TEP Sundt, CALPUFF modeling experiments with control 2, Dry FGD, July 2013

investigate FGD disbenefit at Saguaro sjb 2013-07-26, 2014-01-21

various combinations of emissions and stack parameters from UNC Task 7 modeling

results only for Galiuro Wilderness and Saguaro NP

Sheet Description

index (this sheet)

cpf_points CALPUFF point source parameters extracted from CALPUFF.INP files, and showing % change 

between scenarios

ddv_table_n822_Sundt_2x rough summary table of visibility impacts extracted from CALPOST.LST files, and impact changes 

due to speciation and stack parameter changes

some abbreviations name value

sppn = speciation lbhr_gs 7.936648

bstack or bparms = base case stack parameters ft_m 3.28084

FF = fabric filter / baghouse

DFGD = dry flue gas desulfurization

VS & TS = exit Velocity and Temperature of Stack (lowered for DFGD)

UNC Task 7 applied NPS speciation for PM from http://www.nature.nps.gov/air/Permits/ect/ectCoalFiredBoiler.cfm

spreadsheets for Pulverized Coal-Fired boilers, Dry Bottom with Fabric Filter alone or with FF and FGD

FF speciation http://www.nature.nps.gov/air/Permits/ect/docs/coalBoiler/2006FinalDryBottomPC_FFpmSpeciationProfile.xls

FF_FGD speciation http://www.nature.nps.gov/air/Permits/ect/docs/coalBoiler/2006FinalDryBottomPC_FGD_FFpmSpeciationProfile.xls

Conclusions: the overall disbenefit from DFGD SO2 control seen at Saguaro NP is mainly due to decreased stack exit velocity and 

temperature, 0.4 dv. It is also partly due to a change in PM speciation (increased SO4), less than 0.1 dv. It appears only at 

Saguaro likely because that is relatively nearby (17 km or 10 mi), so that the lower initial plume rise (from the lower velocity and 

temperature) increases ground level concentrations; farther away dispersion tends to even out the effect of different initial 

plume rises. These disbenefits outweigh the 0.3 dv benefit from DFGD SO2 reductions. The disbenefit effect is also seen at 

Galiuro (64 km or 40 mi away), but is so small that it does not remove the main SO2 reduction benefit. (For Galiuro, the stack 

parameter changes give a 0.02 dv disbenefit for the 3-year average of the 8th highs but give a 0.02 dv benefit for the 22nd high 

over three years.)
Sundt c2 experiment - CALPUFF point source input parameters - extracted from CALPUFF.inp files (2013-07-24)

Facility and control scenario Pn Stack parameters SRCNAM

taskfacility fac units ctrl

EPA 

ctrl controls applied

Source 

No. CALPUFF input file SRCN

AM

7 TEP Sundt Sundt u1-4 bsenew Base Case(none) 1 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_1

7 TEP Sundt Sundt u1-4 bsenew Base Case(none) 2 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_2

7 TEP Sundt Sundt u1-4 bsenew Base Case(none) 3 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_3

7 TEP Sundt Sundt u1-4 bsenew Base Case(LNB+OFA; FF) 4 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_4

TEP Sundt Sundt u1-4 ctrl2xa 1 cf_Sundt_ctrl2xa_2001.inpirv_1

TEP Sundt Sundt u1-4 ctrl2xa 2 cf_Sundt_ctrl2xa_2001.inpirv_2

TEP Sundt Sundt u1-4 ctrl2xa 3 cf_Sundt_ctrl2xa_2001.inpirv_3

TEP Sundt Sundt u1-4 ctrl2xa c2xa DFGD 4 cf_Sundt_ctrl2xa_2001.inpirv_4

TEP Sundt Sundt u1-4 ctrl2xb 1 cf_Sundt_ctrl2xb_2001.inpirv_1

TEP Sundt Sundt u1-4 ctrl2xb 2 cf_Sundt_ctrl2xb_2001.inpirv_2

TEP Sundt Sundt u1-4 ctrl2xb 3 cf_Sundt_ctrl2xb_2001.inpirv_3

TEP Sundt Sundt u1-4 ctrl2xb c2xb DFGD FF sppn 4 cf_Sundt_ctrl2xb_2001.inpirv_4

TEP Sundt Sundt u1-4 ctrl2xc 1 cf_Sundt_ctrl2xc_2001.inpirv_1

TEP Sundt Sundt u1-4 ctrl2xc 2 cf_Sundt_ctrl2xc_2001.inpirv_2

TEP Sundt Sundt u1-4 ctrl2xc 3 cf_Sundt_ctrl2xc_2001.inpirv_3

TEP Sundt Sundt u1-4 ctrl2xc c2xc DFGD FF sppn, bstack 4 cf_Sundt_ctrl2xc_2001.inpirv_4

