Combined heat and power generation with a HCPV system at 2000 suns
Combined heat and power generation with a HCPV system at 2000 suns
复制标题
使用 HCPV 系统在 2000 个太阳光下进行热电联产
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Cannas
中科院分区：
文献类型：
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作者：
F. Paredes;F. Montagnino;P. Salinari;G. Bonsignore;S. Milone;S. Agnello;M. Barbera;F. Gelardi;L. Sciortino;A. Collura;U. L. Cicero;M. Cannas
这项工作展示了一种创新的太阳能热电联产系统的发展，该系统基于在2000个太阳的高浓度水平下工作的HCPV模块，用于热电联产。太阳辐射集中在商业InGaP/InGaAs/Ge三结太阳能电池设计的密集工作。主光学器件是矩形离轴抛物面镜，而抛物面镜焦点处的辅助光学器件与细胞光学接触地胶合。每个模块包括2轴跟踪器（Alt-Alt型），20个多结电池，每个电池都集成了一个有源散热器。电池连接到主动传热系统，该系统允许将电池保持在高水平的电效率（ηel > 30%），使传热流体（水和乙二醇）达到90°C的输出温度。因此，从第一个1 kWe原型收集的实验数据，提取的热能的总量高于收集的太阳辐射的50%。此外，系统的电效率有助于达到超过80%的总热电联产效率。
This work shows the development of an innovative solar CHP system for the combined production of heat and power based upon HCPV modules working at the high concentration level of 2000 suns. The solar radiation is concentrated on commercial InGaP/InGaAs/Ge triple-junction solar cells designed for intensive work. The primary optics is a rectangular off-axis parabolic mirror while a secondary optic at the focus of the parabolic mirror is glued in optical contact with the cell. Each module consist of 2 axis tracker (Alt-Alt type) with 20 multijunction cells each one integrated with an active heat sink. The cell is connected to an active heat transfer system that allows to keep the cell at a high level of electrical efficiency (ηel > 30 %), bringing the heat transfer fluid (water and glycol) up to an output temperature of 90°C. Accordingly with the experimental data collected from the first 1 kWe prototype, the total amount of extracted thermal energy is above the 50% of the harvested solar radiation. That, in addition the electrical efficiency of the system contributes to reach an overall CHP efficiency of more than the 80%.