AQ_F_2100073_20211208_ST_RvwMemo_2021-240st

DIVISION OF AIR QUALITY
December 8, 2021
MEMORANDUM
To: Betsy Huddleston,Washington Regional Office Supervisor
From: Brent W. Hall, Stationary Source Compliance Branch(SSCB)53WX
Subject: Regulator Marine,Inc.
Edenton, Chowan County,North Carolina
Facility ID 21-00073,Air Permit No. 07132T13
Carbon Monoxide Emissions Testing of Diesel-Fired Peak Shaving Generator ES-14
By Integrity Air Monitoring, Inc. on October 19,2021
DAQ Tracking No. 2021-240ST
Integrity Air Monitoring,Inc. (Integrity)performed EPA Method 10 for carbon monoxide(CO) emissions
from reciprocating internal combustion engine (RICE)ES-14. The emissions test results demonstrate
compliance with the applicable regulations as discussed below.
ES-14 is a diesel-fired peak shaving generator controlled by diesel oxidation catalyst CD-I4. The
generator is rated at 764 horsepower(569 kilowatts)maximum capacity. 40 CFR 63 Subpart ZZZZ
National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal
Combustion Engines applies and specifies CO emissions shall be reduced by 70%or more using an
oxidation catalyst or no more than 23parts per million by volume corrected to 15%oxygen
(ppmvd@15%02). Permit condition 2.1.C.3 states the temperature of the catalyst inlet should be
maintained at>450 OF and<1350 OF. The pressure drop across the catalyst should be maintained±10%
from the pressure drop that was measured during the most recent performance test. Sampling was
performed at the inlet and outlet of the catalyst. The emissions test results reported in units of parts per
million by volume corrected to 15%oxygen(ppmvd@15%02)are shown below.
Source CO mvd 15%02 Reduction Efficiency Regulation Compliance
Inlet Outlet Result Re uired 63 Subpart
ES-I4 36.6 0.856 97.7% >70% ZZZZ Yes
The average temperature during testing was 754 OF and the average differential pressure across the
catalyst was 7.92 in. H2O. The engine is rated at 569 kW but the unit averaged 269 kW during testing.
The emissions test results are acceptable for the 269 kW load. However,if the engine is operated at loads
above 269 kW,additional testing may be required to demonstrate compliance. If there are any questions
regarding this review,please contact me at(919) 707-8427 or Brent.Hallgncdenr.gov..
Cc: IBEAM Documents-2100073