| EVENT | Date | October (28) 2023 | |||||||
| Description | Pluse Air test 2 | ||||||||
| Goal | Sliding gate / pulse air effects | ||||||||
| Team | Darrell Markewitz (M) | ||||||||
| Neil Peterson | |||||||||
| Kiernan Rogers | |||||||||
| Richard Schwitzer | |||||||||
| photos | Sarah Scroggie | ||||||||
| FURNACE | Type | standard short shaft | |||||||
| Walls | cylinder / clay+sand+horse | 7 to 4 | |||||||
| Interior | 25 | ||||||||
| Height | 62 | ||||||||
| Stack | 45 | ||||||||
| Base | 18 | ||||||||
| Packing | charcoal fines | 19 | |||||||
| Tuyere | standard copper | ||||||||
| Diameter | 2 | ||||||||
| Angle | -22.5 | ||||||||
| Proud | 5 | ||||||||
| Air System | standard electric blower / sliding gate | ||||||||
| Extraction | bottom / furnace collapse | ||||||||
| MATERIALS | Ore | DD 1 (red) | 51% Fe | ||||||
| Charcoal | Oak / Ash | ||||||||
| CLOCK | ELAPSED | EVENT | AIR | CHARCOAL | ORE | ||||
| UNIT | COUNT | TOTAL | Unit | TOTAL | |||||
| pressure | LpM | bucket | kg | kg | kg | ||||
| psi | oak = 2.0 | ||||||||
| ash = 1.7 | |||||||||
| 830 | start wood splints pre-heat | ||||||||
| 905 | start sliding gate, minimal air | touch | |||||||
| adjust rate to 1 per second | |||||||||
| 917 | open blast slightly | 200 | |||||||
| 922 | increase, assumed loss? | 600 | |||||||
| 924 | T 56 | first rough charcoal to ignite - oak | 1 | 1 | 2.0 | ||||
| 926 | fill with rough charcoal | 3 | 4 | 8.0 | |||||
| 944 | probe to settle | 1 | 5 | 10.0 | |||||
| 945 | tape to seal leak at volume gate | ||||||||
| 958 | T 34 | probe to settle, start graded | 1 | 6 | 12.0 | ||||
| 1200 | start main sequence | ||||||||
| 1218 | air increase against pulsing amount | 800 | |||||||
| 1219 | 19 | probe to settle | 1 | 7 | 14.0 | ||||
| 1240 | column ignited - top touches off | ||||||||
| 1241 | 22 | 1 | 8 | 16.0 | |||||
| 1303 | 22 | 1 | 9 | 18.0 | |||||
| 1330 | 27 | first slag addition | 1 | 10 | 20.0 | .8 S | .8 S | ||
| 1357 | 27 | 1 | 11 | 22.0 | 1 S | 1.8 S | |||
| 1425 | 28 | 1 | 12 | 24.0 | 1 S | 2.8 S | |||
| 1450 | 25 | first ore addition | 1 | 13 | 26.0 | 1 O | 1 O | ||
| 1512 | air via wind gauge (?) | 22 kph | |||||||
| 1545 | 55 | slag bowl observed too high | 1 | 14 | 28.0 | 1 | 2 | ||
| 1605 | 20 | dropped slag bowl (additional volume) | 1 | 15 | 30.0 | 1 | 3 | ||
| 1631 | 26 | 1 | 16 | 32.0 | 1 | 4 | |||
| 1711 | 40 | air increase | 900 | 1 | 17 | 34.0 | 1 | 5 | |
| 1744 | 33 | 1 | 18 | 36.0 | 1 | 6 | |||
| 1814 | 30 | switch to ash charcoal / increase ore | 1 | 19 | 37.7 | 1.5 | 7.5 | ||
| 1847 | 33 | 1 | 20 | 39.4 | 1.5 | 9 | |||
| 1923 | 36 | 1 | 21 | 41.1 | 1.5 | 10.5 | |||
| 1955 | 32 | increase ore | 1 | 22 | 42.8 | 2 | 12.5 | ||
| 2005 | poked to settle | ||||||||
| 2025 | 30 | 1 | 23 | 44.5 | 2 | 14.5 | |||
| 2102 | 37 | 1 | 24 | 46.2 | 3 | 17.5 | |||
| 2132 | 30 | final to cover / start burn down | 1 | 25 | 47.9 | ||||
| 2237 | T 65 | start extraction | |||||||
| TOTALS | |||||||||
| Charcoal | 48 | kg | |||||||
| Ore | 17.5 | kg | |||||||
| iron slag added | 2.8 | kg | |||||||
| Bloom | total 3023 gm | 3 | kg | ||||||
| Gromps | |||||||||
| Yield | 17 | % | |||||||
| Condition | fragmented / 2 kg retained | ||||||||
| Quality | |||||||||