Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units
[Introduction] To realize the demand of further expanding the thermal power ratio of coal-fired power generating units, coupled waste heat utilization technology combined with the characteristics of the original units has become one of the effective ways. There are great differences in the adaptive...
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| Format: | Article |
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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.issn2095-8676.2022.03.009 |
| _version_ | 1797857844533395456 |
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| author | Minghui ZHENG Ruijing LIU Xue WANG Han ZHAO Yun HU Xiang WANG |
| author_facet | Minghui ZHENG Ruijing LIU Xue WANG Han ZHAO Yun HU Xiang WANG |
| author_sort | Minghui ZHENG |
| collection | DOAJ |
| description | [Introduction] To realize the demand of further expanding the thermal power ratio of coal-fired power generating units, coupled waste heat utilization technology combined with the characteristics of the original units has become one of the effective ways. There are great differences in the adaptive characteristics and regulation capacity of the existing waste heat utilization technology. [Method] Several waste heat recovery and utilization methods were comprehensively reviewed and their principles, advantages and disadvantages were compared. Then the current focus of waste heat recovery technology was further reviewed by introducing common evaluation indicators. [Result] For waste heat recovery and utilization technology, there are mainly flue gas waste heat recovery, recycling water waste heat recovery, air source waste heat recovery, industrial waste gas recovery, and so on. The temperature ranges are 120～150 ℃, 15～35 ℃, 0～60 ℃, and below 300 ℃, respectively. The evaluation methods of coupled waste heat utilization technology mainly include performance evaluation, economic evaluation, and system parameter correlation evaluation, among which the evaluation parameters such as heat consumption and thermal efficiency are the main ones. [Conclusion] The development direction and relevant suggestions of waste heat recovery and utilization technology are pointed out. At present, coupled waste heat recovery and utilization technology is mainly used in the heat pump system. Under the demand for a higher thermal power ratio in the future, the low-pressure cylinder transformation technology using cold end waste heat heating will become a major development focus. |
| first_indexed | 2024-04-09T21:03:23Z |
| format | Article |
| id | doaj.art-bf386ad94d3944adb6de98b93f9fe37c |
| institution | Directory Open Access Journal |
| issn | 2095-8676 |
| language | English |
| last_indexed | 2024-04-09T21:03:23Z |
| publishDate | 2022-09-01 |
| publisher | Energy Observer Magazine Co., Ltd. |
| record_format | Article |
| series | 南方能源建设 |
| spelling | doaj.art-bf386ad94d3944adb6de98b93f9fe37c2023-03-29T05:41:35ZengEnergy Observer Magazine Co., Ltd.南方能源建设2095-86762022-09-0193808710.16516/j.gedi.issn2095-8676.2022.03.0092022-056Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating UnitsMinghui ZHENG0Ruijing LIU1Xue WANG2Han ZHAO3Yun HU4Xiang WANG5School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, 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, ChinaThe 6th Research Institute of China Electronice Corporation, Beijing 102209, China[Introduction] To realize the demand of further expanding the thermal power ratio of coal-fired power generating units, coupled waste heat utilization technology combined with the characteristics of the original units has become one of the effective ways. There are great differences in the adaptive characteristics and regulation capacity of the existing waste heat utilization technology. [Method] Several waste heat recovery and utilization methods were comprehensively reviewed and their principles, advantages and disadvantages were compared. Then the current focus of waste heat recovery technology was further reviewed by introducing common evaluation indicators. [Result] For waste heat recovery and utilization technology, there are mainly flue gas waste heat recovery, recycling water waste heat recovery, air source waste heat recovery, industrial waste gas recovery, and so on. The temperature ranges are 120～150 ℃, 15～35 ℃, 0～60 ℃, and below 300 ℃, respectively. The evaluation methods of coupled waste heat utilization technology mainly include performance evaluation, economic evaluation, and system parameter correlation evaluation, among which the evaluation parameters such as heat consumption and thermal efficiency are the main ones. [Conclusion] The development direction and relevant suggestions of waste heat recovery and utilization technology are pointed out. At present, coupled waste heat recovery and utilization technology is mainly used in the heat pump system. Under the demand for a higher thermal power ratio in the future, the low-pressure cylinder transformation technology using cold end waste heat heating will become a major development focus.https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.03.009coal-fired power generating unitthermal power ratiocoupled waste heat utilization technologytechnical and economic evaluationdevelopment direction |
| spellingShingle | Minghui ZHENG Ruijing LIU Xue WANG Han ZHAO Yun HU Xiang WANG Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units 南方能源建设 coal-fired power generating unit thermal power ratio coupled waste heat utilization technology technical and economic evaluation development direction |
| title | Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units |
| title_full | Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units |
| title_fullStr | Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units |
| title_full_unstemmed | Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units |
| title_short | Research Progress of Coupled Waste Heat Utilization Technology for Coal-Fired Power Generating Units |
| title_sort | research progress of coupled waste heat utilization technology for coal fired power generating units |
| topic | coal-fired power generating unit thermal power ratio coupled waste heat utilization technology technical and economic evaluation development direction |
| url | https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.03.009 |
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