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- W2360391938 abstract "Exergy value is a variable relating to the environment temperature,which changes with time and space.With the environment temperature(i.e.dynamic-state reference temperature) serving as the reference point,the authors calculated relevant exergy values of the recuperator system of a domestically-made 300 MW subcritical unit,600 MW and 1 000 MW supercritical unit.On this basis,the exergy efficiencies of the heaters in the recuperator systems were calculated by utilizing the exergy efficiency matrix equation and the influence of the dynamic-state reference temperature on the change in the exergy efficiency of the heater in the recuperator system was also analyzed.With an increase of the reference temperature,the exergy efficiencies of various heaters invariably decrease while the lower the steam extraction pressure,the more the exergy efficiency decreases.The exergy efficiencies of NO.8 heaters of various units decrease maximally.For No.8 heaters of various units,when △Tjz=20℃,△η will be-37.12%(300MW unit),-32.6%(600MW unit),-20.51%(1000 MW unit) respectively.With an increase in the capacity of the units,△η assumes a descending tendency.This can offer reference for selecting the dynamic-state reference point of a recuperator system,even a whole unit for exergy analysis." @default.
- W2360391938 created "2016-06-24" @default.
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- W2360391938 date "2012-01-01" @default.
- W2360391938 modified "2023-09-23" @default.
- W2360391938 title "Analysis of the Influence of the Dynamic-state Reference Temperature on the Exergy Efficiency of the Heater in a Recuperator System" @default.
- W2360391938 hasPublicationYear "2012" @default.
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