Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load
With the increasing integration of renewable energy generation into the power grid, coal-fired power plants are compelled to engage in deep load regulation. The dynamic characteristics and energy consumption of coal-fired units operating at ultra-low loads have emerged as significant concerns. In th...
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| Format: | Article |
| Language: | English |
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AIDIC Servizi S.r.l.
2024-12-01
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| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/14982 |
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| author | Xiaoyang Hu Baihui Liu Zheng Jing Binbin Qiu Zhu Wang Jingshi Wang Junjie Yan |
| author_facet | Xiaoyang Hu Baihui Liu Zheng Jing Binbin Qiu Zhu Wang Jingshi Wang Junjie Yan |
| author_sort | Xiaoyang Hu |
| collection | DOAJ |
| description | With the increasing integration of renewable energy generation into the power grid, coal-fired power plants are compelled to engage in deep load regulation. The dynamic characteristics and energy consumption of coal-fired units operating at ultra-low loads have emerged as significant concerns. In this study, a dynamic simulation model for the wide-load operation of a 1,000 MW ultra-supercritical coal-fired unit was established using GSE software. The model can simulate the operational process of the unit within the load range of 150-1,000 MW. This study initially analyses the dynamic characteristics of the unit load-up process, taking the intervals of 150-320 MW and 830-1,000 MW as examples. Subsequently, a comparative analysis is conducted on the energy consumption levels under different intervals and load-up rates. The results indicate that during the load-up process, 260 MW is the turning point at which the water wall operation state transitions from wet to dry. Under a load-up rate of 5 MW/min, as the load interval gradually increases, the total coal supply during the load-up process increases from 66.08 t to 195.83 t. Within the range of 830-1,000 MW, when the load-up rate rises from 5 MW/min to 15 MW/min, the total coal supply throughout this process decreases from 195.83 t to 67.86 t. This established model holds significance for optimizing energy consumption levels during wide-load operation processes of units by providing insights into their dynamic behaviour under varying loads. |
| format | Article |
| id | doaj-art-d4a0fab6983b4133b339daf7cb547a01 |
| institution | OA Journals |
| issn | 2283-9216 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj-art-d4a0fab6983b4133b339daf7cb547a012025-08-20T02:35:18ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162024-12-01114Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load Xiaoyang HuBaihui LiuZheng JingBinbin QiuZhu WangJingshi WangJunjie YanWith the increasing integration of renewable energy generation into the power grid, coal-fired power plants are compelled to engage in deep load regulation. The dynamic characteristics and energy consumption of coal-fired units operating at ultra-low loads have emerged as significant concerns. In this study, a dynamic simulation model for the wide-load operation of a 1,000 MW ultra-supercritical coal-fired unit was established using GSE software. The model can simulate the operational process of the unit within the load range of 150-1,000 MW. This study initially analyses the dynamic characteristics of the unit load-up process, taking the intervals of 150-320 MW and 830-1,000 MW as examples. Subsequently, a comparative analysis is conducted on the energy consumption levels under different intervals and load-up rates. The results indicate that during the load-up process, 260 MW is the turning point at which the water wall operation state transitions from wet to dry. Under a load-up rate of 5 MW/min, as the load interval gradually increases, the total coal supply during the load-up process increases from 66.08 t to 195.83 t. Within the range of 830-1,000 MW, when the load-up rate rises from 5 MW/min to 15 MW/min, the total coal supply throughout this process decreases from 195.83 t to 67.86 t. This established model holds significance for optimizing energy consumption levels during wide-load operation processes of units by providing insights into their dynamic behaviour under varying loads.https://www.cetjournal.it/index.php/cet/article/view/14982 |
| spellingShingle | Xiaoyang Hu Baihui Liu Zheng Jing Binbin Qiu Zhu Wang Jingshi Wang Junjie Yan Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load Chemical Engineering Transactions |
| title | Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load |
| title_full | Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load |
| title_fullStr | Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load |
| title_full_unstemmed | Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load |
| title_short | Study on Dynamic Characteristics and Energy Consumption Characteristics of Ultra-supercritical Units Operating at Wide-Load |
| title_sort | study on dynamic characteristics and energy consumption characteristics of ultra supercritical units operating at wide load |
| url | https://www.cetjournal.it/index.php/cet/article/view/14982 |
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