### 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 namevalue sppn = speciation lbhr_gs7.936648 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

task**facility fac**  **units ctrl**  **EPA ctrl**  **controls applied Source**  **No. CA** **LPUFF input file SRCN**  **AM** 7TEP Sundt Sundt u1-4 bsenewBase Case (none) 1 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_1 7TEP Sundt Sundt u1-4 bsenewBase Case (none) 2 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_2 7TEP Sundt Sundt u1-4 bsenewBase Case (none) 3 irv_az_unit1-4_bsenew_2001.emis.pm10spec irv_3 7TEP Sundt Sundt u1-4 bsenewBase 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.inp irv_1 TEP Sundt Sundt u1-4 ctrl2xa 2 cf_Sundt_ctrl2xa_2001.inp irv_2 TEP Sundt Sundt u1-4 ctrl2xa 3 cf_Sundt_ctrl2xa_2001.inp irv_3 TEP Sundt Sundt u1-4 ctrl2xac2xa DFGD 4 cf_Sundt_ctrl2xa_2001.inp irv_4 TEP Sundt Sundt u1-4 ctrl2xb 1 cf_Sundt_ctrl2xb_2001.inp irv_1 TEP Sundt Sundt u1-4 ctrl2xb 2 cf_Sundt_ctrl2xb_2001.inp irv_2 TEP Sundt Sundt u1-4 ctrl2xb 3 cf_Sundt_ctrl2xb_2001.inp irv_3 TEP Sundt Sundt u1-4 ctrl2xbc2xb DFGD FF sppn 4 cf_Sundt_ctrl2xb_2001.inp irv_4 TEP Sundt Sundt u1-4 ctrl2xc 1 cf_Sundt_ctrl2xc_2001.inp irv_1 TEP Sundt Sundt u1-4 ctrl2xc 2 cf_Sundt_ctrl2xc_2001.inp irv_2 TEP Sundt Sundt u1-4 ctrl2xc 3 cf_Sundt_ctrl2xc_2001.inp irv_3 TEP Sundt Sundt u1-4 ctrl2xcc2xc DFGD FF sppn, bstack4 cf_Sundt_ctrl2xc_2001.inp irv_4 TEP Sundt Sundt u1-4 ctrl2xd 1 cf_Sundt_ctrl2xd_2001.inp irv_1 TEP Sundt Sundt u1-4 ctrl2xd 2 cf_Sundt_ctrl2xd_2001.inp irv_2 TEP Sundt Sundt u1-4 ctrl2xd 3 cf_Sundt_ctrl2xd_2001.inp irv_3 TEP Sundt Sundt u1-4 ctrl2xdc2xd DFGD bstack 4 cf_Sundt_ctrl2xd_2001.inp irv_4
**SO2 sppn**  **stack parms EPA**  **ctrl short desc.**  **comparisons to make** base FF base base base DFGD FF_FGDlower 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, or cf. base for effect of DFGD SO2 only DFGD FF_FGDbase c2xd DFGD bstack cf. 2xc for effect of speciation, or cf. 2xa for effect of stack parameter changesSundt c2 experiment - CALPUFF point source input parameters - extracted from CALPUFF.inp 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

cf. base for overall benefit; replicates ctrl2 cf. 2xa for effect of speciation cf. 2xb for effect of stack parameter changes, or cf. base for effect of DFGD SO2 only cf. 2xc for effect of speciation, or cf. 2xa for effect of stack parameter changesEnglish -->**% 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%**% change 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 0.139TEP 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 AreaControl Scenario fac scen vmeth areayear filegroup 8th 2001 TEP Sundt Galiuro base sundt base vm8b gali mult ct_sundt_base_vm8b_gali_2001.lst 0.939 TEP Sundt Galiuro DFGD sundt ctrl2xavm8b gali mult ct_sundt_ctrl2xa_vm8b_gali_2001.lst 0.889 TEP Sundt Galiuro DFGD FF sppn sundt ctrl2xbvm8b gali mult ct_sundt_ctrl2xb_vm8b_gali_2001.lst 0.875 TEP Sundt Galiuro DFGD FF sppn bparms sundt ctrl2xcvm8b gali mult ct_sundt_ctrl2xc_vm8b_gali_2001.lst 0.863 TEP Sundt Galiuro DFGD bstack sundt ctrl2xdvm8b gali mult ct_sundt_ctrl2xd_vm8b_gali_2001.lst 0.876 TEP Sundt Saguaro base sundt base vm8b sagumult ct_sundt_base_vm8b_sagu_2001.lst 3.370 TEP Sundt Saguaro DFGD sundt ctrl2xavm8b sagumult ct_sundt_ctrl2xa_vm8b_sagu_2001.lst 3.566 TEP Sundt Saguaro DFGD FF sppn sundt ctrl2xbvm8b sagumult ct_sundt_ctrl2xb_vm8b_sagu_2001.lst 3.510 TEP Sundt Saguaro DFGD FF sppn bparms sundt ctrl2xcvm8b sagumult ct_sundt_ctrl2xc_vm8b_sagu_2001.lst 3.300 TEP Sundt Saguaro DFGD bstack sundt ctrl2xdvm8b sagumult ct_sundt_ctrl2xd_vm8b_sagu_2001.lst 3.327 **Change relative to base case scen**  **SO2 sppn**  **stack parms Change (negative is benefit, positive is disbenefit)** 

