ECCJ / Text / Thailand / Appendix 3-1 / Standards for Judgment by Enterprises for Streamlining of Energy Use at Plants and Implementation Businesses

ECCJ / Text

Thailand

4-2 Cogeneration facilities

(1) Management of cogeneration facilities
1. Management standards shall be implemented for the management of multiple boilers, gas turbines, steam turbines, gas engines, diesel engines, and similar equipment used by cogeneration facilities to increase overall efficiency based on changes in load so that sufficient use is made of heat and electric power generated.
2. For bleed-gas turbines or back-pressure turbines for cogeneration facilities, management standards shall be implemented for the minimum tolerable value of extraction pressure for bleed-gas turbines or back pressure for back-pressure turbines.

(2) Measurement and recording of matters for cogeneration facilities
1. For boilers, gas turbines, steam turbines, gas engines, diesel engines, and similar equipment used for cogeneration facilities, management standards shall be implemented for measuring and recording thermal efficiency based on changes in load, and regular measurements shall be made and results recorded based on standards.
2. For the operation of bleed-gas turbines or back-pressure turbines at a pressure close to the minimum tolerable extraction pressure or back pressure, management standards shall be implemented for measuring and recording matters including operating time, inlet pressure, extraction pressure, or back pressure, outlet pressure, and steam feed, and such matters shall be regularly measured and results be recorded based on standards.

(3) Maintenance and inspection of cogeneration facilities
- For cogeneration facilities, management standards for maintenance and inspection to maintain high thermal efficiency shall be implemented, and regular maintenance and inspection shall be conducted based on standards.

(4) Measures for new installation of cogeneration facilities
- For installing new cogeneration facilities, appropriate consideration shall be given to past demand for heat and electric power and projected trends to verify that sufficient use can be made of waste heat and electric power over the year as a whole, and cogeneration facilities of a suitable scale and capacity shall be implemented.

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