|
Fig.6.3.4.3 NOx emission rate for engine load (B ship 3rd voyage)
Nox vs. Engine Load (B ship 3rd voyage)
Fig.6.3.4.4 NOx emission rate for engine load (B ship 1st to 3rd voyage)
NOx vs. Engine Load (B ship 3rd voyage)
Table 6.3.4.1 Engine Performance data and NOx emission Calculation
(oxygen balance method)
| No. |
1st voyage |
| 1 |
2 |
3 |
4 |
5 |
| Measurement Data
and Time |
J.S.T. |
15-Feb-02 |
25-Feb-02 |
11-Mar-02 |
29-Mar-02 |
11-Apr-02 |
|
1000-1100 |
1500-1600 |
1900-2000 |
1700-1800 |
0100-0200 |
| Local |
15-Feb-02 |
25-Feb-02 |
11-Mar-02 |
29-Mar-02 |
10-Apr-02 |
| |
0900-1000 |
- |
1100-1200 |
1000-1100 |
0900-1000 |
| Total Output Power
(kW) |
12104 |
11914 |
9154 |
11943 |
11898 |
| Output ratio to
CMCR (%L) |
86.8 |
85.5 |
65.7 |
85.7 |
85.4 |
| Engine Speed (rpm) |
97.5 |
97.1 |
86.2 |
96.6 |
96.7 |
| FO Consumption
(L/h) |
2096 |
2112 |
1602 |
2282 |
2283 |
| FO Temperature
at Engine Inlet (degC) |
137.0 |
132.0 |
103.0 |
101.0 |
100.0 |
| FO Density @ 15degC
(kg/m3) |
985.6 |
978.1 |
978.1 |
978.1 |
962.4 |
| FO Density @ Engine
Inlet (kg/m3) |
913.6 |
909.1 |
926.2 |
927.4 |
912.3 |
| FO Mass Flow (kg/h)
Gfuel |
1915 |
1920 |
1484 |
2116 |
2083 |
| Barometric Pressure
(hPa) |
1021.0 |
1014.0 |
1011.0 |
1020.0 |
1009.0 |
| Ambient Temperature
(degC) |
37.0 |
38.0 |
27.0 |
30.0 |
43.0 |
| Relative Humidity
(%) |
38.9 |
38.9 |
41.4 |
50.0 |
39.3 |
| Scavenging Pressure
(MPa) |
0.150 |
0.150 |
0.090 |
0.150 |
0.150 |
| Scavenging Temperature
(degC) |
48.0 |
49.0 |
42.0 |
46.0 |
51.0 |
| Ref. Scav. Temperature
(degC) Tscref |
39.2 |
38.7 |
32.3 |
38.8 |
38.6 |
| Pcomp (MPa) |
9.10 |
9.30 |
- |
9.50 |
9.60 |
| Pmax (MPa) |
12.10 |
12.30 |
- |
12.40 |
12.50 |
| T/C Speed (rpm) |
11,200 |
11,350 |
9,500 |
11,250 |
11,550 |
| Exh Gas Temperature
(degC) |
T/C
Inlet |
383 |
382 |
356 |
373 |
388 |
T/C
Outlet |
270 |
271 |
277 |
261 |
271 |
| Bunkering |
Place |
Marugame |
Singapore |
Singapore |
Singapore |
Antwerp |
| Date |
04-Feb-02 |
19-Feb-02 |
19-Feb-02 |
19-Feb-02 |
21-Mar-02 |
Sample
Name |
F202002520 |
F202003160 |
F202003160 |
F202003160 |
F202005060 |
| NOx Concentration
(ppm) |
1,303 |
1,272 |
1,319 |
1,389 |
1,196 |
| O2 Concentration
(%) |
14.43 |
14.32 |
14.85 |
14.86 |
14.29 |
| Hydrogen content
in fuel oil (wt%) ALF |
10.27 |
10.93 |
10.93 |
10.93 |
11.53 |
| Carbon content
in fuel oil (wt%) BET |
86.54 |
85.10 |
85.10 |
85.10 |
85.81 |
| Sulphur content
in fuel oil (wt%) GAM |
2.60 |
3.50 |
3.50 |
3.50 |
2.20 |
| Nitrogen content
