A Thermodynamic System of Coal-Fired Power Unit Coupled S-Co2 Energy-Storage Cycle
SSRN, ISSN: 1556-5068
2022
- 2Citations
- 184Usage
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
An S-CO 2 energy-storage cycle system is added to a 660 MW coal-fired power unit to increase operational flexibility. With a round-trip efficiency ( RTE ) of 56.14%, a thermodynamic system for coal-fired units (with an additional S-CO 2 energy-storage cycle) is built. Turbine extraction steam was used as energy source for the energy-storage system. An analysis of the impact of different factors on the thermodynamic system-performance reveals that both the S-CO 2 flow rate and the compressor/turbine pressure ratio have a significant impact. For example, a 5 kg/s increase in S-CO 2 mass flow rate improves the RTE by roughly 5%. Furthermore, the system RTE increases by about 10% when the S-CO 2 turbine pressure ratio was increased by 1.0. The higher the steam temperature of the energy-storage source, the lower the RTE . Moreover, the effect of both S-CO 2 flow rate and turbine pressure ratio on the system investment cost and payback period is determined based on a technical and economic analysis. This study provides a reference that can be used to improve the operational flexibility of coal-fired power units.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85178541158&origin=inward; http://dx.doi.org/10.2139/ssrn.4050408; https://www.ssrn.com/abstract=4050408; https://dx.doi.org/10.2139/ssrn.4050408; https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4050408; https://ssrn.com/abstract=4050408
Elsevier BV
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know