Operation methods of rapid load changes for integrated coal gasification combined cycle power plants
The IGCC (integrated gasification combined cycle) is emerging as one of the most advanced and effective systems for electric energy generation. The IGCC consists of pressure vessels such as a gasifier, syngas cooler and gas cleanup unit with the large time constants, so dynamic response of the power...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2014-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0379/_pdf/-char/en |
| _version_ | 1797988680429731840 |
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| author | Yasuhiro YOSHIDA Tatsurou YASHIKI Fumihiko KISO Hirotsugu FUKUHARA Toshinori YASUTOMI |
| author_facet | Yasuhiro YOSHIDA Tatsurou YASHIKI Fumihiko KISO Hirotsugu FUKUHARA Toshinori YASUTOMI |
| author_sort | Yasuhiro YOSHIDA |
| collection | DOAJ |
| description | The IGCC (integrated gasification combined cycle) is emerging as one of the most advanced and effective systems for electric energy generation. The IGCC consists of pressure vessels such as a gasifier, syngas cooler and gas cleanup unit with the large time constants, so dynamic response of the power plant is delayed. On the other hand, the fluctuating power generation of renewable energies creates the need for flexible operations (e.g. fast start-up and rapid load change) of thermal power plants including IGCC power plants. This paper describes: (1) two new control methods for IGCC power plants that are combined as the proposed control method to reduce the gasifier pressure rise when rapid load changes are required; and (2) a plant-wide dynamic simulation to consider the operability and controllability of the plants. Simulation results showed the gasifier pressure rise rate was reduced from 7.4% to 3.6% due to the new proposed control method, recycle gas flow rate and steam flow rate control, with load change from 100% to 65% at 20%/min. In the case of 15%/min load change, the gasifier pressure rise rate was 2.8% and less than the maximum permissible value of 3.0%. |
| first_indexed | 2024-04-11T08:06:52Z |
| format | Article |
| id | doaj.art-586ef3ac4eb84c979551a21443915ec6 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:06:52Z |
| publishDate | 2014-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-586ef3ac4eb84c979551a21443915ec62022-12-22T04:35:29ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-12-0180820TEP0379TEP037910.1299/transjsme.2014tep0379transjsmeOperation methods of rapid load changes for integrated coal gasification combined cycle power plantsYasuhiro YOSHIDA0Tatsurou YASHIKI1Fumihiko KISO2Hirotsugu FUKUHARA3Toshinori YASUTOMI4Hitachi Research Laboratory, Hitachi, Ltd. Hitachi Research Laboratory, Hitachi, Ltd. Hitachi Research Laboratory, Hitachi, Ltd.Power Systems Project Management Division, MITSUBISHI HITACHI POWER SYSTEMS, Ltd.Electric Power Development CO., Ltd.The IGCC (integrated gasification combined cycle) is emerging as one of the most advanced and effective systems for electric energy generation. The IGCC consists of pressure vessels such as a gasifier, syngas cooler and gas cleanup unit with the large time constants, so dynamic response of the power plant is delayed. On the other hand, the fluctuating power generation of renewable energies creates the need for flexible operations (e.g. fast start-up and rapid load change) of thermal power plants including IGCC power plants. This paper describes: (1) two new control methods for IGCC power plants that are combined as the proposed control method to reduce the gasifier pressure rise when rapid load changes are required; and (2) a plant-wide dynamic simulation to consider the operability and controllability of the plants. Simulation results showed the gasifier pressure rise rate was reduced from 7.4% to 3.6% due to the new proposed control method, recycle gas flow rate and steam flow rate control, with load change from 100% to 65% at 20%/min. In the case of 15%/min load change, the gasifier pressure rise rate was 2.8% and less than the maximum permissible value of 3.0%.https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0379/_pdf/-char/enigccdynamic simulationload changegasifier pressure |
| spellingShingle | Yasuhiro YOSHIDA Tatsurou YASHIKI Fumihiko KISO Hirotsugu FUKUHARA Toshinori YASUTOMI Operation methods of rapid load changes for integrated coal gasification combined cycle power plants Nihon Kikai Gakkai ronbunshu igcc dynamic simulation load change gasifier pressure |
| title | Operation methods of rapid load changes for integrated coal gasification combined cycle power plants |
| title_full | Operation methods of rapid load changes for integrated coal gasification combined cycle power plants |
| title_fullStr | Operation methods of rapid load changes for integrated coal gasification combined cycle power plants |
| title_full_unstemmed | Operation methods of rapid load changes for integrated coal gasification combined cycle power plants |
| title_short | Operation methods of rapid load changes for integrated coal gasification combined cycle power plants |
| title_sort | operation methods of rapid load changes for integrated coal gasification combined cycle power plants |
| topic | igcc dynamic simulation load change gasifier pressure |
| url | https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014tep0379/_pdf/-char/en |
| work_keys_str_mv | AT yasuhiroyoshida operationmethodsofrapidloadchangesforintegratedcoalgasificationcombinedcyclepowerplants AT tatsurouyashiki operationmethodsofrapidloadchangesforintegratedcoalgasificationcombinedcyclepowerplants AT fumihikokiso operationmethodsofrapidloadchangesforintegratedcoalgasificationcombinedcyclepowerplants AT hirotsugufukuhara operationmethodsofrapidloadchangesforintegratedcoalgasificationcombinedcyclepowerplants AT toshinoriyasutomi operationmethodsofrapidloadchangesforintegratedcoalgasificationcombinedcyclepowerplants |