CLOCK ELAPSED EVENT AIR CHARCOAL ORE
June 20, 2020 UNIT COUNT TOTAL Unit TOTAL
Bones' concept test pressure LpM bucket kg kg kg
psi 1.8 ?
920 start wood splints pre-heat
1100 1-40 start fill charcoal (error, removed)
gap to place lower bone
1125 fill with rough charcoal 800 5.5 9.90
1134 finish last part bucket rough 0.5 6 10.80
1148 14 rough charcoal 1 7 12.60
1151 probed to settle
1153 5 switch to graded, top ignites 1 8 14.40
1207 14 1 9 16.20
1224 15 1 10 18.00
1229 increase air 900
1231 start first slag addition
1240 16 1 11 19.80 1 S 1 S
1252 12 1 12 21.60 1 S 2 S
1307 15 1 13 23.40 1 S 3 S
1322 15 1 14 25.20 1 S 4 S
slag tap / start analog addition
1333 11 1 15 27.00 1 1
1340 bone addition
1345 12 1 16 28.80 1 2
1401 16 ore increase 1 17 30.60 1.5 3.5
1418 17 1 18 32.40 1.5 5
1422 air increase 1000
1441 23 tuyere 25% blocked, even ring 1 19 34.20 2 7
1452 11 1 20 36.00 2 9
1504 12 1 21 37.80 2 11
1517 13 1 22 39.60 2 13
1531 14 1 23 41.40 3 16
1540 9 1 24 43.20 2 18
1556 16 1 25 45.00 3 21
1608 12 1 26 46.80 2 23
last ore addition 1 27 48.60 1.75 24.75
add gromps 1 28 50.40 1 G 1 G
1430 add bone, charcoal to cover
1646 10 last carcoal added 1 29 52.20
start burn down
(no record of extraction time)
TOTALS
Charcoal - all Maple 52 kg
Ore 24.75 kg
Ore total with gromps 25.75
Bloom 2.6 kg
Yield 10.5 %
flat disk, crumbly texture
TEAM Neil Peterson / Rey Cogswell