{Technical and economical optimization for a typical solar hybrid coal-fired power plant in China}

Submitted by admin on April 4, 2017 - 9:22am

Title	{Technical and economical optimization for a typical solar hybrid coal-fired power plant in China}
Publication Type	Journal Article
Year of Publication	2017
Authors	Wang Y, Xu J, Chen Z, Cao H, Zhang B
Journal	Applied Thermal Engineering
Volume	115
Pagination	549–557
ISSN	13594311
Abstract	Solar hybrid coal-fired power plant can use solar heat with temperature lower than 300°C to generate power efficiently by replacing the bled-off steam from a steam turbine to heat the feed water. In this paper, a model of the solar field and power block has been developed to investigate the thermodynamic and economic performances of a solar hybrid coal-fired power plant under a variety of operating conditions and structure layouts. The effects of the key operating parameters on the performances of the solar hybrid coal-fired power plant are numerically investigated. A technical and economical optimization of the solar multiple has been presented. Furthermore, the annual solar-to-electric efficiency, annual solar power output and levelized cost of electricity of the solar hybrid coal-fired power plant are also analyzed. It is found that the efficiencies in the region of 13–20{%} can be achieved, and this for levelized cost of electricity in the region of 0.7–1.1¥/kWhe, depending on the solar multiple and substituting method.
DOI	10.1016/j.applthermaleng.2016.12.132