Transcript AQA FXS GAS ANALYZING SYSTEM - Gasmet-USA

How
FTIR works
FTIR spectrometer
Sample
cell
infrared source
continuous
infrared spectrum
interferometer
interferometer
moduled
infrared spectrum
detector
cuvette
sample
cell
transmitted
infrared light
external
eductor
detector
meas.
signal
Fourier
analysis
absorption
spectrum
results
CALCMET™
software
external computer
data storage
Electronics / µC
measuring value
displays
How
FTIR works
interferogramm
measuring ...
zero gas measured
transmission spectrum
standardized spectrum
background spectrum
absorbance spectrum
FFT
digital library
reference spectra
 identical spectrum
 f1
 f2
+
 f3
factors
ref. values
x
measuring values
m1, m2, m3, ...
GASMET CEMS
APPLICATIONS
Gasmet CEMS and reference measurements:
SO2 measurement
400.0
350.0
UV-fluorescence
FT-IR
300.0
250.0
200.0
Time
7:18
6:46
6:14
5:42
5:10
4:38
4:06
3:34
3:02
2:30
1:58
1:26
0:54
0:22
23:50
23:18
22:46
22:14
21:42
21:10
20:38
20:06
19:34
19:02
18:30
17:58
150.0
17:26
Concentration (mg/Nm3)
BFB boiler: wood, peat, bark, sludge
GASMET CEMS
APPLICATIONS
NOx measurement
BFB boiler: wood, peat, bark, sludge
400.0
Chemiluminescence
FT-IR
350.0
300.0
250.0
Time
12:48
12:35
12:22
12:09
11:56
11:43
11:30
11:17
11:04
10:51
10:38
10:25
10:12
9:59
9:46
9:33
9:20
9:07
8:54
8:41
8:28
8:15
200.0
7:51
Concentration
(mgNO2/Nm3)
450.0
Austin Energy Sandhill Unit #1 Demonstration
Results
Figure 3: Compliance and FTIR CEMs NOx Trend
25.00
CEM NOx
FTIR
NOx
9.25
1.19
35.65
5.89
FTIR
Dev
-0.29
-9.45
10.78
3.61
0.82
FTIR NOx
20.00
15.00
PPM NOx
Average
Min
Max
Std Dev
CI
CEM
NOx
9.38
1.70
24.87
5.21
10.00
5.00
0.00
0
10
20
30
40
Unit Run Sequence
50
60
GASMET CEMS
APPLICATIONS
Gasmet CEMS and reference measurements:
CO measurement
3000.0
2500.0
2000.0
NDIR
FT-IR
1500.0
1000.0
500.0
Time
12:51
12:40
12:29
12:18
12:07
11:56
11:45
11:34
11:23
11:09
10:58
10:47
10:36
10:25
10:14
10:03
9:52
9:41
9:30
9:19
9:08
8:57
8:46
8:35
8:24
8:13
0.0
7:51
Concentration (mg/Nm3)
BFB boiler: wood, peat, bark, sludge