Pressure Control for Furnace

Heating furnaces have a large number of apertures, for example, raw material charging ports, extraction ports, and cracks in the furnace ceiling and side walls. If the pressure inside the furnace is too high, flame and heat is forced out of the furnace resulting in unnecessary heat losses. If the internal pressure is too low, then cold air is sucked into the furnace increasing fuel consumption. The pressure gradient also shows variation across the furnace length.  The furnace pressure control technology aims at maintaining optimum presssure in different parts of the furnace to minimize energy consumption. 

This technique is generally applicable to industrial furnaces, rolling mill reheating furnaces included.  However, no information on specific application in the rolling mill exists. The saving information proovided below is for an industrial drying furnace and is intended to exmplify the technique's potential.  

Development Status Products

Pressure Control for FurnaceCosts & Benefits

Parent Process: Rolling Mills
Energy Savings Potential

LPG consumption was reduced by 83.3 tons/y in a drying furnace. Electric power savings were 24,734kWh/y.

CO2 Emission Reduction Potential

Lower emissions due to energy savings by the technology.


Cost savings are ¥413,000/y.

Pressure Control for Furnace Publications

Global Warming Countermeasures: Japanese Technologies for Energy Savings / GHG Emissions Reduction

This revised 2008 version of the publication from New Energy and Industrial Technology Development of Japan includes information on innovative Japanese technologies for energy efficiency and for the reduction of COemissions.  

Page Number: