In this sector, the bcbMonitor 4.0, integrated with FLIR artificial vision equipment, can be applied for different applications in solar thermal plants such as the automatic calibration of heliostats, the non-contact measurement of the receiver temperature, the estimation of the dirt on the mirrors. of the solar field or other preventive / predictive maintenance tasks, among others. In these plants, due to their size (with radii even greater than one kilometer) it is very important to measure solar attenuation. bcb is marketing an innovative system for its measurement, and has installed it in Noor Energy 1, the largest solar platform in the world.
Parabolic trough solar thermal plants are currently the most mature technology and with the greatest presence within the solar thermal sector. In this equipment, both the temperature of the collector tube and the heat transfer fluid are important parameters when determining the state of the plant, as well as being critical control points. Added to this are other parameters such as the level of buckling of the tubes, dirt on the mirrors, state of the tube coating, among others.
To cover the need in these plants for a fast and efficient system for preventive / predictive maintenance, the bcbMonitor 4.0 is established as a continuous thermographic monitoring system that, integrated with FLIR cameras and high-performance drones (MTOW > > 5 kg) , it is possible to carry out complete inspections in this type of plants to monitor different parameters such as:
The reason of why the measurement of solar attenuation in a solar power plant relies on solar extinction being the main cause of energy loss.
The system consists of positioning the cameras one behind the other at a large distance and both taking images of the target. The system will measure the intensity levels of the digital images, which will provide with the diffuse radiance coming from the target. The intensity difference or light attenuation between both images, provides the attenuation, being βExt the attenuation coefficient considering both, the absorption and scattering mechanisms, and dependent on humidity, aerosols and particle concentration in the atmosphere.
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