| EVENT | Date | September (4) 2021 | ||||||||
| Description | Hals Icelandic Phase 3 B | |||||||||
| Goal | simulated Icelandic clay mix- reuse | |||||||||
| Team | Dave Cox (M) | |||||||||
| Neil Peterson | ||||||||||
| Rey Cogswell (extraction) | ||||||||||
| Marcus Burnham | ||||||||||
| Richard Schwitzer (hammer) | ||||||||||
| records | Darrell Markewitz | |||||||||
| FURNACE | Type | Icelandic turf build | ||||||||
| Material | Wareham sod / Icelandic clay | |||||||||
| Walls | cylinder / clay+sand+horse | 4.5 | ||||||||
| Interior | 28 | |||||||||
| Height | 70 | |||||||||
| Stack | 43 | |||||||||
| Base | 30 | |||||||||
| Packing | charcoal fines | 16 | ||||||||
| Tuyere | standard copper | |||||||||
| Diameter | 2 | |||||||||
| Angle | -22.5 | |||||||||
| Proud | 5 | |||||||||
| Air System | standard electric blower | |||||||||
| Extraction | bottom via arch | |||||||||
| MATERIALS | Ore | DD 1 (red) | 51% Fe | |||||||
| Charcoal | Oak | 1.97 kg | ||||||||
| CLOCK | ELAPSED | EVENT | AIR | CHARCOAL | ORE | |||||
| UNIT | COUNT | TOTAL | Unit | TOTAL | ||||||
| meter | to LpM | LpM | bucket | kg | kg | kg | ||||
| 1.97 | ||||||||||
| 845 | start wood twigs pre-heat | |||||||||
| 910 | start gentle air | 100 | ||||||||
| 1007 | T 1:27 | start fill ungraded | ||||||||
| 1011 | filled, full air blast | 700 | 4 | 4 | 7.9 | |||||
| 1015 | air increase | 900 | 1 | 5 | 9.9 | |||||
| 1024 | 9 | 900 | 1 | 6 | 11.8 | |||||
| 1034 | 10 | 1 | 7 | 13.8 | ||||||
| 1044 | 10 | graded charcoal | 1 | 8 | 15.8 | |||||
| 1056 | 12 | poked to settle | 1 | 9 | 17.7 | |||||
| 1104 | 8 | 1 | 10 | 19.7 | ||||||
| 1114 | 10 | 1 | 11 | 21.7 | ||||||
| 1119 | first addition tap slag | |||||||||
| air meter | 11.5 | 864 | ||||||||
| 1123 | 9 | reduce air | 552 | 700 | 1 | 12 | 23.6 | 1 S | 1 S | |
| 1135 | 12 | 1 | 13 | 25.6 | 1 S | 2 S | ||||
| 1150 | 15 | 1 | 14 | 27.6 | 1 S | 3 S | ||||
| 1155 | high slag bowl, vertical probe to drop | |||||||||
| 1200 | 10 | air increase | 800 | 1 | 15 | 29.6 | .33 S | 3.3 S | ||
| 1212 | burn through - above tuyere | |||||||||
| 1216 | 16 | 1 | 16 | 31.5 | 1 S | 4.3 S | ||||
| 1222 | probe to drop | 8.8 | 660 | |||||||
| 1225 | probe to drop | |||||||||
| 1231 | 15 | first ore addition | 1 | 17 | 33.5 | 1 O | 1 O | |||
| 1236 | increase air | 900 | ||||||||
| 1244 | 13 | open arch, rake - to drop bowl | 9.6 | 720 | 1 | 18 | 35.5 | 1 | 2 | |
| 1257 | 13 | 1 | 19 | 37.4 | 1 | 3 | ||||
| 1306 | 9 | 1 | 20 | 39.4 | 1 | 4 | ||||
| 1317 | 11 | 1 | 21 | 41.4 | 1.5 | 5.5 | ||||
| 1330 | 13 | 1 | 22 | 43.3 | 1.5 | 7 | ||||
| 1342 | 12 | 1 | 23 | 45.3 | 1.5 | 8.5 | ||||
| 1354 | 12 | 1 | 24 | 47.3 | 2 | 10.5 | ||||
| 1402 | 8 | 1 | 25 | 49.3 | 2 | 12.5 | ||||
| 1415 | 13 | 1 | 26 | 51.2 | 2 | 14.5 | ||||
| 1426 | 11 | 1 | 27 | 53.2 | 2 | 16.5 | ||||
| 1435 | 9 | 1 | 28 | 55.2 | 2 | 18.5 | ||||
| 1446 | 11 | 1 | 29 | 57.1 | 3 | 21.5 | ||||
| 1500 | 14 | uncertain time | 1 | 30 | 59.1 | 3 | 24.5 | |||
| 1507 | 9 | with above | 1 | 31 | 61.1 | 1.5 | 26 | |||
| start burn down | ||||||||||
| 1515 | 8 | remainder slag | 1 | 32 | 63.0 | |||||
| NR | 1 | 33 | 65.0 | |||||||
| start extraction | ||||||||||
| TOTALS | ||||||||||
| Charcoal | 65 | kg | ||||||||
| Ore | 26 | kg | ||||||||
| iron slag added | 4.3 | kg | ||||||||
| Bloom | 8.2 | kg | ||||||||
| Gromps | ||||||||||
| Yield | 32 | % | ||||||||
| Condition | spongy looking, additional slag | |||||||||
| Quality | ||||||||||
| Slag | all left in place as erosion | |||||||||
| Main sequence time | 1231 | 1507 | 156 | minutes | ||||||
| Charcoal rate | 27.6 | 5.7 | MpK | |||||||
| Ore rate | 26 | 6.0 | MpK | |||||||