Our consortium, made of European partners from 6 countries, has regularly published news about the construction site in Spain. To make the process clearer, we have created this explanatory video that sums up the important milestones along the progress of the construction, as well as the roles of each partner and the steps ahead. It will be updated with the remaining steps, once the project is completed in November.
The MOSAIC project has reached a new important milestone: the first access of the receiver to the oven for heating-up procedure testing. On 15th June, the prototype site was ready for this manoeuvre, which allows the receiver to be placed inside the oven for heating process or to prevent high temperature losses from the receiver (during night, for example).
The complete manoeuvre in this specific installation consists of the following steps:
The receiver is placed by means of the tracking system control in a vertical position, just in front of the oven. The upper crossbars of the receiver are laid on a specific retractable support.
This support moves to the oven, placing the receiver in its right position.
The doors of the oven close. The isolation parts of the receiver at its ends fit with the oven doors, so the receiver is kept in an isolated space, where the heating-up process can take place.
When the receiver is needed to move from the oven to the workspace, the inverse manoeuvre is carried out.
See the whole process in this video (accelerated 20 times):
From now onwards, the prototype can be tested with HTF preheating at intermediate temperatures, a previous step before the solar field is built and the higher temperatures are reached.
During the last months, different systems had been tested by means of a dummy receiver connected to dummy hoses, simulating work conditions. Once the tests were completed, both the receiver and the hoses were replaced by the real ones. The operation was carried out from 20th to 22nd April and needed the participation and the cooperation of different partners and their subcontractors. The thermal installation is now complete with its real components.
The elevation of the ensemble was performed by means of a crane which lifted the real hoses, already connected to the receiver, while the receiver itself was lifted by the tracking system cables, in a coordinated operation. The hoses’ end, opposite to the receiver, was connected to the skid installation, on top of the main metallic tower.
In the following days, the system will be filled with HTF, and then the thermal loop system will be ready for the different tests that will assess its fine working. In a few weeks the solar field will be installed, before the start of the final period of set-up tests. Stay tuned for more news !