A new method of energy degradation on-line analysis for coal-fired unit—expansion line approximating method

An energy degradation analysis process of unit and thermal system for coal-fired power plant under condition at discretion is discussed when load has been changed greatly in this paper. A new method of expansion line approximating method, which can rationally calculate the quantity of every component of energy degradation and identify the places where energy degradations arise, is put forward. In addition, the quality of every component of energy degradation is also discussed.