Daily dynamic performance of a solar chimney power plant integrated by waste heat recovery
Daily dynamic performance of a solar chimney power plant integrated by waste heat recovery
复制标题
余热回收集成太阳能烟囱发电厂的日常动态性能
DOI：
10.1049/iet-rpg.2019.0588
复制
发表时间：
2020-01
影响因子：
2.6
通讯作者：
Xu Yangyang
中科院分区：
文献类型：
--
作者：
Zhou Xinping;Xu Yangyang
基于瞬态模型对一大型混合式SCPP（在集热器-烟囱过渡段增设余热源）进行了数值模拟。得到了连续24 h的发电量、凝结水质量流量和代表点温度的日动态曲线，以及日总发电量和日功率曲线峰谷差与日平均值之比即功率差均比（PDAR）。通过改变太阳辐射强度，分析了有效废热通量对发电量的影响。结果表明，将足够高热流密度的废热引入SCPP，可明显提高功率输出。随着EWHF从0增加到2GW，日总发电量增加了119.99%，PDAR从1.61下降到0.8。此外，太阳辐射较弱时，PDAR较小。这表明，足够高的废热通量有助于平坦的工厂的功率输出的日廓线，特别是对于弱太阳辐射。而较低的废热通量对功率输出和PDAR影响不大。
The numerical simulation of a large-scale hybrid SCPP (an additional waste heat source is connected to the collector-to-chimney transition section) is performed based on a transient model. The daily dynamic profiles of power output, mass flow rate of condensed water and temperature at a representative point for continuous 24 h are obtained, as well as the daily total electricity output and the power difference-to-average ratio (PDAR) defined as the ratio of the peak-valley difference of the daily power profile to the daily average. The effect of effective waste heat flux (EWHF) on the power output by changing the solar radiation intensity is evaluated. Results show that the incorporation of waste heat with enough high heat flux into SCPP causes clear enhancement of the power output. With the increase in the EWHF from 0 to 2 GW, the daily total electricity output increases by 119.99% and the PDAR drops from 1.61 to 0.8. Moreover, the PDAR is smaller for weaker solar radiation. This indicates that enough high waste heat flux helps to flatten the daily profile of the plant power output, especially for weak solar radiation. While low waste heat flux has little influence on the power output and the PDAR.
登录
查看更多内容
DOI：
--
发表时间：
2009-07
期刊：
--
影响因子：
--
作者：
通讯作者：
--
影响因子：
10.4
作者：
A. Habibollahzade;E. Houshfar;M. Ashjaee;Amirmohammad Behzadi;E. Gholamian;H. Mehdizadeh
通讯作者：
A. Habibollahzade;E. Houshfar;M. Ashjaee;Amirmohammad Behzadi;E. Gholamian;H. Mehdizadeh
影响因子：
11.7
作者：
N. T. Mbungu;R. Bansal;R. Naidoo;Vladimiro Miranda;M. Bipath
通讯作者：
N. T. Mbungu;R. Bansal;R. Naidoo;Vladimiro Miranda;M. Bipath
影响因子：
6.7
作者：
Xinping Zhou;Yangyang Xu
通讯作者：
Xinping Zhou;Yangyang Xu
DOI：
10.1115/1.2210491
发表时间：
2006-08
影响因子：
2.3
作者：
J. Pretorius;D. Kröger
通讯作者：
J. Pretorius;D. Kröger