Taking a certain subcritical 330 MW turbine as the research object
the linearization analysis method is used to analyze and calculate the influence of the efficiency change of high pressure cylinder
medium pressure cylinder and low pressure cylinder on the heat consumption
and get its rule. The results show that the influence of high pressure cylinder is the least and the influence of low pressure cylinder is the largest. With the decrease of load
the effect of high pressure cylinder efficiency change on heat consumption increases gradually
and the change of medium and low pressure cylinder efficiency change has little effect on heat consumption. The effect of cylinder efficiency on heat consumption is mainly realized by power change and system heat absorption. The effect of power change on heat consumption is significant