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Review on Performance Analysis of the Power Block in Concentrated Solar Power Plants
Energy Technology ( IF 3.6 ) Pub Date : 2020-11-06 , DOI: 10.1002/ente.202000621
Hui Yan 1 , Anming Wang 1 , Daotong Chong 1 , Ming Liu 1 , Jiping Liu 1 , Junjie Yan 1
Affiliation  

Concentrated solar power (CSP) is a promising option to generate flexible and green power for the power grid. Power block is important to enhance energy efficiency and flexibility of CSP plants, which mostly operate in off‐design conditions and dynamic processes due to the intermittency of solar energy. Many studies have been conducted on the performance analyses of power block in CSP plants, and they are reviewed herein. Steady‐state models of power block are summarized, and influences of power block on the entire CSP system are discussed. Through improving the dual‐pressure‐level steam generator and declining back‐pressure of condensers, power block efficiency increases by 0.5% and 1.78%, respectively. Then, the dynamic characteristics of CSP plants, particularly on the power block, are reviewed for start‐up/shut‐down processes, sudden factor change situations, and control system design. Recent advances on the thermodynamic and economic optimizations of the power block in CSP plants that aim to achieve fast start‐up/shut‐down and continuous economic stable power are discussed. Moreover, the performance of global in‐service CSP plants is discussed. Turbine efficiency increases with operation temperature (349–395 °C), ranging from 30.6% to 38.7%. Several research gaps are proposed by investigating previous studies, and suggestions on future studies are provided accordingly.

中文翻译:

集中式太阳能发电厂功率模块性能分析综述

集中式太阳能(CSP)是为电网生成灵活的绿色能源的有前途的选择。功率块对于提高CSP工厂的能源效率和灵活性很重要,由于太阳能的间歇性,CSP工厂通常在非设计条件和动态过程中运行。已经对CSP工厂中的动力装置的性能分析进行了许多研究,在此进行综述。总结了功率块的稳态模型,并讨论了功率块对整个CSP系统的影响。通过改进双压级蒸汽发生器和降低冷凝器背压,功率块效率分别提高了0.5%和1.78%。然后,回顾了CSP工厂的动态特性,尤其是在功率块上的动态特性,以了解启动/关闭过程,突然的因素变化情况和控制系统设计。讨论了旨在实现快速启动/关闭和持续的经济稳定功率的CSP电厂功率模块的热力学和经济优化方面的最新进展。此外,还讨论了全球在用CSP工厂的性能。涡轮效率随运行温度(349–395°C)而增加,范围从30.6%到38.7%。通过研究以前的研究提出了一些研究空白,并据此提供了关于未来研究的建议。讨论了全球在用CSP工厂的性能。涡轮效率随运行温度(349–395°C)而增加,范围从30.6%到38.7%。通过研究以前的研究提出了一些研究空白,并据此提供了关于未来研究的建议。讨论了全球在用CSP工厂的性能。涡轮效率随运行温度(349–395°C)而增加,范围从30.6%到38.7%。通过研究以前的研究提出了一些研究空白,并据此提供了关于未来研究的建议。
更新日期:2021-01-05
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