Note that the first five experiments are at a higher speed. From 20/11/95 onwards, setup was as normal
| Date | Water source and algae |
T / C |
Stirring |
Oxygen transfer velocity |
SF6 transfer velocity (measured endpoint) | SF6 transfer velocity (endpoint expected from spike) | CO2 transfer velocity |
| 16 / 9 / 95 | seawater with Dunaliella |
19.0 |
paddle stump only | 1.30 (12.4) | 1.37 (11.9) | 3.07 at 25C | |
| 21 / 9/ 95 | MilliQ deionised |
19.6 |
paddle stump only |
3.2 (later fell to 2.0) |
2.85 (9.9) | 2.20 (11.7) | 2.16 at 18.4C |
| 26 / 9/ 95 | MilliQ deionised |
19.0 |
medium paddle |
4.25 |
2.09 (5.4) | 2.73 (4.9) | 4.02 at 18.8C |
| 28 / 9/ 95 | fresh seawater (unfiltered) |
17.8 |
paddle stump only |
1.81 |
0.87 (4.5) | 1.17 (3.4) | 3.03 at 17.6C |
| 8 / 11/ 95 | fresh seawater (unfiltered) |
17.3-16.1 |
paddle stump only |
1.82 |
1.30 (3.9) | 0.64 (5.4) | 3.6 at 17C |
| 20-22 / 11/ 95 | seawater with Dunaliella
(bloom 1 -early stage) |
14.8 |
12.5 rpm (SF6)
13.5 rpm (O2) |
2.34 |
1.43 (6.2) | 1.17 (7.2) | see section 8.3.1 |
| 6-7 / 12 / 95 | seawater with Dunaliella
(bloom 1, thick algal film) |
14.9 |
13.6 rpm(SF6)
14.0 rpm (O2) |
2.18 - 2.51 |
1.23 (4.8) | 0.87 (6.4) | see section 8.3.1 |
| 13 / 1 / 96 | seawater with Dunaliella
(bloom 2, culture just added) |
15.2 |
13.0 rpm
(drops to 11.7) |
2.4 (drops to 1.7) |
see section 8.3.2 | ||
| 25 / 1 / 96 | seawater with Dunaliella
(bloom 2 late, not intense) |
14.6 |
13.6 rpm | 1.84 (5.9) | 1.18 (7.8) | see section 8.3.2 | |
| 9 / 2 / 96 | seawater (filtered no algae) |
14.2 |
12.8 rpm | 1.61 (9.6) | 1.96 (8.6) | ||
| 3-5 / 3 / 96 | seawater with Phaeodactylum (thick algal film) |
14.8 (SF6) 15.3 (O2) |
13 rpm |
1.6 (efflux) 2.0 (influx) |
1.24 (9.4) | 1.48 (8.4) | see section 8.3.3 |
| 15 / 8 / 96 | seawater with Dunaliella
(bloom 3 not intense) |
15.0 |
13.2 rpm | 1.39 (12) | 2.12 (9.1) | see section 8.3.6 | |
| 3 / 10 / 96 | seawater with Dunaliella
(bloom 4 thick algae) |
15.0 |
13 rpm | 0.95 (2.8) | 2.8 (4.6) | see section 8.3.7 |