in fuel oil (Wt%) DEL |
0.22 |
0.36 |
0.36 |
0.36 |
0.30 |
| Oxygen content
in fuel oil (wt%) EPS |
0.10 |
0.17 |
0.17 |
0.17 |
0.15 |
| Vapor Pressure
of Suction Air (kPa) Pa |
6.27 |
6.62 |
3.56 |
4.24 |
8.64 |
| Abs. humidity of
Suction Air (g/kg air) Ha |
15.23 |
16.23 |
9.21 |
13.21 |
21.66 |
| Vapor Pressure
of Scav. Air (kPa) Psc |
11.16 |
11.74 |
8.20 |
10.09 |
12.96 |
| Abs. humidity of
Scav. Air (g/kg air) Hsc |
28.82 |
30.46 |
27.88 |
25.93 |
33.88 |
| Lower value of
absolute humidity (g/kg) |
15.23 |
16.23 |
9.21 |
13.21 |
21.66 |
| Factor_1 compl
for Oxygen Balance |
206205 |
204633 |
212207 |
212349 |
204204 |
| Factor_2 for Oxygen
Balance |
314.56 |
316.96 |
316.96 |
316.96 |
322.31 |
| Oxygen Content
in Wet Air (wt%) TAU |
22.80 |
22.78 |
22.94 |
22.85 |
22.66 |
| Wet Exhaust Gas
Flow (kg/h) Gexhw |
93973 |
93488 |
76989 |
11512 |
104296 |
| Humidity Correction
Factor KHDIES |
1.0664 |
1.0783 |
0.9613 |
1.0237 |
1.1705 |
| Corrected NOx concentration
(ppm) |
1390 |
1372 |
1268 |
1422 |
1400 |
| NOx mass flow Gas
mass (g/h) |
207226 |
203488 |
154922 |
251634 |
231711 |
| NOx emission rate
(g/kWh) |
17.12 |
17.22 |
16.92 |
21.07 |
19.47 |
|
Table 6.3.4.2 Engine Performance data and NOx emission Calculation
(oxygen balance method)
| No. |
2nd voyage |
| 1 |
2 |
3 |
4 |
- |
| Measurement Data
and Time |
J.S.T. |
03-May-02 |
13-Jun-02 |
13-Jul-02 |
26-Jul-02 |
- |
|
1300-1400 |
1500-1600 |
1500-1600 |
1400-1500 |
- |
| Local |
03-May-02 |
13-Jun-02 |
13-Jul-02 |
26-Jul-02 |
- |
| |
1400-1500 |
900-1000 |
900-1000 |
1300-1400 |
- |
| Total Output Power
(kW) |
11898 |
12095 |
11796 |
11613 |
- |
| Output ratio to
CMCR (%L) |
85.4 |
86.8 |
84.6 |
83.3 |
- |
| Engine Speed (rpm) |
96.2 |
96.4 |
96.4 |
96.9 |
- |
| FO Consumption
(L/h) |
2294 |
2268 |
2228 |
2195 |
- |
| FO Temperature
at Engine Inlet (degC) |
100.0 |
99.0 |
92.0 |
92.0 |
- |
| FO Density @ 15degC
(kg/m3) |
962.4 |
973.5 |
982.3 |
982.3 |
- |
| FO Density @ Engine
Inlet (kg/m3) |
912.3 |
923.9 |
936.9 |
936.9 |
- |
| FO Mass Flow (kg/h)
Gfuel |
2093 |
2095 |
2087 |
2057 |
- |
| Barometric Pressure
(hPa) |
1004.0 |
1003.0 |
1004.0 |
1000.0 |
- |
| Ambient Temperature
(degC) |
42.0 |
41.0 |
44.0 |
45.0 |
- |
| Relative Humidity
(%) |
42.2 |
37.7 |
33.3 |
30.9 |
- |
| Scavenging Pressure
(MPa) |
0.150 |
0.160 |
0.140 |
0.140 |
- |
| Scavenging Temperature
(degC) |
51.0 |
52.0 |
51.0 |
50.0 |
- |
| Ref. Scav. Temperature
(degC) Tscref |
38.6 |
39.2 |
28.4 |
37.9 |
- |
| Pcomp (MPa) |
9.60 |
