6 Site D
6.1 Introduction
Sampling was carried out at Site D on 12 and 13 March 2003. Samples were collected from the induction furnace discharge to determine the concentration and mass emission of PCDD and PCDF present in the gases discharged to the atmosphere.
The sampling point was located in a custom built duct, which was attached to the end of the stack. 100% of the discharge from the main stack passed through this duct.
Details of the sampling date, times and stack dimensions are:
- Sample date and time:
- Sample 1: 12 March 2003, 14:51-15:55 and 13 March 2003, 09:50-12:37
- Sample 2: 13 March 2003, 13:00-15:55
- Stack dimensions: 218 x 261 mm rectangular duct.
Note: Test 1 was stopped on 12 March and restarted on 13 March.
6.2 Results
Table 6.1: Particulate emissions from induction furnace
| Sample | Sample mass (g) |
Particulate emissions | |
|---|---|---|---|
| (mg/m3, dry, 0°C, 1 Atm) | (kg/h) | ||
|
1 |
0.0214 |
4.1 |
0.0073 |
|
2 |
0.0079 |
2.0 |
0.0038 |
|
Average |
3.0 |
0.0055 |
|
Table 6.2: Average stack gas conditions at the bag house sampling point
View average stack gas conditions at the bag house sampling point (large table)
Table 6.3: Average conditions for stack
View average conditions for stack (large table)
Table 6.4: Results of isokinicity for induction furnace
| Sample | Actual sample volume (m3, 0°C, 1 Atm, dry) |
Calculated sample volume (m3, 0°C, 1 Atm, dry) |
Isokinicity (%) |
|---|---|---|---|
|
1 |
5.1733 |
5.5539 |
93% |
|
2 |
4.0615 |
4.0779 |
100% |
All samples are within the required isokinicity range of 100 ± 10%.
Table 6.5: Average combustion gas results
| CO (mg/m3) |
SO2 (mg/m3) |
NO (mg/m3) |
O2 (%) |
NO2 (mg/m3) |
|---|---|---|---|---|
|
0.22 |
<25 |
1.5 |
21.0 |
<9 |
Table 6.6: Summary results from induction furnace sample 1
View summary results from induction furnace sample 1 (large table)
Table 6.7: Results from induction furnace (individual congeners sample 1)
View results from induction furnace (individual congeners sample 1) (large table)
Table 6.8: Summary results from induction furnace sample 2
View summary results from induction furnace sample 2 (large table)
Table 6.9: Results from induction furnace (individual congeners sample 2)
View results from induction furnace (individual congeners sample 2) (large table)
