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Iron Smelt - Wareham, ON - Nov 6, 2010

Date:Nov 6, 2010

Location:Wareham, ON

See also: Darrell Markewitz's ironsmelting site

Team: Neil Peterson, Richard Schwietzer, Darrell Markewitz, Katie Thornton (Records and Consolodation), Thomas Beckett (Consolodation)

Premise: Practice for CanIron8 presentation.

Furnace Design

TypeEconoNorse in a can (enclosed fire brick), tap arch
Extractiondismantled
Diameter28 cm
Height76 cm
Volume46773.44 cm3
Tuyure Typeceramic tube
Tuyere height from base21 cm
Tuyere penetration into furnace4 cm
Tuyere angle23 deg
Base designnatural set base cm

Burn Details

Bellow Typeblower
Avg Air rateunknown litres per minute
Total Charcoal Mass38 Kg
Avg Burn rate12 min per 2 Kg
Ore TypeGranular Hematite
Total Mass of Ore24.6 Kg
Burn Duration4.5 Hours

Results

Mass of Bloom8.5 Kg
Bloom Typehigh carbon
Yield34.5%
Notes 2.7 Kg white cast iron also recovered

Smelt_cd Reports of all of our iron smelting efforts along with more articles and information are available on the "Iron Smelting in the Viking Age" CD from the Wareham Forge.  Copies of the CD can be purchased here.

Discussion:




Conclusions:




Photos:


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Building the smelter Smelter Finsihed Bloom

Raw Data:



CLOCK ELAPSED EVENT AIR     CHARCOAL     ORE    
            UNIT COUNT TOTAL UNIT COUNT TOTAL
      gage LpM P bucket   kg scoop   kg
                1.45     0.615
9:30   start furnace construction                  
11:00 1:30 start wood split preheat                  
11:52 :52 add rough charcoal                  
12:10 :18 first graded charcoal       2 2 2.90      
                       
12:14   Start main sequence                  
12:24 :10 charcoal       1 3 4.35      
12:30 :06 charcoal       1 4 5.80      
12:39 0:09 charcoal       1 5 7.25      
12:45 0:06 reaction column hot, first ore       1 6 8.70      
12:46 :07 ore, charcoal       1 7 10.15 1 1 0.615
12:57 0:11 ore, charcoal       1 8 11.60 1 2 1.23
13:04 0:07 ore, charcoal       1 9 13.05 1 3 1.845
13:12 0:08 ore, charcoal       1 10 14.50 1 4 2.46
13:19 0:07 ore, charcoal       1 11 15.95 1 5 3.075
13:26 0:07 ore, charcoal       1 12 17.40 1 6 3.69
13:35 0:09 ore, charcoal       1 13 18.85 1 7 4.305
13:43 0:08 2 x ore (1.23 kg) , charcoal       1 14 20.30 2 9 5.535
13:52 0:09 2 x ore, charcoal       1 15 21.75 2 11 6.765
14:01 0:09 2 x ore, charcoal       1 16 23.20 2 13 7.995
14:09 0:08 3 X ore (1.845 kg), charcoal       1 17 24.65 3 16 9.84
14:17 0:08 3 X ore, charcoal       1 18 26.10 3 19 11.69
14:27 0:10 3 X ore, charcoal       1 19 27.55 3 22 13.53
14:35 0:08 3 X ore, charcoal       1 20 29.00 3 25 15.38
14:43 0:08 3 X ore, charcoal       1 21 30.45 3 28 17.22
14:52 0:09 4 x ore, charcoal       1 22 31.90 4 32 19.68
15:01 0:09 4 x ore, charcoal       1 23 33.35 4 36 22.14
15:11 0:10 4 x ore, charcoal       1 24 34.80 4 40 24.6
15:20 0:09 charcoal       1 25 36.25   40 24.6
15:26 0:06 charcoal       1 26 37.70   40 24.6
                       
16:00 * :34 * extraction begins                  
  :30 * extraction sequence                  
                       
    TOTALS                  
    Time - (build to extraction) 5                
    Tme - (smelt sequence) 4:15                
    Charcoal 34 +                
    Ore 24.6                
    Bloom 8.5                
    Yield % 34.5                
                       
    Recorded by Katie Thorton                  
Smelt_cd Reports of all of our iron smelting efforts along with more articles and information are available on the "Iron Smelting in the Viking Age" CD from the Wareham Forge.  Copies of the CD can be purchased here.
Text © Darrell Markewitz
Photographs © Darrell Markewitz
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