(either) base base base FF base 2001 Galiuro DFGD ctrl2xa DFGDFF_FGDlower VS & TS -0.05 Galiuro DFGD FF sppn ctrl2xb DFGDFF lower VS & TS -0.06 Galiuro DFGD FF sppn bparms ctrl2xc DFGDFF base -0.08 Galiuro DFGD bparms ctrl2xd DFGDFF_FGDbase -0.06 Saguaro DFGD ctrl2xa DFGDFF_FGDlower VS & TS 0.20 Saguaro DFGD FF sppn ctrl2xb DFGDFF lower VS & TS 0.14 Saguaro DFGD FF sppn bparms ctrl2xc DFGDFF base -0.07 Saguaro DFGD bparms ctrl2xd DFGDFF_FGDbase -0.04 **Various effects** difference between runs initialfinal change = final minus initial2001

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 0.242002 2003'01-'03 '01-'03 2001 2002 2003'01-'03 2001 2002 2003'01-'03

ddv_p98ddv_p98avg merge n_ddv>0.5 n_ddv>0.5

n_ddv>0.5

sum n_ddv>1n_ddv>1n_ddv>1sum
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>12002

#days>12003

#days>1'01-'03

#days>1 1.0971.114 1.050 1.101 27 36 29 92 7 10 9 26 0.9381.046 0.958 0.940 22 25 23 70 7 6 8 21 0.9221.031 0.943 0.937 21 23 23 67 7 6 8 21 0.9020.989 0.918 0.955 21 25 24 70 6 6 7 19 0.9171.003 0.932 0.965 22 25 24 71 6 6 8 20 3.0393.462 3.290 3.371 150 178 144 472 94 112 88 294 3.4673.608 3.547 3.566 153 176 141 470 91 113 88 292 3.3143.573 3.466 3.510 151 174 139 464 88 113 86 287 2.9363.046 3.094 3.102 142 167 137 446 80 101 76 257 3.0213.164 3.171 3.164 143 169 141 453 85 101 80 266 **Change (negative is benefit, positive is disbenefit)** 20022003avg 8th22nd notes -0.16-0.07 -0.09 -0.16 -0.18-0.08 -0.11 -0.16a bit more benefit when keep FF speciation (but ~ no effect in 22nd) -0.20-0.13 -0.13 -0.15still more benefit when keep FF speciation and orig. stackparms -0.18-0.11 -0.12 -0.14between the preceeding: slight disbenefit from FF_FGD speciation 0.43 0.15 0.26 0.20Disbenefit of DFGD overall 0.28 0.11 0.18 0.1471% of disbenefit still there when only change stack parms -0.10-0.42 -0.20 -0.27SO2 reduction benefit when keep base PM and stack parms -0.02-0.30 -0.12 -0.21SO2 reduction benefit somewhat less with FF_FGD PM speciation 20022003avg 8th22nd notes -0.16-0.07 -0.09 -0.16small benefit of DFGD overall 0.02 0.02 0.02 0.00change to FGD_FF speciation has very slight disbenefit 0.02 0.04 0.02 -0.02change to lower VS&TS almost no effect (but benefit in 22nd) -0.20-0.13 -0.13 -0.15SO2 reduction benefit when keep base PM and stack parms 0.02 0.01 0.01 0.01change to FGD_FF speciation: very slight disbenefit 0.02 0.04 0.03 -0.03change 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 0.06change to FGD_FF speciation: slight disbenefit 0.45 0.44 0.38 0.40change to lower VS & TS: increases impacts a bunch!