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ECCJ / AOTS Malaysia training course Malaysia

2 Composition of judgment criteria
2 Composition of judgment criteria
6 Fields of Judgment Criteria (Reference Part)
    1. Rationalization of fuel combustion
    2. Rationalization of heating, cooling and thermal transmission
    2-1 Heating equipment, etc.
    2-2 Air conditioning equipment, hot water supply equipment, etc
    3. Recovering of discharged heat
    4. Rationalization of conversion from heat to power, etc.
    4-1 Equipment used only for power generation
    4-2 Co-generation equipment
    5. Prevent loss of heat due to radiation, thermal conduction,
    resistance, etc.
    5-1 Prevent loss of heat due to radiation, thermal conduction, etc. 5-2 Prevent loss of heat due to resistance, etc.
    6. Rationalization of conversion from electricity to power, heat, etc.
    6-1 Electric power equipment, electric heating equipment, etc.
    6-2 Lighting equipment, elevators, office equipment, consumer products, etc.
Obligation to observe 4 items in each of 6 fields
    1. Management
      Decides points for implementing the operation and management according to features, functions, etc. and set the management value, standard value, time, etc.
    2. Measurement, recording
      Decide items to be measured and recorded, frequency of the measurement and recording, and implement them periodically.
    3. Maintenance, inspection
      Decide points for doing maintenance, inspection, etc. and implement periodic maintenance and inspection, and record the results.
    4. Measures for new installation
      Decide measures for new installation, renovation or renewal of equipment.
2.2 Energy intensity (or Energy unit consumption)
2.2 Energy intensity (or Energy unit consumption)
2.3 Judgment Criteria and Reference Data
    2.3.1 Rationalization of combustion
    (1) Management of fuel combustion
    1) Management of air ratio according to the combustion equipment and the type of fuel.
    2) The combustion equipment decreases the air ratio based on the separate table 1(A).
    3) When multiple pieces of combustion equipment are used, manage them in a way that increases thermal efficiency of the entire equipment.
    4) Manage the nature of fuel in a way that improves thermal efficiency.
concept of air ratio and efficiency(refrence)
Fuel saving by improving air ratio of boilers (Reference)
    - If air ratio is improved (oxygen% in discharged gas is reduced), fuel can be saved. The trial calculation in the right figure assumes that only discharged gas amount is reduced by lowering the air ratio (assuming that discharged gas temperature is 450).
    - There is little difference between 13A gas and A heavy oil as far as fuel reduction rate is concerned.
    - The trial calculation applied to the right figure assumes that the discharge gas temperature is 450. If the discharge gas temperature is low, the efficiency ratio also goes down.
    - (Example of use)
    If the discharged oxygen density can be reduced from 6% to 3%, fuel can be saved approximately 4% (on calculation).
Fuel saving by improving air ratio of boilers (Reference)
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