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METI / ECCJ / ACE Training Program MTPEC06 (2007.01)

(2) Air Conditioners and Refrigeration Facilities
1. Operation management
  • Optimization of set temperature and humidity
  • Reduction in volume of outdoor air intake
  • Control of unit numbers in operation of heat source facilities
  • Change in temperature set of cold water outlet
  • Scheduled operation
  • Prevention of outdoor air intrusion, and ventilation status
  • Shielding of radiation heat from high temperature equip
2. Energy conservation measures
  • Enhancement of building thermal insulation, shield against solar insolation
  • Utilization of outdoor air
  • Recovery and utilization of waste heat, heat pumps
  • Revolution control (VAV etc.) in transport facilities (Pumps, fans)
  • Local cooling, local exhaust ventilation
  • Stratified air conditioning, reduction of air volume to be conditioned
  • Utilization of ice thermal storage system

3. Operation management of cooling facilities
  • Operating power of refrigerator
  • Inlet/outlet pressures of refrigerant
  • Inlet/outlet temperature and pressure of water
4. Operation management of auxiliary facilities
  • Operating power of cooling towers
  • Water quality control (Electric conductivity)
  • Pump operation power (Water volume, head)
5. Cold storage / refrigeration facilities
  • In/out access management
  • Thermal insulation management
  • Modification to high-efficiency

(3) Pumps, fans, air compressors
1. Operation management of pumps and fans
  • Status of valve opening, and closing
  • Route modification (Piping and ducts)
  • Operation flow-rate and operation pressure
  • Design tolerance check
  • Revolution control, number control of units in operation
2. Operation management of air compressor systems
  • Review of type (Screw/reciprocating type, blower)
  • Compatibility between capacity and type
  • Reduction of discharge pressure and final working pressure
  • Separation to high and low pressure lines
  • Ventilating facilities and ambient temperature
  • Review of piping size and route
  • Air receiver installation
  • Number control of units in operation
  • Optimum capacity control
  • Countermeasures to leakage
  • Utilization of waste heat

(4) Boilers/Industrial Furnaces, Steam Systems, Heat Exchangers, Waste Heat/Waste Water, etc.
1. Boilers/Furnaces (B/F): Combustion management
  • Control of air ratio and exhaust gas
  • Burner, fuel and air supply system
  • Combustion control system
  • Regenerative combustion system
  • Fuel conversion
2. B/F: Operation and efficiency management
  • Load factor, status of start-up and shut-down
  • Number control of units in operation
  • Thermal efficiency, heat balance, heat distribution
  • Water quality management, blow ope. management
3. B/F: Insulation and radiation loss prevention
  • B/F external wall temp., duct temp.
  • Thermal insulation and insulator (Thermal storage loss)
  • Sealing of openings, furnace inside pressure
4. Temperature control of exhaust gas, waste heat recovery
  • Exhaust gas temperature
  • Heat recovery (Feed water and air preheating)
  • Circulation of exhaust gas
5. Steam: Operationmanagement
  • Dryness, carryover
  • Set of steam pressure and temperature for facilities
  • Steam flow volume
6. Steam: Management of leakage andinsulation
  • Piping system, tanks, etc.
  • Load side equipment

7. Optimizing of steam piping system
  • Piping route and size
  • Removing of unnecessary piping
  • Integration of multiple steam systems
8. Load leveling in steam system
  • Accumulator installation
  • Replacement of steam ejectors to vacuum pumps
  • Measures to load side
9. Recovery and use of steam drainage
  • Recovery of steam pressure (Back pressure turbine)
  • Steam trap management
  • Collection place of recovered drain and collection system
  • Utilization of flash steam
10. Operation management of heat exchangers
  • Advisability of type
  • Advisability of utilization and heat transfer medium
  • Maintenance status (Fouling and pressure loss)
  • Temperature of heat transfer medium, and material heated
11. Reduction of waste heat and waste water
  • Heat recovery from hot water
  • Rationalization of waste gas duct
  • Recirculation of cooling water
  • Concentration management of impurities in water

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