TEP Sundt Sundt u1-4 ctrl2xd 1 cf_Sundt_ctrl2xd_2001.inpirv_1

TEP Sundt Sundt u1-4 ctrl2xd 2 cf_Sundt_ctrl2xd_2001.inpirv_2

TEP Sundt Sundt u1-4 ctrl2xd 3 cf_Sundt_ctrl2xd_2001.inpirv_3

TEP Sundt Sundt u1-4 ctrl2xd c2xd DFGD bstack 4 cf_Sundt_ctrl2xd_2001.inpirv_4

SO2 sppn stack parms

EPA 

ctrl short desc. comparisons to make

base FF base base base

DFGD FF_FGD lower VS & TS c2xa DFGD cf. base for overall benefit; replicates ctrl2

DFGD FF lower VS & TS c2xb DFGD FF sppn cf. 2xa for effect of speciation

DFGD FF base c2xc DFGD FF sppn, bstack cf. 2xb for effect of stack parameter changes, 

DFGD FF_FGD base c2xd DFGD bstack cf. 2xc for effect of speciation, or cf. 2xa for ef
files (2013-07-24)

x y HS z DS VS TS DW Emissions, g/s

X 

Coordinat

e (km)

Y 

Coordinat

e (km)

Stack 

Height 

(m)

Base 

Elevation 

(m)

Stack 

Diameter 

(m)

Exit Vel. 

(m/s)

Exit 

Temp. 

(deg. K)

Bldg. 

