Abstract
Since the low-medium temperature solar selective absorbers were developed and widely used, high-temperature solar absorber became the hotspot in this field, the prospect of which is of promise. This paper based on the recent research, where the influence of materials, film structure and metal volume fraction on the solar-thermal conversion efficiency was analyzed according to theoretical research and experiment result. The results of computer simulation of the double-layer Mo-Al2O3 absorber showed the influence of two important factors, metal volume fraction and layer depth, with different mechanisms on the optical performance of the double-layer Mo-Al2O3 cermets absorber, an optimization calculation yields a solar absorptance of 0.92-0.95, while normal emittance at temperature of 350°C was controlled below 0.05.
| Original language | English |
|---|---|
| Pages (from-to) | 1353-1358 |
| Number of pages | 6 |
| Journal | Taiyangneng Xuebao/Acta Energiae Solaris Sinica |
| Volume | 29 |
| Issue number | 11 |
| State | Published - Nov 2008 |
| Externally published | Yes |
Keywords
- Computer simulation
- High temperature
- Selective solar absorber
