Off-design performance characteristics study on ISCC system with solar direct steam generation system

被引：12
|
作者：
Duan, Liqiang [1 ]
Wang, Zhen [1 ]
Guo, Yaofei [1 ]
机构：
[1] North China Elect Power Univ, Key Lab Power Stn Energy Transfer Convers & Syst, Natl Thermal Power Engn & Technol Res Ctr, Minist Educ,Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China
来源：
ENERGY | 2020年 / 205卷 / 205期
基金：
中国国家自然科学基金;
关键词：
ISCC; Off-design performance; Load adjustment; Direct steam generation; Solar energy; COOLED GAS-TURBINE; COMBINED-CYCLE; PARABOLIC TROUGH; TECHNOLOGIES;
D O I：
10.1016/j.energy.2020.118044
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Integrated solar combined cycle (ISCC) system can make full use of solar energy, improves the system thermal efficiency and reduces the fossil fuel consumption. In this paper, the model of ISCC system is established by using the Aspen Plus and Ebsilon. The off-design operation performance characteristics of the gas turbine cycle (GTC), steam turbine cycle (STC) and ISCC system are investigated under different gas turbine off-design operation modes. And the thermal performances of ISCC system under different environmental conditions are also analyzed. The research results show that the impact of the gas turbine off-design operation mode on the STC is more significant than that on the GTC, so in order to obtain the optimum operation performance of the ISCC under off-design conditions, the inlet guided valve (IGV) of air compressor should be adjusted accordingly, which can ensure that the efficiency of STC keeps at a high level. The effect of environmental conditions on the GTC is greater than that on the STC. The influence of the ambient temperature on ISCC system is greater than the influence of DNI on ISCC system. The achievements from this paper will provide valuable references for system design and operation optimization of ISCC system. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：16
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