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Type: Journal article
Title: Simulated performance analysis of a solar aided power generation plant in fuel saving operation mode
Author: Zhang, N.
Hou, H.
Yu, G.
Hu, E.
Duan, L.
Zhao, J.
Citation: Energy, 2019; 166:918-928
Publisher: Elsevier
Issue Date: 2019
ISSN: 0360-5442
Statement of
Nan Zhang, Hongjuan Hou, Gang Yu, Eric Hu, Liqiang Duan, Jin Zhao
Abstract: Solar aided (coal-fired) power generation (SAPG) system has been proved to be an efficient way to utilize the solar energy for power generation. Due to the instability of the solar radiation, a SAPG system generally operates under transient working conditions. In this paper, performance simulation sub-models of main components in a SAPG plant are established based on the lumped parameter assumption. A 330 MW SAPG power plant as a case study is simulated. The variations of the performances, main parameters of the plant with the solar field heat output and the dynamic responses under a typical day are analyzed. The results show that when the heat output of the solar field changes from 0 kJ/h to 2.13 × 10⁸ kJ/h, the coal saving rate will increase to 6.4%, and the solar power generation share (the proportion of the power from the solar energy to the total power from the SAPG plant) will increase to 7.74%. During the analysis process, in order to optimize the solar field, the concept of the solar field equivalent efficiency (SFEE) is proposed and the optimal velocity of heat transfer fluid (HTF) in absorber tube is obtained.
Keywords: Solar aided coal-fired power generation; optimize design; parameter variation; dynamic responses
Rights: © 2018 Elsevier Ltd. All rights reserved.
DOI: 10.1016/
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