Question

Difference between hoffman and bull trench

Answer 1

Hoffman's Kiln:The main difference between the Bull's trench kiln and the Hoffman kilnsare:
1. Hoffman's kiln is an over the ground structure while Bull's Trench Kiln is anunderground structure.
2.Hoffman's kiln have a permanent roof while Bull's trench Kiln do not have so itformer can be used in 12 months a year to manufacture bricks but later is stopped in themonsoon season.

Hoffman's kiln is generally circular in plan, and is constructed over the ground. The wholestructure is divided into the 12 chambers and the entire processes takes place simultaneouslylike in Bull's trench Kiln

Answer 2

Hoffman kiln is a structure which works above the ground whereas the Bull's trench kiln is a structure which works under the ground. Other differences are as follows:

Explanation:

• Hoffman kiln has a permanent roof whereas the Bull's trench does not have.
• The Hoffman kiln can be used for manufacturing the bricks for the whole year but the Bull's trench cannot be used in the monsoon season.
• The Hoffman kiln is in the form of circular ring chamber that have massive walls like chimney whereas the Bull's trench is circular or elliptical in shape.

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