPLE

Possi sible le Outco come me1: : SRCGR GROUP UP AL ALL L (net t change nge) ) = 0.00 0 ug ug/m3 m3

  • Prepare submittal (forms, files);
  • Su

Submit mit to: : airmod

  • deli

eling. ng.pca@ ca@sta tate.mn e.mn.u .us

  • Also submit with permit application???

Possible ssible Outcome2: come2: SRCGR GROUP UP ALL L (net t change ge) ) > 0.00 0 ug ug/m3 m3

  • Prepare submittal (forms, files); expect delays!!!
  • Su

Submit mit to: : airmod

  • deli

eling. ng.pca@ ca@sta tate.mn e.mn.u .us

  • Possible options:
  • Try again w/more improvements, or
  • Conduct full NAAQS re-modeling, or
  • MPCA management will decide next steps

12

slide-13
SLIDE 13

CUMULATIVE ANALYSES SINCE LAST NAAQS RUN

EBD D analyses yses are cumulativ lative (goo

  • od

d thing ng)

  • EBD1

D1 has a l large rge decrease ease (-5 5 ug ug/m3)* /m3)*

  • CUMULA

ULATIVE TIVE NET T CHANG NGE E (-5 5 ug ug/m3)* m3)*

  • EBD2

D2 has a s small all increase rease (+1 ug ug/m3) m3)

  • CUMULA

ULATIVE TIVE NET T CHANG NGE E (-4 4 ug ug/m3)* m3)*

  • EBD3

D3 has a s small all increase rease (+2 ug ug/m3) m3)

  • CUMULA

ULATIVE TIVE NET T CHANG NGE E (-2 2 ug ug/m3 m3)* )*

  • *AERM

RMOD OD displa plays ys negati ative impacts acts as zero

  • 13
slide-14
SLIDE 14
  • 5

1 2

  • 5
  • 4
  • 2
  • 6
  • 5
  • 4
  • 3
  • 2
  • 1

1 2 3 EBD1 EBD2 EBD3

Figure e of Previous

  • us Slide

Change Cumulative

14

slide-15
SLIDE 15

CUMULATIVE ANALYSES SINCE LAST NAAQS RUN

EBD an anal alyses ses ar are e cu cumul mulativ ative (g (good d thin ing)

  • EB

EBD1 has a l large e decre rease se (-5 5 ug ug/m3) 3)

  • CUMULA

ULATIVE TIVE NET ET CHAN ANGE GE (-5 5 ug ug/m3 m3)

  • EB

EBD2 has s a l larger er increa rease e (+6 ug ug/m3) m3)

  • CUMULA

ULATIVE TIVE NET ET CHAN ANGE GE (+1 1 ug ug/m3 m3)

  • Ful

ull NAA AAQS QS remo modeli deling ng is now w requi uired red.

15

slide-16
SLIDE 16
  • 5

6

  • 5

1

  • 6
  • 4
  • 2

2 4 6 8 EBD1 EBD2

Figure e of Previous

  • us Slide

Change Cumulative

16

slide-17
SLIDE 17

ADMINISTRATIVE PROCESS

  • Ne

Need ed a a Pr Proposal posal (N (New w form m on th the e Mo Modeling deling Websit bsite e Soon)

  • n)
  • Final

al Repor port t Form rm Soon

  • n
  • Subm

bmit t Fina nal l Repor port t Approval al wi with th Permit mit Appl plication ication

17

slide-18
SLIDE 18

CONCLUSIONS

Benef efit its

  • Refined

ined analy lysis sis that prese sents ts a defen endab dable le demon emonstr tratio ion

  • It is “model version” neutral
  • Most

st of the inputs s alread ady exist ist

  • Resem

sembles les well ll-known PSD mode deling ing conce

  • ncepts

ts Risks sks/Do /Downside sides

  • May take

e more time e in com

  • mpar

arison ison to former mer scree eening approa

  • aches

hes (e.g., ., SCRE REEN3 EN3)

  • May find

d that a refined ined re-mo modelin eling is still l req equir ired d as a res esult lt of the EBD analy lysis sis Final al Not

  • te
  • This approac

ach is not

  • t yet

et in the Guidan dance e – but will ll be!

  • A “Working Memorandum” on this topic will be posted to our website in the interim

18

slide-19
SLIDE 19

BEST CONTACTS – DICK, JIM & MELISSA

When n to Model l (MPCA A Permit Section

  • n)
  • Dick Cordes

How to Model l (MPCA PCA Modeli ling ng Un Unit)

  • Jim Sulli

livan

  • Meliss

ssa a Sheffer er

  • Ruth Roberson

son (TEMPO36 MPO360 0 Transf nsfor

  • rma

mation

  • n Project

ct until l mid-2015) 5)

  • Denni

nis Becker er (prob

  • bable

le ret etireme ment nt in summer mer or fall 2014) 4) Forms (MPC PCA A Modeli ling ng Un Unit)

  • Meliss

ssa a Sheffer er

19

slide-20
SLIDE 20

QUESTIONS?

Ask now or duri ring ng the break.

20