|
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 |
- Improvement of air ratio (stabilization of load factors by means of selection of burners, 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
- 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, coke, and sintered ores)"
- 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"
|
