Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit
The pressure drop of a main steam and reheat steam system should be optimized during the design and operation of a thermal power plant to minimize operation costs. In this study, the pressure drop of the main steam pipe and reheat steam pipe of a 1000 MW secondary reheat unit are optimized by modula...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/9/3279 |
| _version_ | 1827672737182646272 |
|---|---|
| author | Yanfeng Li Jingru Liu Guohe Huang |
| author_facet | Yanfeng Li Jingru Liu Guohe Huang |
| author_sort | Yanfeng Li |
| collection | DOAJ |
| description | The pressure drop of a main steam and reheat steam system should be optimized during the design and operation of a thermal power plant to minimize operation costs. In this study, the pressure drop of the main steam pipe and reheat steam pipe of a 1000 MW secondary reheat unit are optimized by modulating the operation parameters and the cost of operation is explored. Optimal pipe specifications were achieved by selecting a bend pipe and optimizing the pipe specifications. The pressure loss of the main steam pipeline was optimized to 2.61% compared with the conventional pressure drop (5%), the heat consumption of steam turbine was reduced by about 0.63 kJ/(kW·h), the standard coal consumption was minimized by about 0.024 g/(kW·h), and the total income in 20 years is approximated to be CNY 217,700. The primary reheat system was optimized to 4.88%, the steam turbine heat consumption was reduced by about 7.13 kJ/(kW·h), the standard coal consumption decreased by about 0.276 g/(kW·h), and the total income in 20 years is projected to be CNY 20.872 million after the optimization of the pressure drop. The secondary reheat system was optimized to 8.13%, the steam turbine heat consumption was reduced by about 7.86 kJ/(kW·h), the standard coal consumption decreased by about 0.304 g/(kW·h), and the total income in 20 years is projected to be CNY 22.7232 million after the optimization of the pressure drop. The research results of the present study provide a guide for the design and operation of secondary reheat units to achieve an effective operation and minimize costs. |
| first_indexed | 2024-03-10T04:12:30Z |
| format | Article |
| id | doaj.art-c8cfb0984765444cac39b701e412fb1b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T04:12:30Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c8cfb0984765444cac39b701e412fb1b2023-11-23T08:09:03ZengMDPI AGEnergies1996-10732022-04-01159327910.3390/en15093279Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat UnitYanfeng Li0Jingru Liu1Guohe Huang2MOE Key Laboratory of Regional Energy and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, ChinaShandong Electric Power Engineering Consulting Institute Corp., Ltd., Jinan 250013, ChinaMOE Key Laboratory of Regional Energy and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, ChinaThe pressure drop of a main steam and reheat steam system should be optimized during the design and operation of a thermal power plant to minimize operation costs. In this study, the pressure drop of the main steam pipe and reheat steam pipe of a 1000 MW secondary reheat unit are optimized by modulating the operation parameters and the cost of operation is explored. Optimal pipe specifications were achieved by selecting a bend pipe and optimizing the pipe specifications. The pressure loss of the main steam pipeline was optimized to 2.61% compared with the conventional pressure drop (5%), the heat consumption of steam turbine was reduced by about 0.63 kJ/(kW·h), the standard coal consumption was minimized by about 0.024 g/(kW·h), and the total income in 20 years is approximated to be CNY 217,700. The primary reheat system was optimized to 4.88%, the steam turbine heat consumption was reduced by about 7.13 kJ/(kW·h), the standard coal consumption decreased by about 0.276 g/(kW·h), and the total income in 20 years is projected to be CNY 20.872 million after the optimization of the pressure drop. The secondary reheat system was optimized to 8.13%, the steam turbine heat consumption was reduced by about 7.86 kJ/(kW·h), the standard coal consumption decreased by about 0.304 g/(kW·h), and the total income in 20 years is projected to be CNY 22.7232 million after the optimization of the pressure drop. The research results of the present study provide a guide for the design and operation of secondary reheat units to achieve an effective operation and minimize costs.https://www.mdpi.com/1996-1073/15/9/32791000 MW secondary reheat unitmain steam and reheat steam systempressure drop optimization |
| spellingShingle | Yanfeng Li Jingru Liu Guohe Huang Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit Energies 1000 MW secondary reheat unit main steam and reheat steam system pressure drop optimization |
| title | Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit |
| title_full | Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit |
| title_fullStr | Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit |
| title_full_unstemmed | Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit |
| title_short | Pressure Drop Optimization of the Main Steam and Reheat Steam System of a 1000 MW Secondary Reheat Unit |
| title_sort | pressure drop optimization of the main steam and reheat steam system of a 1000 mw secondary reheat unit |
| topic | 1000 MW secondary reheat unit main steam and reheat steam system pressure drop optimization |
| url | https://www.mdpi.com/1996-1073/15/9/3279 |
| work_keys_str_mv | AT yanfengli pressuredropoptimizationofthemainsteamandreheatsteamsystemofa1000mwsecondaryreheatunit AT jingruliu pressuredropoptimizationofthemainsteamandreheatsteamsystemofa1000mwsecondaryreheatunit AT guohehuang pressuredropoptimizationofthemainsteamandreheatsteamsystemofa1000mwsecondaryreheatunit |