AQ_F_0800107_20160108_CMPL_CompRpt

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312 S.Front St.Ste 6
New Bern,NC 28562 LLONS
Group
360.750.3583
Energy Solutions +group F:360.750.3483
January 8,2016
Mr.Frankie Fox
VP Operations
Wellons Energy Solutions
232 Perdue Rd.
Cofield,NC 27922
Mr. Fox;
As required under the Air Permit No. 101.26R01 for the W.E.Partners 11,LLC facility located at Lewiston,
NC,Wellons Inc.conducted boiler tuning on the boilers at the site. As you are aware,the facility has three
(3)600 HP biomass boilers installed at the facility.
I conducted various trials with the boilers to minimize boiler emissions while maximizing the efficiency of
the combustion process. While the permit language requiring a boiler tune-up is more directed toward a
fossil fuel boiler,the summary of the requirements are outlined below.
i. Boiler Tune-up (40 CFR 63.11223) —An initial boiler tune-up is required upon
startup of the source. A biennial tune-up is also required and shall be conducted
no more than 25 months after the previous tune-up. If the unit is not operating on
the required date for a tune-up,the tune-up must be conducted within one week of
startup.The tune-up shall include the following:
A. As applicable,inspect the burner,and clean or replace any components of
the burner as necessary (the Permittee may delay the burner inspection
until the next scheduled unit shutdown, but must inspect each burner at
least once every 36 months).
B. Inspect the flame pattern,as applicable,and adjust the burner as necessary
to optimize the flame pattern. The adjustment should be consistent with
the manufacturer's specifications, if available.
C. Inspect the system controlling the air-to-fuel ratio, as applicable, and
ensure that it is correctly calibrated and functioning properly.
D. Optimize total emissions of carbon monoxide. This optimization should
be consistent with the manufacturer's specifications,if available.
E. Measure the concentrations in the effluent stream of carbon monoxide in
parts per million, by volume, and oxygen in volume percent, before and
after the adjustments are made(measurements may be either on a dry or
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wet basis, as long as it is the same basis before and after the adjustments
are made).
F. Maintain onsite a biennial report (in addition to the annual report
requirements of item f.iv. below)containing:
I. The concentrations of CO in the effluent stream in parts per
million, by volume, and oxygen in volume percent, measured
before and after the tune-up of the boiler.
II. A description of any corrective actions taken as a part of the tune-
up of the boiler.
III_ The type and amount of fuel used over the 12 months prior to the
biennial tune-up of the boiler.
During the tune-up and commissioning process,several runs of test data were taken to determine the current
emissions profile as well as to develop a plan to minimize emissions by adjusting the air/fuel ratios. An
inspection of the boiler grate was completed and no issues were noted with the grate, furnace and fuel
delivery mechanisms.
Data documenting the 02 and CO emissions were taken before,during and after completion of the tuning
exercise. Please see attachment which documents the emissions profile.
As required by the Air Permit,this tune-up will need to be repeated biannually going forward.Therefore,
we will need to schedule another tune-up to be completed prior to February,2018.
Sincerelly;
Sincerely;
B.Cottrell
President
Wellons Energy Solutions LLC
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Summary of Tuning Data
Tuning irialson"A"Boller,Lewiston,NC Tuning Trals onBoiler,tewistnn,NC Tuning Trials M1"C"BWier,Lewlstws,NC
8-18n-16 Usmg recipe caffcd Green Euel 8-Jan-16 Using reuoe caRed Green fuel &Jan-16 Usir:g rec,pe oiled Glees Nel
Trial M30 Triall Change: Ba:etrne first Run Trial Change: AaseLne run
COrnm@nts: Comments Cornments: Very Good results
142 TYint I.OMl41>•,.:_ W, Tsim '14"its `ti.- 4Cf- 2iHrk,. Ril:slta
Nong Rase 67OIA 20.9 0 CO! 92% Frnog Pare 7C.0% 32.S 0 Co' 10.6E Firing Rate TO% 32.8 0 CO: 11.2%
MetedngscresvAirvalva 90.0% Extess A& 76% Metenngwew Afrvalve 100.0% Excess Air 54% MeteMgstli-A-Swe 7o00% Excess Air 43Y+
Toq Ov@rfirelmanusl} 23.2% CO 505 Top Oeerfire(maoual) 3810% C0 320 Top Lweritr4 imafwaf) 40.0% CO 260
Overtire 33.3% -5 Oa 9.49% Overlrfe 43.0% 0 01 7.80% Overfue 43.0% 0 0, 6.50%
Untlerf ere 33.3% 4 U"OeIR" 33.5% 0 Undersire 3117% 0 6.4
02 computer 8.0% 02cwnqutes 7.0% 02compu10r 5.9%
10 setting -0.3 IO setting .0.5 IDsetling -Q.6
Trial 9toiskm Redtxedovet-flreliw TrUl2 ILIUM Reduced Over-fire Trial w5phl No changes
Comments; GBed Rtsulis CCmments: 50mtlmpfeV@m@M Comments:
'% VIF Ti.ru llxs ' fR idin, YWavutS- '. N7 Trim 1 %tt�Std'.5
Finrtt Rate. 62.D% 28.6 a CO, 5.4% rineglkate 68.0% all; 0 Co: 10.A hring Rate 70.0% 32.5 0 Co: 10.5%
Metering spew All vatvt 90.0% Exess Air 64`% MeterinSScrewAnvaW ICe 300.0% EXSAir 45% rltenrgulew Air valve 1%,0`ti ExossAir At%
Top Ovedfre(manueli 23.2% CO 320 Top Ovtrfire(mansal} 38.C% CO 2!i0 lop Orertire imanu0tj 40.0% CO 166
Ovtrhre 30.0% 0, 9401� OveAire 39.05E 0 O; 630% Owl- 43.0% 0 Os 6.30%
UnderFire 30.0% 0 unciet;ire 32.0% 0 Urdersue 33.6% 0
02wmputef 7.5% 02 computer co% O2computer 6.D%
t0 stttling IOsettmg fi.5 10 xtunE 46
trial3 9:35AM Reduced 0v9111l again tria11 11155 AM Reduced oveeme,r1so-0e,fo. Trial CA4n4e;.35
Co:ninents: Afar the third adiustment,pos:tive results Cemrnentl: Accepted C-mews:
Fuel pile is stable and WrlbMioo lacks good
;k N% 7c3rn Rewirt, % HI krim R&s;rll. % fu Tvish Rv?'ulTS
siring Rate 60.Oh 28.6 0 C.O: 9.8" FmrRRate MCI. 32.3 0 CO; 20.38 Fuingw:e 70.0% 32S 0 CO: 10.45%
Metering screw Ax wNe 90.0% E.xeess Arc 55% 44teung scree;Air vA- 200.0% Euliss Air 45`i Me:efiq screw Air valve 100.0% EttlSSAu 44%
Top Omlire(MAnual) 2210% ".C'� 250 -op Overinel manual! 38.0% CO 250 Top Oveefire(msnual} 40.0% CO 175
Overffre no% - O; 7.7^% 'rued'.. 39.04 0 O; 6.30'i 0-fte 43.0% 0 Or 6.40`>
unde%Fim 29.0%% 0 i3Oe(Fire 32.0% 0 Undercire 31.6% 0
02 computer 7.5% 0'.conputer 6,0% 02 mroputvc 6.0%
lOsell"l; ID cert+ng O.5 IOsetting -0.6
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