| |
Step 1
Enhancement of management, Improvement
of
operation |
Step 2
Additional installation or improvement
of
equipment |
Step 3
Change in process, Use of high-efficiency
equipment |
| Rationalization of fuel combustion |
* Control of air ratio, selection of suitable
burner type for furnace and fuel species.
Cleaning of burners. Furnace pressure control.
Prevention of air entry, etc. |
* Combustion control through exhaust gas
analysis* Installation of combustion control
devices* Adjustment of gas calorie |
* Low NOx burners, Regenerative burners
* Fluidized bed combustion
* Fuel change |
| Rationalization of heating/cooling and heat
transfer |
* Optimization of seam pressure
* Cleaning the heating surface
* Improvement of heat patterns
* Improvement of methods of charging materials
to be heated
|
* Extension of the preheating zone of industrial
furnaces, Reduction of heat capacity
* Improvement of control accuracy
* Additional installation of heat exchangers,
Use of multiple effect
* Increasing the stages for the distillation
tower, Changing filling materials
|
Omission of processes, Utilization of sensible
heat in the preceding process (hot strip
charge), Re-compression of steam, Improvement
of catalyst (PP, exhaust gas treatment),
Use of film, Changing the constituents (low-temperature
paints, materials that do not require heat
treatment), Heating by infrared rays, Changing
materials (use of recycled paper and water
sediment), and jet heating |
| Prevention of heat loss through radiation/heat
transfer |
* Optimization of the volume of boiler blow
water
* Reducing the radiation surface area and
standby time
* Prevention of steam leaking portions, etc.
* Reinforcement of heat insulation, Reduction
of opening areas
|
* Continuous blow equipment
* Selection of steam traps
* Removal of unnecessary piping
* Spraying rock wool
|
Reducing time by use of larger current for
electric furnaces |
| Recovery and reuse of waste energy |
Prevention of waste energy leaks
|
* Closed recovery of condensate
* Anti-corrosive heat exchangers
* Heat pipe, Heat pumps
|
* Power generation through recovery of low
to medium temperature waste heat, Power generation
through recovery of waste pressure, Recovery
of waste heat from solids (slag, sintered
ores , and coke- Coke Dry Quenching)
* Energy supply to parties outside the factory
(regional heating/cooling)
|
| Rationalization of conversion of heat into
motive power, etc. |
* Optimization of extraction, Back steam
pressure
* Improvement of boiler turbine load distribution
* Variable pressure operation
|
* Higher efficiency of turbine blades and
nozzles
* Rationalization of steam ejectors
* Recovery of motive power from vacuum steam
|
* Higher temperatures/pressure of steam
* Combined heat and power supply (co-generation,
fuel cells)
-Combined cycle power generation, Improvement
of engine efficiency
|
| Rational use of electricity |
* Switch-off or cutting down excess lighting,
funs, elevators etc.
* Optimization of operating numbers of funs,
pumps and compressors according
to road
* Balancing among roads to each pumps
|
* Valuable fluid mass control system (Inverter
control system)
* Fluorescence lighting
* Power factor improving facilities (phase-sifting
condenser, reactor)
|
* High efficiency motor, transformer
* Electricity recovery system of elevator,
crane
* High efficiency fluorescence lighting (inverter
control type)
|