YANG Yu, FAN Shiwang, JIANG Jun, et al. Influence of heater on heat consumption rate of an ultra supercritical 1 000MW unit steam turbine[J]. Thermal power generation, 2016, 45(5): 79-83.
YANG Yu, FAN Shiwang, JIANG Jun, et al. Influence of heater on heat consumption rate of an ultra supercritical 1 000MW unit steam turbine[J]. Thermal power generation, 2016, 45(5): 79-83.DOI:
The energy level efficiency method was applied to carry out energy loss decoupling analysis for each stage heater in an ultra supercritical 1 000 MW unit steam turbine with echelon cycle(EC cycle).By introducing heat rate influence coefficient
the effect of each heater on reducing heat rate of the thermodynamic system under conditions of THA
75% of THA
50% of THA was obtained.The results show that
under the same working condition
the contribution of the heaters to reducing heat rate of the thermodynamic system decreases from low pressure stage to high pressure stage.Therefore
in thermodynamic systems
the effect of increasing the high pressure heaters on enhancing the system heat efficiency will turn little.The above analysis method and results can provide important references for design
optimization and application of the thermodynamic system with EC cycle.