Abstract
One of the main principles of concentrated solar power (CSP) technologies is based on large mirror or reflector surfaces, which reflect the incoming radiation onto a focus. The largest component of a CSP system is the mirror. Therefore, the feasibility of these technologies strongly depends on the reflector material used to obtain a suitable mirror. A very relevant issue is to find a cost-effective mirror with appropriate optical and geometrical properties, which is able to resist the environmental stress. The key optical property in a solar mirror is the solar specular reflectance. The quality of the concentrated solar flux profile on the focus is directly related to the accuracy achieved by the mirror to conform the desired concentrator geometry. Accelerated conditions are used in climate chambers when predicting a mirror's durability, to save time and costs. These results are combined with outdoor tests results to obtain realistic acceleration factors. In addition, the cleaning method must be optimized to reduce the operation and maintenance (O&M) costs.
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