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Iron Smelt Vinderheima 2006

Date: 5 November, 2006

Location: Vinderheima

Premise: Explore an interesting result from Early Iron 3 - that ore can be added very much faster than we have done in the past.

Experiment Notes - Norse Short Shaft Smelter

The Team:

Leader Darrell Markewitz
Staff Kevin Jarbeau
Ken Cook
Darrell Markewitz
Recorder Darrell Markewitz
Neil Peterson

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.
Smelt Totals
Total Charcoal 42 lb (19 Kg) Weight of Bloom   Total Elapsed Time: 2:48 to last charcoal added
Total Ore 47 lb (21 Kg) Weight of Slag:   Bloom Quality  
Discussion:

This smelt simply re-used the existing smelter, patched it in minor ways, and did a new smelt.  The difference being a planned ratio of nearly 1:1 ore/charcoal.

It didn't work.

Some of the problems.  
Fun none the less and a lovely day for a smelt.


Our images didn't turn out well due to a small technical glitch but here are four interesting shots.

       


And four more attempts at a "down the pipe" shot.  These shots are taken down the tuyure through the clear cap on the end.  I am currently using a manual focus 200mm lense with two ND0.6 filters to decrease the light level.  Even at 200mm the portions below occupy a space less than 2" square on the 4x6 print.  The apature is around f11, the internal light meter is suggesting around a 1/30 second exposure.  These are actually shot at 1/1000th and are still a little saturated.  Next time I want to pre-focus the camera at a target inside the smelter before the pre-heat.  My camera guy is also looking for a lense adapter which will jump the lense to a 400mm and knock of two more stops to allow me more freedom in choosing exposures.  Should be fun....

       


ELAPSED; COMPARE EVENT ORE CHARCOAL AIR
ADD (scoops)
(410 g)
AMOUNT
(Kg)
TOTAL
(Kg)
COMPARE
(LB)
TOTAL
(1 Kg each)
COMPARE
(LB)
SETTING  VOLUME
(litre/min)
    start preheat                
40   addtion of rough carcoal             B 700
10                 D 1060
5   start graded fuel                
                     
0             1      
4             2      
6             3      
7             4      
5   burn column to top of clay         5      
8   start of ore charges 5 2 2   6      
7 15   5 2 4 8.8 7 4.4    
7     5 2 6   8      
4 11   5 2 8 8.8 9 4.4    
8     5 2 10   10      
5 13 first ore hits tuyere? 5 2 12 8.8 11 4.4    
7   rod tuyere 5 2 14   12      
6 13   5 2 16 8.8 13 4.4    
7     6 2 18   14      
5 12   6 2 20 8.8 15 4.4    
6   last ore charges 2 0.8 20.8   16      
6             17      
8             18      
7   start burn down         19      
31   start emptying furnace             B 700
    TOTALS LBS   47   42      
      KG   21.00   19.00      


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.
      Updated: 4 Dec, 2007
Text © Neil Peterson, 2006   Photographs © Individual artists   Copyright details
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