IRON SMELT Experiment Overview

2009 Iron Smelt Experiments


Go HERE for a bare text version (all experiments) ...
Go HERE for table style version (all experiments) ...

Date: May 30, 2009
Experiment: 40 / D18
Location: Wareham ON
Team: Ken Cook, Neil Peterson, Richard Schwitzer
Furnace: Short Shaft
solid clay
incontinent (top extraction)
Size: 20 cm x 65 - 62 H
Source: based on archaeology from L'Anse aux Meadows NL
Tuyere: standard ceramic tube
Placement: natural set base, about 17 cm
3 cm proud
set at 23 degrees down
Bellows: electric blower
Air: 650 LPM
Charcoal: 38 + kg broken hardwood
Consumption: about 2 kg charcoal every 16 minutes
Ore: DARC Dirt 2 (black iron oxide analog)
18 kg (damp)
Sequence: ore added about every 16 minutes
charges range from 1 to 2 kg each
Duration: about 4 1/2 hours (not including preheat)
Result: 4.9 kg bloom - dense soft iron
Yield: 33%
Notes: - classic planno-convex shaped bloom

Date: October 11, 2009
Experiment: 41 / D19
Location: Wareham ON
Team: Ken Cook (as smelt master), Sam Falezone, Neil Peterson, Richard Schwitzer
Furnace: Boxed Short Shaft
solid clay slabs
incontinent (top extraction)
Size: 20 cm x 68 H
Source: based on archaeology from L'Anse aux Meadows NL
Tuyere: standard ceramic tube
Placement: natural set base, about 14 cm
5 cm proud
set at 22 degrees down
Bellows: electric blower plus mechanical box bellows system
Air: approximately 900 LPM
Charcoal: 43 + kg broken hardwood
Consumption: about 2 kg charcoal every 16 minutes
Ore: mixture of DD 1 / DD2 / Haematite
20.7 kg total
Sequence: ore added about every 12 minutes
charges range from 1 to 2 kg each
Duration: about 4 3/4 hours (not including preheat)
Result: 5.6 kg bloom - dense soft iron
Yield: 27%
Notes: - classic planno-convex shaped bloom

Date: November 7, 2009
Experiment: 42 / D20
Location: Wareham ON
Team: Ken Cook, Sam Falezone, Neil Peterson
plus bellows operators - Dave Cox, Marcus Burnham, Richard Schwitzer
Furnace: Boxed Short Shaft
clay and sand mix
tap arch (top extraction)
Size: 20 cm x 68 H
Source: based on archaeology from L'Anse aux Meadows NL
Tuyere: standard ceramic tube
Placement: natural set base, about 15 cm
5 cm proud
set at 22.5 degrees down
Bellows: Norse style double bag (smelting)
delivery estimated at 700 LPM (?)
Charcoal: 28 + kg (?) broken hardwood
Consumption: about 2 kg charcoal every 15 minutes
Ore: DD 2 analog - 18 kg
Sequence: data not clear (counted as 'scoops')
Duration: about 3 1/2 hours (not including preheat)
Result: 2.9 kg bloom - lacy consistancy
Yield: 16%
Notes: - test of human powered air


TEAM PARTICIPANTS


Dark Ages Re-creation Company
Core (demo) Team:
Ken Cook, Neil Peterson, Richard Schwitzer
Assisting:
Dave Cox, Gus Gissing, Sam Falezone, Marcus Burnham, Steve Strang
Karen Peterson, Vandy Simpson

IRON SMELT LINKS

Lee Sauder
Mike McCarthy
DARC - Iron Experiments



Unless indicated, All text and photographs © 2005 - 2008 Darrell Markewitz - the Wareham Forge