Dwas

h SO2 SO4

-1305.701 -768.586 39.62 794.92 3.21 8.84 399.67 0 0.222 0

-1305.701 -768.586 39.62 794.92 3.3 8.23 399.67 0 0.547 0

-1305.701 -768.586 43.89 794.92 3.75 8.84 391.89 0 0.328 0

-1305.701 -768.586 75.59 794.92 3.13 24.08 414.67 0 117.985 2.561

-1305.701 -768.586 39.62 794.92 3.21 8.84 399.67 0 0.222 0

-1305.701 -768.586 39.62 794.92 3.3 8.23 399.67 0 0.547 0

-1305.701 -768.586 43.89 794.92 3.75 8.84 391.89 0 0.328 0

-1305.701 -768.586 75.59 794.92 3.13 21.67 352.59 0 12.978 2.897

-1305.701 -768.586 39.62 794.92 3.21 8.84 399.67 0 0.222 0

-1305.701 -768.586 39.62 794.92 3.3 8.23 399.67 0 0.547 0

-1305.701 -768.586 43.89 794.92 3.75 8.84 391.89 0 0.328 0

-1305.701 -768.586 75.59 794.92 3.13 21.67 352.59 0 12.978 2.561

-1305.701 -768.586 39.62 794.92 3.21 8.84 399.67 0 0.222 0

-1305.701 -768.586 39.62 794.92 3.3 8.23 399.67 0 0.547 0

-1305.701 -768.586 43.89 794.92 3.75 8.84 391.89 0 0.328 0

-1305.701 -768.586 75.59 794.92 3.13 24.08 414.67 0 12.978 2.561

-1305.701 -768.586 39.62 794.92 3.21 8.84 399.67 0 0.222 0

-1305.701 -768.586 39.62 794.92 3.3 8.23 399.67 0 0.547 0

-1305.701 -768.586 43.89 794.92 3.75 8.84 391.89 0 0.328 0

-1305.701 -768.586 75.59 794.92 3.13 24.08 414.67 0 12.978 2.897

l benefit; replicates ctrl2

f speciation

f stack parameter changes, or cf. base for effect of DFGD SO2 only

f speciation, or cf. 2xa for effect of stack parameter changes
English -->

% change relative to base

NOX HNO3 NO3 PMF PMC EC SOA PM sum SO2 SO4

12.915 0 0 0 0 0 0 0

20.231 0 0 0 0 0 0 0

18.61 0 0 0 0 0 0 0

70.364 0 0 0.97 1.007 0.0365 0.642 5.2165

12.915 0 0 0 0 0 0 0 - -

20.231 0 0 0 0 0 0 0 - -

18.61 0 0 0 0 0 0 0 - -

70.364 0 0 0.768 0.797 0.0295 0.724 5.2155 -89.0% 13.1%

12.915 0 0 0 0 0 0 0 - -

20.231 0 0 0 0 0 0 0 - -

18.61 0 0 0 0 0 0 0 - -

70.364 0 0 0.97 1.007 0.0365 0.642 5.2165 -89.0% -

12.915 0 0 0 0 0 0 0 - -

20.231 0 0 0 0 0 0 0 - -

18.61 0 0 0 0 0 0 0 - -

70.364 0 0 0.97 1.007 0.0365 0.642 5.2165 -89.0% -

12.915 0 0 0 0 0 0 0 - -

20.231 0 0 0 0 0 0 0 - -

18.61 0 0 0 0 0 0 0 - -

70.364 0 0 0.768 0.797 0.0295 0.724 5.2155 -89.0% 13.1%
relative to base PM speciation

NOX HNO3 NO3 PMF PMC EC SOA PM sum VS TS SO4

-

-

-

0.491

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - -20.8% -20.9% -19.2% 12.8% -0.02% -10.0% -15.0% 0.555

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - -10.0% -15.0% 0.491

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - 0.491

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - -20.8% -20.9% -19.2% 12.8% 0.0% - - 0.555
PM speciation

PMF PMC EC SOA

- - - -

- - - -

- - - -

0.186 0.193 0.007 0.123

- - - -

- - - -

- - - -

0.147 0.153 0.006 0.139

- - - -

- - - -

- - - -

0.186 0.193 0.007 0.123

- - - -

- - - -

- - - -

0.186 0.193 0.007 0.123

- - - -

- - - -

- - - -

0.147 0.153 0.006 0.139
TEP Sundt, ctrl2 experiments for headings--> 2001

 from ddv_table_n822_Sundt_2x.csv and ...rebase-c12.csv fac scen mvsbg area year filegroup ddv_p98

Facility Class I Area Control Scenario fac scen vmeth area year filegroup

8th 

2001

TEP Sundt Galiuro base sundt base vm8b gali mult ct_sundt_base_vm8b_gali_20

0.939

TEP Sundt Galiuro DFGD sundt ctrl2xa vm8b gali mult ct_sundt_ctrl2xa_vm8b_gali_20.889

TEP Sundt Galiuro DFGD FF sppn sundt ctrl2xb vm8b gali mult ct_sundt_ctrl2xb_vm8b_gali_20.875

TEP Sundt Galiuro DFGD FF sppn bparms sundt ctrl2xc vm8b gali mult ct_sundt_ctrl2xc_vm8b_gali_20.863

TEP Sundt Galiuro DFGD bstack sundt ctrl2xd vm8b gali mult ct_sundt_ctrl2xd_vm8b_gali_20.876

TEP Sundt Saguaro base sundt base vm8b sagu mult ct_sundt_base_vm8b_sagu_2

3.370

TEP Sundt Saguaro DFGD sundt ctrl2xa vm8b sagu mult ct_sundt_ctrl2xa_vm8b_sagu_3.566

TEP Sundt Saguaro DFGD FF sppn sundt ctrl2xb vm8b sagu mult ct_sundt_ctrl2xb_vm8b_sagu_3.510

TEP Sundt Saguaro DFGD FF sppn bparms sundt ctrl2xc vm8b sagu mult ct_sundt_ctrl2xc_vm8b_sagu_3.300

TEP Sundt Saguaro DFGD bstack sundt ctrl2xd vm8b sagu mult ct_sundt_ctrl2xd_vm8b_sagu_3.327

Change relative to base case scen SO2 sppn stack parms Change (negative i

(either) base base base FF base 2001

Galiuro DFGD ctrl2xa DFGD FF_FGD lower VS & TS -0.05

Galiuro DFGD FF sppn ctrl2xb DFGD FF lower VS & TS -0.06

Galiuro DFGD FF sppn bparms ctrl2xc DFGD FF base -0.08

Galiuro DFGD bparms ctrl2xd DFGD FF_FGD base -0.06

Saguaro DFGD ctrl2xa DFGD FF_FGD lower VS & TS 0.20

Saguaro DFGD FF sppn ctrl2xb DFGD FF lower VS & TS 0.14

Saguaro DFGD FF sppn bparms ctrl2xc DFGD FF base -0.07

Saguaro DFGD bparms ctrl2xd DFGD FF_FGD base -0.04

Various effects difference between runs initial final change = final minus initial 2001