9.80 |
9.10 |
8.90 |
- |
| Pmax (MPa) |
12.50 |
12.70 |
12.20 |
11.90 |
- |
| T/C Speed (rpm) |
11,550 |
11,650 |
11,250 |
11,250 |
- |
| Exh Gas Temperature
(degC) |
T/C
Inlet |
386 |
388 |
390 |
393 |
- |
T/C
Outlet |
272 |
269 |
282 |
285 |
- |
| Bunkering |
Place |
Antwerp |
Singapore |
Antwerp |
Antwerp |
- |
| Date |
21-Mar-02 |
02-Jun-02 |
03-Jul-02 |
03-Jul-02 |
- |
Sample
Name |
F202005060 |
F202007776 |
F202009951 |
F202003951 |
- |
| NOx Concentration
(ppm) |
1,242 |
1,299 |
1,384 |
1,289 |
- |
| O2 Concentration
(%) |
14.17 |
14.27 |
14.02 |
13.75 |
- |
| Hydrogen content
in fuel oil (wt%) ALF |
11.53 |
11.16 |
10.80 |
10.80 |
- |
| Carbon content
in fuel oil (wt%) BET |
85.81 |
85.14 |
86.70 |
86.70 |
- |
| Sulphur content
in fuel oil (wt%) GAM |
2.20 |
3.20 |
1.70 |
1.70 |
- |
| Nitrogen content
in fuel oil (wt%) DEL |
0.30 |
0.27 |
0.25 |
0.25 |
- |
| Oxygen content
in fuel oil (wt%) EPS |
0.15 |
0.23 |
0.55 |
0.55 |
- |
| Vapor Pressure
of Suction Air (kPa) Pa |
8.20 |
7.78 |
9.10 |
9.53 |
- |
| Abs. humidity of
Suction Air (g/kg air) Ha |
22.22 |
18.73 |
19.36 |
19.01 |
- |
| Vapor Pressure
of Scav. Air (kPa) Psc |
12.96 |
13.61 |
12.96 |
12.34 |
- |
| Abs. humidity of
Scav. Air (g/kg air) Hsc |
33.95 |
34.33 |
35.45 |
33.7 |
- |
| Lower value of
absolute humidity (g/kg) |
22.22 |
18.73 |
19.36 |
19.01 |
- |
| Factor_1 compl
for Oxygen Balance |
202489 |
203918 |
200346 |
196488 |
- |
| Factor_2 for Oxygen
Balance |
322.31 |
318.59 |
318.39 |
318.39 |
- |
| Oxygen Content
in Wet Air (wt%) TAU |
22.65 |
22.72 |
22.71 |
22.72 |
- |
| Wet Exhaust Gas
Flow (kg/h) Gexhw |
103000 |
102502 |
98253 |
92917 |
- |
| Humidity Correction
Factor KHDIES |
1.1760 |
1.1158 |
1.1364 |
1.1354 |
- |
| Corrected NOx concentration
(ppm) |
1461 |
1449 |
1573 |
1465 |
- |
| NOx mass flow Gas
mass (g/h) |
236756 |
235774 |
245233 |
215997 |
- |
| NOx emission rate
(g/kWh) |
20.07 |
19.49 |
20.79 |
18.60 |
- |
|
Table 6.3.4.3 Engine Performance data and NOx emission Calculation
(oxygen balance method)
| No. |
3rd voyage |
| 1 |
2 |
3 |
- |
- |
| Measurement Data
and Time |
J.S.T. |
20-Aug-02 |
11-Sep-02 |
29-Sep-02 |
- |
- |
|
230-330 |
800-900 |
400-500 |
- |
- |
| Local |
19-Aug-02 |
10-Sep-02 |
2002/-/28 |
- |
- |
| |
1030-1130 |
1600-1700 |
1000-1100 |
- |
- |
| Total Output Power
(kW) |
11989 |
12213 |
12136 |
- |
- |
| Output ratio to
CMCR (%L) |
86.0 |
87.6 |
87.1 |
- |
- |
| Engine Speed (rpm) |
96.6 |
96.6 |
96.4 |
- |
- |
| FO Consumption
(L/h) |
2243 |
2249 |
