Steady-State Operation Characteristics of 100 MW Class Steam Turbine System
[Introduction] To effectively improve the cycle efficiency, the Integrated Gasification Combined Cycle (IGCC) power generation system has received extensive attention due to its advantages of high thermal efficiency, low pollution, and flexible operation. The waste heat boiler and the steam turbine...
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Energy Observer Magazine Co., Ltd.
2022-09-01
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| Series: | 南方能源建设 |
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| Online Access: | https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.03.013 |
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| author | Lin JIANG Haoran YANG Ziyan GUO Shuang LIU Jieyu ZHANG Zhanping HUANG Xing ZHOU |
| author_facet | Lin JIANG Haoran YANG Ziyan GUO Shuang LIU Jieyu ZHANG Zhanping HUANG Xing ZHOU |
| author_sort | Lin JIANG |
| collection | DOAJ |
| description | [Introduction] To effectively improve the cycle efficiency, the Integrated Gasification Combined Cycle (IGCC) power generation system has received extensive attention due to its advantages of high thermal efficiency, low pollution, and flexible operation. The waste heat boiler and the steam turbine together constitute the bottom cycle of the system. [Method] Mainly combined with energy balance and thermodynamic calculation formula, using MATLAB for modeling operations, the effect of changes in steam flow, feed water temperature, superheated steam temperature, and reheat steam temperature on the steam turbine output power, thermal efficiency, and the total steam endothermic load was studied. At the same time, under the condition of steady-state operation, the working principle of the bottom cycle and the mass transfer and heat transfer process were analyzed. [Result] The results show that increasing the high-pressure steam flow and reducing the low-pressure steam flow can make the steam turbine output higher power under the premise of higher thermal efficiency. Under the optimized operating parameters, the endothermic load is reduced by 45.7 kW compared with the reference operating condition, and the thermal efficiency is increased from 23.82% to 26.92%. [Conclusion] The higher the temperature of high-pressure superheated steam and reheated steam, the higher the thermal efficiency of the steam turbine system, but the change range of heat absorption load and output power is very small. It can appropriately increase the temperature of high-pressure superheated steam and reheated steam, which is conducive to improving the thermal efficiency of the steam turbine. |
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| institution | Directory Open Access Journal |
| issn | 2095-8676 |
| language | English |
| last_indexed | 2024-04-09T21:03:28Z |
| publishDate | 2022-09-01 |
| publisher | Energy Observer Magazine Co., Ltd. |
| record_format | Article |
| series | 南方能源建设 |
| spelling | doaj.art-d2897bfb8b0a47129f7e1958881863442023-03-29T05:41:35ZengEnergy Observer Magazine Co., Ltd.南方能源建设2095-86762022-09-019311111810.16516/j.gedi.issn2095-8676.2022.03.0132022-097Steady-State Operation Characteristics of 100 MW Class Steam Turbine SystemLin JIANG0Haoran YANG1Ziyan GUO2Shuang LIU3Jieyu ZHANG4Zhanping HUANG5Xing ZHOU6Sanhe Power Generation Ltd., Langfang 065201, Hebei, ChinaCollege of Zhongran, Hebei Normal University, Shijiazhuang 050024, Hebei, ChinaCollege of Zhongran, Hebei Normal University, Shijiazhuang 050024, Hebei, ChinaCollege of Zhongran, Hebei Normal University, Shijiazhuang 050024, Hebei, ChinaCollege of Zhongran, Hebei Normal University, Shijiazhuang 050024, Hebei, ChinaCollege of Zhongran, Hebei Normal University, Shijiazhuang 050024, Hebei, ChinaCollege of Zhongran, Hebei Normal University, Shijiazhuang 050024, Hebei, China[Introduction] To effectively improve the cycle efficiency, the Integrated Gasification Combined Cycle (IGCC) power generation system has received extensive attention due to its advantages of high thermal efficiency, low pollution, and flexible operation. The waste heat boiler and the steam turbine together constitute the bottom cycle of the system. [Method] Mainly combined with energy balance and thermodynamic calculation formula, using MATLAB for modeling operations, the effect of changes in steam flow, feed water temperature, superheated steam temperature, and reheat steam temperature on the steam turbine output power, thermal efficiency, and the total steam endothermic load was studied. At the same time, under the condition of steady-state operation, the working principle of the bottom cycle and the mass transfer and heat transfer process were analyzed. [Result] The results show that increasing the high-pressure steam flow and reducing the low-pressure steam flow can make the steam turbine output higher power under the premise of higher thermal efficiency. Under the optimized operating parameters, the endothermic load is reduced by 45.7 kW compared with the reference operating condition, and the thermal efficiency is increased from 23.82% to 26.92%. [Conclusion] The higher the temperature of high-pressure superheated steam and reheated steam, the higher the thermal efficiency of the steam turbine system, but the change range of heat absorption load and output power is very small. It can appropriately increase the temperature of high-pressure superheated steam and reheated steam, which is conducive to improving the thermal efficiency of the steam turbine.https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.03.013igccbottom circulationsteam turbinevariable conditionthermal efficiency |
| spellingShingle | Lin JIANG Haoran YANG Ziyan GUO Shuang LIU Jieyu ZHANG Zhanping HUANG Xing ZHOU Steady-State Operation Characteristics of 100 MW Class Steam Turbine System 南方能源建设 igcc bottom circulation steam turbine variable condition thermal efficiency |
| title | Steady-State Operation Characteristics of 100 MW Class Steam Turbine System |
| title_full | Steady-State Operation Characteristics of 100 MW Class Steam Turbine System |
| title_fullStr | Steady-State Operation Characteristics of 100 MW Class Steam Turbine System |
| title_full_unstemmed | Steady-State Operation Characteristics of 100 MW Class Steam Turbine System |
| title_short | Steady-State Operation Characteristics of 100 MW Class Steam Turbine System |
| title_sort | steady state operation characteristics of 100 mw class steam turbine system |
| topic | igcc bottom circulation steam turbine variable condition thermal efficiency |
| url | https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.03.013 |
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