Galiuro DFGD, FF_FGD sppn, VS&TS base xa xa - base -0.05

Galiuro speciation (@lower VS&TS) xb xa xa - xb 0.01

Galiuro stack parameters (@FF sppn) xc xb xb - xc 0.01

Galiuro SO2 reduction only base xc xc - base -0.08

Galiuro speciation (@base VS&TS) xc xd xd - xc 0.01

Galiuro stack parameters (@FF_FGD sppn) xd xa xa - xd 0.01

Saguaro DFGD (FF_FGD sppn, VS&TS) base xa xa - base 0.20

Saguaro speciation (@lower VS&TS) xb xa xa - xb 0.06

Saguaro stack parameters (@FF sppn) xc xb xb - xc 0.21

Saguaro SO2 reduction only base xc xc - base -0.07

Saguaro speciation (@base VS&TS) xc xd xd - xc 0.03

Saguaro stack parameters (@FF_FGD sppn) xd xa xa - xd 0.24
2002 2003 '01-'03 '01-'03 2001 2002 2003 '01-'03 2001 2002 2003 '01-'03

ddv_p98 ddv_p98 avg merge n_ddv>0.5n_ddv>0.5n_ddv>0.5sum n_ddv>1 n_ddv>1 n_ddv>1 sum

8th 

2002

8th 

2003

avg '01-

'03 8th

22nd '01-

'03

2001 

#days>0.

5

2002 

#days>0.

5

2003 

#days>0.

5

'01-'03 

#days>0.

5

2001 

#days>1

2002 

#days>1

2003 

#days>1

'01-'03 

#days>1

1.097 1.114 1.050 1.101 27 36 29 92 7 10 9 26

0.938 1.046 0.958 0.940 22 25 23 70 7 6 8 21

0.922 1.031 0.943 0.937 21 23 23 67 7 6 8 21

0.902 0.989 0.918 0.955 21 25 24 70 6 6 7 19

0.917 1.003 0.932 0.965 22 25 24 71 6 6 8 20

3.039 3.462 3.290 3.371 150 178 144 472 94 112 88 294

3.467 3.608 3.547 3.566 153 176 141 470 91 113 88 292

3.314 3.573 3.466 3.510 151 174 139 464 88 113 86 287

2.936 3.046 3.094 3.102 142 167 137 446 80 101 76 257

3.021 3.164 3.171 3.164 143 169 141 453 85 101 80 266

Change (negative is benefit, positive is disbenefit)

2002 2003 avg 8th 22nd notes

-0.16 -0.07 -0.09 -0.16

-0.18 -0.08 -0.11 -0.16 a bit more benefit when keep FF speciation (but ~ no effect in 22nd)

-0.20 -0.13 -0.13 -0.15 still more benefit when keep FF speciation and orig. stackparms

-0.18 -0.11 -0.12 -0.14 between the preceeding: slight disbenefit from FF_FGD speciation

0.43 0.15 0.26 0.20 Disbenefit of DFGD overall

0.28 0.11 0.18 0.14 71% of disbenefit still there when only change stack parms

-0.10 -0.42 -0.20 -0.27 SO2 reduction benefit when keep base PM and stack parms

-0.02 -0.30 -0.12 -0.21 SO2 reduction benefit somewhat less with FF_FGD PM speciation

2002 2003 avg 8th 22nd notes

-0.16 -0.07 -0.09 -0.16 small benefit of DFGD overall

0.02 0.02 0.02 0.00 change to FGD_FF speciation has very slight disbenefit

0.02 0.04 0.02 -0.02 change to lower VS&TS almost no effect (but benefit in 22nd)

-0.20 -0.13 -0.13 -0.15 SO2 reduction benefit when keep base PM and stack parms

0.02 0.01 0.01 0.01 change to FGD_FF speciation: very slight disbenefit

0.02 0.04 0.03 -0.03 change to lower VS & TS: slight increase (but benefit in 22nd)

0.43 0.15 0.26 0.20 disbenefit of DFGD overall

0.15 0.04 0.08 0.06 change to FGD_FF speciation: slight disbenefit

0.38 0.53 0.37 0.41 change to lower VS & TS: increases impacts a bunch!

-0.10 -0.42 -0.20 -0.27 SO2 reduction benefit when keep base PM and stack parms

0.09 0.12 0.08 0.06 change to FGD_FF speciation: slight disbenefit

0.45 0.44 0.38 0.40 change to lower VS & TS: increases impacts a bunch!