2254 |
- |
- |
| FO Temperature
at Engine Inlet (degC) |
98.0 |
98.0 |
98.0 |
- |
- |
| FO Density @ 15degC
(kg/m3) |
982.3 |
984.9 |
989.9 |
- |
- |
| FO Density @ Engine
Inlet (kg/m3) |
933.3 |
935.9 |
940.9 |
- |
- |
| FO Mass Flow (kg/h)
Gfuel |
2093 |
2105 |
2121 |
- |
- |
| Barometric Pressure
(hPa) |
1003.0 |
1020.0 |
1008.0 |
- |
- |
| Ambient Temperature
(degC) |
47.0 |
33.0 |
41.0 |
- |
- |
| Relative Humidity
(%) |
35.0 |
33.0 |
41.0 |
- |
- |
| Scavenging Pressure
(MPa) |
0.140 |
0.150 |
0.140 |
- |
- |
| Scavenging Temperature
(degC) |
52.0 |
50.0 |
51.0 |
- |
- |
| Ref. Scav. Temperature
(degC) Tscref |
38.9 |
39.5 |
39.3 |
- |
- |
| Pcomp (MPa) |
9.00 |
9.50 |
9.30 |
- |
- |
| Pmax (MPa) |
11.80 |
12.40 |
12.20 |
- |
- |
| T/C Speed (rpm) |
11,275 |
11,250 |
11,250 |
- |
- |
| Exh Gas Temperature
(degC) |
T/C
Inlet |
372 |
379 |
384 |
- |
- |
T/C
Outlet |
257 |
270 |
273 |
- |
- |
| Bunkering |
Place |
Antwerp |
Singapore |
Zeebrugge |
- |
- |
| Date |
03-Jul-02 |
23-Jul-02 |
02-Sep-02 |
- |
- |
Sample
Name |
F202009951 |
F202012049 |
F202012900 |
- |
- |
| NOx Concentration
(ppm) |
1,328 |
1,494 |
1,364 |
- |
- |
| O2 Concentration
(%) |
14.01 |
14.69 |
14.23 |
- |
- |
| Hydrogen content
in fuel oil (wt%) ALF |
10.80 |
10.67 |
10.39 |
- |
- |
| Carbon content
in fuel oil (wt%) BET |
86.70 |
85.92 |
86.05 |
- |
- |
| Sulphur content
in fuel oil (wt%) GAM |
1.70 |
3.00 |
2.50 |
- |
- |
| Nitrogen content
in fuel oil (wt%) DEL |
0.25 |
0.29 |
0.37 |
- |
- |
| Oxygen content
in fuel oil (wt%) EPS |
0.55 |
0.16 |
0.80 |
- |
- |
| Vapor Pressure
of Suction Air (kPa) Pa |
10.61 |
5.03 |
7.78 |
- |
- |
| Abs. humidity of
Suction Air (g/kg air) Ha |
23.92 |
10.29 |
20.32 |
- |
- |
| Vapor Pressure
of Scav. Air (kPa) Psc |
13.61 |
12.34 |
12.96 |
- |
- |
| Abs. humidity of
Scav. Air (g/kg air) Hsc |
37.36 |
32.02 |
35.39 |
- |
- |
| Lower value of
absolute humidity (g/kg) |
23.92 |
10.29 |
20.32 |
- |
- |
| Factor_1 compl
for Oxygen Balance |
200203 |
209920 |
203347 |
- |
- |
| Factor_2 for Oxygen
Balance |
318.39 |
316.58 |
314.20 |
- |
- |
| Oxygen Content
in Wet Air (wt%) TAU |
22.61 |
22.91 |
22.69 |
- |
- |
| Wet Exhaust Gas
Flow (kg/h) Gexhw |
99754 |
106619 |
102096 |
- |
- |
| Humidity Correction
Factor KHDIES |
1.2220 |
0.9873 |
1.1442 |
- |
- |
| Corrected NOx concentration
(ppm) |
1623 |
1475 |
1561 |
- |
- |
| NOx mass flow Gas
mass (g/h) |
256908 |
249577 |
252868 |
- |
- |
| NOx emission rate
(g/kWh) |
21.43 |
20.44 |
20.84 |
- |
- |
|
|
