Hot blast
Hot blast refers to the preheating of air blown into a blast furnace or other metallurgical process. As this considerably reduced the fuel consumed, hot blast was one of the most important technologies developed during the Industrial Revolution.
Hot blast also allowed higher furnace temperatures, which increased the capacity of furnaces.
As first developed, it worked by alternately storing heat from the furnace flue gas in a firebrick-lined vessel with multiple chambers, then blowing combustion air through the hot chamber. This is known as regenerative heating. Hot blast was invented and patented for iron furnaces by James Beaumont Neilson in 1828 at Wilsontown Ironworks in Scotland, but was later applied in other contexts, including late bloomeries. Later the carbon monoxide in the flue gas was burned to provide additional heat.
Q1759095
preheating of air
Concept
Q181485
blast furnace
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Q42501
fuel
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Q2269
Industrial Revolution
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Q677
iron
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Q1355479
James Beaumont Neilson
PER
Q8023306
Wilsontown Ironworks
MEDIA
Q964257
bloomeries
Concept
Q2025
carbon monoxide
Concept
Q5910687
Hot blast
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Q5910687
Hot blast
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Q5910687
Hot blast
Concept
1828-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1828
DATE
time of discovery or invention