The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units
In order to study the effect of coupled molten salt thermal storage system on thermal economy and peaking performance of thermal power units under the condition of simultaneous supply of industrial steam and heating steam, Ebsilon software was used to model a 300 MW subcritical unit with coupled mol...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of XPU
2024-10-01
|
| Series: | Xi'an Gongcheng Daxue xuebao |
| Subjects: | |
| Online Access: | http://journal.xpu.edu.cn/en/#/digest?ArticleID=1504 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850134877377134592 |
|---|---|
| author | LI Hongbo WANG Shun JING Rui JIA Zhenguo GUAN Hongjun HE Suoying ZHANG Liqiang GAO Ming |
| author_facet | LI Hongbo WANG Shun JING Rui JIA Zhenguo GUAN Hongjun HE Suoying ZHANG Liqiang GAO Ming |
| author_sort | LI Hongbo |
| collection | DOAJ |
| description | In order to study the effect of coupled molten salt thermal storage system on thermal economy and peaking performance of thermal power units under the condition of simultaneous supply of industrial steam and heating steam, Ebsilon software was used to model a 300 MW subcritical unit with coupled molten salt thermal storage system, focusing on the unit supplying industrial steam and heating steam simultaneously. The cycle thermal efficiency, peaking capacity, and molten salt flow rate of eight thermal storage/release scenarios were comparatively investigated. The results show that during the thermal storage process, Scenario 3 and Scenario 6 have the highest cycle thermal efficiency of 25.77%, and Scenario 7 and Scenario 8 have the highest peaking capacity of 50 MW. During the thermal release process, the highest cycle thermal efficiency and peaking capacity of the unit are achieved when the thermal release method uses preheated feedwater, which is 33.50% and 16.85 MW, respectively. During the thermal storage/release cycle, Scenario 3 has the highest cycle thermal efficiency of 29.64% and Scenario 7 has the largest peaking capacity of 66.85 MW. Combining indicators across programs, Scheme 7 is the optimal thermal storage/release scheme for this unit under the condition of supplying industrial steam and heating steam at the same time. This study can provide theoretical guidance for the peaking process of thermal power units coupled with molten salt thermal storage system. |
| format | Article |
| id | doaj-art-26cb06ab4fbc4bc5aed82c1e978d8c38 |
| institution | OA Journals |
| issn | 1674-649X |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Office of Journal of XPU |
| record_format | Article |
| series | Xi'an Gongcheng Daxue xuebao |
| spelling | doaj-art-26cb06ab4fbc4bc5aed82c1e978d8c382025-08-20T02:31:37ZzhoEditorial Office of Journal of XPUXi'an Gongcheng Daxue xuebao1674-649X2024-10-013859310110.13338/j.issn.1674-649x.2024.05.012The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power unitsLI Hongbo0WANG Shun1JING Rui2JIA Zhenguo3GUAN Hongjun4HE Suoying5ZHANG Liqiang6GAO Ming7Sinopec Shengli Petroleum Administration Co. Ltd., Dongying 257000, Shandong, ChinaShandong Engineering Research Center for High-Efficiency Energy Storage and Hydrogen Energy Utilization/School of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaLaicheng Power Plant, Huadian Power International Co. Ltd., Jinan 271100, ChinaShengli Power Plant, Sinopec Shengli Petroleum Administration Co. Ltd., Dongying 257087, Shandong, ChinaShengli Power Plant, Sinopec Shengli Petroleum Administration Co. Ltd., Dongying 257087, Shandong, ChinaShandong Engineering Research Center for High-Efficiency Energy Storage and Hydrogen Energy Utilization/School of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaShandong Engineering Research Center for High-Efficiency Energy Storage and Hydrogen Energy Utilization/School of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaShandong Engineering Research Center for High-Efficiency Energy Storage and Hydrogen Energy Utilization/School of Energy and Power Engineering, Shandong University, Jinan 250061, ChinaIn order to study the effect of coupled molten salt thermal storage system on thermal economy and peaking performance of thermal power units under the condition of simultaneous supply of industrial steam and heating steam, Ebsilon software was used to model a 300 MW subcritical unit with coupled molten salt thermal storage system, focusing on the unit supplying industrial steam and heating steam simultaneously. The cycle thermal efficiency, peaking capacity, and molten salt flow rate of eight thermal storage/release scenarios were comparatively investigated. The results show that during the thermal storage process, Scenario 3 and Scenario 6 have the highest cycle thermal efficiency of 25.77%, and Scenario 7 and Scenario 8 have the highest peaking capacity of 50 MW. During the thermal release process, the highest cycle thermal efficiency and peaking capacity of the unit are achieved when the thermal release method uses preheated feedwater, which is 33.50% and 16.85 MW, respectively. During the thermal storage/release cycle, Scenario 3 has the highest cycle thermal efficiency of 29.64% and Scenario 7 has the largest peaking capacity of 66.85 MW. Combining indicators across programs, Scheme 7 is the optimal thermal storage/release scheme for this unit under the condition of supplying industrial steam and heating steam at the same time. This study can provide theoretical guidance for the peaking process of thermal power units coupled with molten salt thermal storage system.http://journal.xpu.edu.cn/en/#/digest?ArticleID=1504thermal power unitmolten salt thermal storagethermal economypeak performanceindustrial steam supply |
| spellingShingle | LI Hongbo WANG Shun JING Rui JIA Zhenguo GUAN Hongjun HE Suoying ZHANG Liqiang GAO Ming The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units Xi'an Gongcheng Daxue xuebao thermal power unit molten salt thermal storage thermal economy peak performance industrial steam supply |
| title | The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units |
| title_full | The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units |
| title_fullStr | The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units |
| title_full_unstemmed | The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units |
| title_short | The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units |
| title_sort | effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units |
| topic | thermal power unit molten salt thermal storage thermal economy peak performance industrial steam supply |
| url | http://journal.xpu.edu.cn/en/#/digest?ArticleID=1504 |
| work_keys_str_mv | AT lihongbo theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT wangshun theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT jingrui theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT jiazhenguo theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT guanhongjun theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT hesuoying theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT zhangliqiang theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT gaoming theeffectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT lihongbo effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT wangshun effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT jingrui effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT jiazhenguo effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT guanhongjun effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT hesuoying effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT zhangliqiang effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits AT gaoming effectofmoltensaltthermalstorageschemeonthermaleconomyandpeakingperformanceofthermalpowerunits |