Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics
Energy Clean and Efficient Utilization in Coal-fired Power Systems|更新时间:2025-07-04
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Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics
Power Generation TechnologyVol. 40, Issue 4, Pages: 316-322(2019)
作者机构:
华北电力大学能源动力与机械工程学院, 北京市 昌平区 102206
作者简介:
基金信息:
National Basic Research Program of China(2015CB251505);National Nature Science Foundation of China(51776063);Fundamental Research Funds for the Central Universities(JB2019QN010)
Rongrong ZHAI, Hongtao LIU. Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics[J]. Power Generation Technology, 2019, 40(4): 316-322.
DOI:
Rongrong ZHAI, Hongtao LIU. Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics[J]. Power Generation Technology, 2019, 40(4): 316-322. DOI: 10.12096/j.2096-4528.pgt.19042.
Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics
To reveal the influence of heat transfer and heat source temperature on system performance in finite time
and the theoretical basis of solar-aided coal-fired power generation system
the relationship between output power
efficiency and cycle parameters in finite time thermodynamic system was improved. The significance of each parameter and its influence on system performance were discussed in combination with the case of solar-aided coal-fired power generation system. The results show that the system design of 500 MW and 1 000 MW coal-fired generating units is reasonable
and the output efficiency is between C-A efficiency and ideal cycle efficiency. The integrated system efficiency is reduced to some extent. The performance of 1000 MW integrated system deteriorates under the coal saving mode
and the efficiency is lower than C-A efficiency. Therefore
the system process needs to be improved. The efficiency of 200 MW coal-fired power generation system before and after integration is lower than the C-A efficiency
indicating that the system process needs to be greatly improved.
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