Discussion on energy saving optimization of supercritical secondary reheat unit

It aimed at the secondary reheat ultra-supercritical unit to study the direction of energy saving, through comparing the design reasonable optimization and energy saving, improve the cycle thermal efficiency, reduce the coal consumption, achieve the goal of saving energy and reducing consumption. Fr...

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Main Authors: Li Wei, Jia Changwu, Ma Kuiyuan, Cong Ming, Chen Zenghui
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:ITM Web of Conferences
Subjects:
Online Access:https://www.itm-conferences.org/articles/itmconf/pdf/2022/07/itmconf_cccar2022_03043.pdf
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author Li Wei
Jia Changwu
Ma Kuiyuan
Cong Ming
Chen Zenghui
author_facet Li Wei
Jia Changwu
Ma Kuiyuan
Cong Ming
Chen Zenghui
author_sort Li Wei
collection DOAJ
description It aimed at the secondary reheat ultra-supercritical unit to study the direction of energy saving, through comparing the design reasonable optimization and energy saving, improve the cycle thermal efficiency, reduce the coal consumption, achieve the goal of saving energy and reducing consumption. From the traditional heat extraction scheme, by setting the cooler, increase the heat series to design a new solution method, such as energy saving optimization scheme of different performance, investment, such as comparative analysis, finally to determine the best solution. Through the design of a series of studies show that for secondary reheat ultra-supercritical unit, can adopt the following means to improve the efficiency of generating units: one is to increase external steam cooler, make full use of the extraction period of heat; The second is to increase the steam recovery series and rationally distribute the enthalpy drops at all levels. After the above energy-saving optimization and transformation technology, the generating efficiency of the unit is increased by 1.6%, and the coal consumption of power supply is reduced by 6.6g/kWh, achieving a good energy-saving effect.
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spelling doaj.art-f488be2c3459474cb46ff55fe30661992022-12-22T02:40:52ZengEDP SciencesITM Web of Conferences2271-20972022-01-01470304310.1051/itmconf/20224703043itmconf_cccar2022_03043Discussion on energy saving optimization of supercritical secondary reheat unitLi Wei0Jia Changwu1Ma Kuiyuan2Cong Ming3Chen Zenghui4Datang Dongying Power Generation Co. LtdDatang Dongying Power Generation Co. LtdDatang Northeast Electric Power Test Research Institute Co. LtdDatang Northeast Electric Power Test Research Institute Co. LtdDatang Dongying Power Generation Co. LtdIt aimed at the secondary reheat ultra-supercritical unit to study the direction of energy saving, through comparing the design reasonable optimization and energy saving, improve the cycle thermal efficiency, reduce the coal consumption, achieve the goal of saving energy and reducing consumption. From the traditional heat extraction scheme, by setting the cooler, increase the heat series to design a new solution method, such as energy saving optimization scheme of different performance, investment, such as comparative analysis, finally to determine the best solution. Through the design of a series of studies show that for secondary reheat ultra-supercritical unit, can adopt the following means to improve the efficiency of generating units: one is to increase external steam cooler, make full use of the extraction period of heat; The second is to increase the steam recovery series and rationally distribute the enthalpy drops at all levels. After the above energy-saving optimization and transformation technology, the generating efficiency of the unit is increased by 1.6%, and the coal consumption of power supply is reduced by 6.6g/kWh, achieving a good energy-saving effect.https://www.itm-conferences.org/articles/itmconf/pdf/2022/07/itmconf_cccar2022_03043.pdfsecondary reheatthermal systemexternal steam cooleroptimization of regenerative seriesenergy saving effect
spellingShingle Li Wei
Jia Changwu
Ma Kuiyuan
Cong Ming
Chen Zenghui
Discussion on energy saving optimization of supercritical secondary reheat unit
ITM Web of Conferences
secondary reheat
thermal system
external steam cooler
optimization of regenerative series
energy saving effect
title Discussion on energy saving optimization of supercritical secondary reheat unit
title_full Discussion on energy saving optimization of supercritical secondary reheat unit
title_fullStr Discussion on energy saving optimization of supercritical secondary reheat unit
title_full_unstemmed Discussion on energy saving optimization of supercritical secondary reheat unit
title_short Discussion on energy saving optimization of supercritical secondary reheat unit
title_sort discussion on energy saving optimization of supercritical secondary reheat unit
topic secondary reheat
thermal system
external steam cooler
optimization of regenerative series
energy saving effect
url https://www.itm-conferences.org/articles/itmconf/pdf/2022/07/itmconf_cccar2022_03043.pdf
work_keys_str_mv AT liwei discussiononenergysavingoptimizationofsupercriticalsecondaryreheatunit
AT jiachangwu discussiononenergysavingoptimizationofsupercriticalsecondaryreheatunit
AT makuiyuan discussiononenergysavingoptimizationofsupercriticalsecondaryreheatunit
AT congming discussiononenergysavingoptimizationofsupercriticalsecondaryreheatunit
AT chenzenghui discussiononenergysavingoptimizationofsupercriticalsecondaryreheatunit