Practical Combustion Methods Used in Industries - High Temperature Air Combustion: From Energy Conservation to Pollution Reduction - page 219

T ABLE 4.2 (CONTINUED)

Energy Savings and Expected Values of Energy Saved

Energ y Reduction Objectives Expected Values of Energy Saved

Heat
Contained in
Steel
Materials

Heat
Loss to
Waste
Gas

Heat
Loss to
Cooling
Water

Heat Loss
to
Radiation

Value of Energy
Saved Value for

Countermeasures Classification Energy Saving ( × 10

3

kcal/t) Remarks

Impro ving of

operation

1. Improvement of heat patterns Decreasing the waste gas

temperature by 100˚C

15

2. Extracting at a lower temperature Decreasing the extracting

temperature by 50˚C

22

3. Improvement of manufacturing

efficiency

Improving by 1% 50 Including a reduction in

electric power

4. Improvement of the rate of operation

5. Carefully thought-out controlling of

the operation (heat insulation,
temperature rising, furnace
pressure, cooling water control,
etc.)

Unifying the thickness of all
steel materials

~50

6. Unifying of the sizes of steel material