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METI/ECCJ/AOTS Training Program Vietnam

Small Group Improvement Approaches
  • Identifying and analyzing the current situation
    • The same operators form a group.
    • Identify the actual energy consumption by group operations.
    • Perform measurement by operation condition and draw a graph of the tendency.
    • Operation conditions: Products, processes, etc.
    • Fuel, electric power, steam, compressed air, water, nitrogen
  • Detecting problems and reviewing improvements
    • Discussion by group members
    • Improvement planning: Using engineering staff and external information (from manufacturers, etc.)
    • Evaluating improvement proposals: Reliability and operation- and quality-related performance of technology, cost, and effects
  • Implementing improvements
    • The internal energy committee adopts and implements (carries out) improvements.
  • Confirming effects, standardizing operations, development of improvements to other departments
Case Presentation Meetings
  • Branch presentation meeting
    • A branch presentation meeting is held at eight branches of the Energy Conservation Center in Japan.
    • All entrant groups present their activities, and judges and public audiences sit in on here meetings.
  • Central presentation meeting
    • The central presentation meeting is held in each February, the energy conservation month.
    • Each presentation meeting is held for two days at the same location as ENEX (an exhibition) in Tokyo and Osaka.
    • Prize-winning cases (57 cases in 2003F.Y.) were presented (the Minister of Economy, Trade and Industry Prize and the Chief of the Agency of Natural Resources and Energy Prize are given in both locations, and others are given in only one location).
    • The total number of audience was 1,830 (1,030 in Tokyo, 800 in Osaka).
    • Attendance at the meeting and a question-and-answer session is free of charge.
    • Besides details of technology, approaches to and ideas for how to push forward with improvements can be obtained.
    • All cases can be seen on ECC's net-site (eccj.or.jp/dbenecon/search.jsp?MENU=1)
Energy conservation check item (factory, building)
Energy conservation measure for factories (Energy Conservation Guidebook for Factories 2003-3)
2 Check item for energy conservation measure for factories -1
3 Check item for energy conservation measure for factories -2
4 Check item for energy conservation measure for factories -3
5 Check item for energy conservation measure for factories -4
Energy conservation measure for buildings (Energy Conservation Guidebook for Buildings 2004-3)
6 Check item for energy conservation measure for buildings -1
7 Check item for energy conservation measure for buildings -2
8 Check item for energy conservation measure for buildings -3
Check item for energy conservation measure for factories -1
General administrative matter
  1. Energy management system
    • Organization improvement, human resource development
    • Compatibility with environmental management
    • Energy conservation target, investment budget
    • Long- and medium-range plans
    • Adoption of official preferential treatment systems
    • State of implementation of energy conservation
  2. State of implementation of measurement / recording; state of installation and employment of measuring instruments
    • State of maintenance, inspection of measuring instruments
    • State of implementation of periodic measurements and recording
  3. State of facility and equipment maintenance
    • Periodic inspection, routine inspection
    • Repairing of leaks (water, air, steam)
    • Heat insulation, insulation
    • Facility and equipment cleaning (filter, strainer), etc.
  4. Management of energy consumption
    • State of keeping daily reports
    • Daily consumption, daily load variation curves
    • Monthly consumption, ratio to the consumption of the preceding year graphs
  5. Energy unit consumption management for major products
    • Energy unit consumption versus delivery price
    • Energy unit consumption versus production amount
  6. Environmental conservation related management
    • State of implementation of measured for reducing CO2 emission
    • State of utilizing the Law for Promoting Energy Conservation and Recycling
    • State of LCA (Life Cycle Assessment)
    • Waste treatment: state of promotion of waste reduction, sorting and recycling
    • Wastewater treatment
  7. Improvement of processes
    • Improvement of processes
    • Reviewal of the factory line
    • Realization of continuous operation, efficiency improvement
Check item for energy conservation measure for factories -2
Air conditioning, refrigeration facility
  1. Operation management
    • Optimization of set temperature and humidity
    • Reduction of outdoor air for ventilation
    • Start and stop control of heat generating machines
    • Adjustment of cooled water outlet set temperature
    • Scheduled operation
    • Prevention of outdoor air intrusion, state of ventilation
    • Shielding of radiation heat from high-temperature machines
  2. Energy conservation measure, improvement of building insulation, shielding of solar insolation
    • Utilization of outdoor air
    • Recovery and utilization of waste heat, heat pump
    • Rotation control (VAV, etc.) of transportation machines (pumps, fans)
    • Adoption of local cleaning, local exhaust
    • Stratified air conditioning, reduction of air volume to be conditioned
    • Utilization of the ice thermal storage system
  3. Operation management of cooling facilities, operation power of refrigerator
    • Inlet and outlet pressures of the refrigerant
    • Inlet and outlet temperature and pressure of water
  4. Operation management of auxiliary facilities, operation power of the cooling tower
    • Water quality control (electric conductivity)
    • Operating power of pumps (capacity, head)
  5. Cold insulation, refrigerating facility, management on entering and exiting
    • Insulation management
    • Efficiency improvement
Pump, fan; compressor
  1. Operation management of pumps, fans
    • Opening and closing of valves
    • Improvement of routes (pining, ducts)
    • Operation flow rate, operation pressure
    • Degree of design allowance
    • Rotation control, start and stop control
  2. Operation management of the compressor systems
    • Reviewal of the type (screw, reciprocating, blower)
    • Compatibility between capacity and type
    • Reduction of discharge pressure and user-end pressure
    • Separation between high pressure and low pressure lines
    • Ventilation facility, ambient temperature
    • Reviewal of pipe size, piping route
    • Installation of air receiver
    • Start and stop control
    • Optimum capacity control
    • Leak prevention measure
    • Utilization of waste heat
9/13
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