Sangam: A Confluence of Knowledge Streams

Thermal performance of different integration schemes for a solar tower aided coal-fired power system

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dc.creator Li, Chao
dc.creator Zhai, Rongrong
dc.creator Yang, Yongping
dc.creator Patchigolla, Kumar
dc.creator Oakey, John E.
dc.date 2018-09-04T12:42:58Z
dc.date 2018-09-04T12:42:58Z
dc.date 2018-06-23
dc.date.accessioned 2022-05-25T16:38:15Z
dc.date.available 2022-05-25T16:38:15Z
dc.identifier Chao Li, Rongrong Zhai, Yongping Yang, et al., Thermal performance of different integration schemes for a solar tower aided coal-fired power system. Energy Conversion and Management, Volume 171, 1 September 2018, pp. 1237-1245
dc.identifier 0196-8904
dc.identifier https://doi.org/10.1016/j.enconman.2018.06.064
dc.identifier http://dspace.lib.cranfield.ac.uk/handle/1826/13456
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/182313
dc.description A Solar Tower Aided Coal-fired Power (STACP) system utilizes a solar tower coupled to a conventional coal-fired power system to reduce pollutants, greenhouse gas emissions and the investment of solar energy facilities. This paper examines three different schemes for integrating solar energy into a conventional boiler. For each scheme, an energy and exergy analysis of a 600 MWe supercritical coal-fired power system is combined with 53 MWth of solar energy in both a fuel saving mode and a power boosting mode. The results show that, for all these integration schemes, the boiler’s efficiency and system’s efficiency are reduced. However, the standard coal consumption rate is lower in comparison to conventional power plants and the standard coal consumption rate in the fuel saving mode is lower than that in the power boosting mode for all three schemes. Comprehensively considering both the standard coal consumption rate and efficiency, the scheme that uses solar energy to heat superheat steam and subcooled feed-water is the best integration option. Compared with a coal-fired only system, the saved standard coal consumption rate of the above mentioned scheme in fuel saving mode and power boosting mode can reach up to 11.15 g/kWh and 11.11 g/kWh, respectively. Exergy analysis shows, for STACP system, exergy losses of boiler and solar field contribute over 88% of whole system’s exergy loss.
dc.language en
dc.publisher Elsevier
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Solar tower power system
dc.subject Coal-fired power system
dc.subject Fuel saving mode
dc.subject Power boosting mode
dc.subject Exergy analysis
dc.title Thermal performance of different integration schemes for a solar tower aided coal-fired power system
dc.type Article


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