EVR 1001 Chapter 8 Nonrenewable and Renewable Energy
Researchers have developed a hybrid device that can efficiently capture solar energy and store it in molecular bonds until it is needed..
Unlike solar panels, which use photovoltaic cells to directly generate electricity, the invention of scientists from the University of Houston absorbs heat (with an efficiency of 73-90%) and can work around the clock..
The device uses an organic compound of norbornadiene-quadricyclane as storage material, which possesses high rates of specific energy and heat release, remaining stable for a long time.
According to the researchers, the device is so efficiently absorbs heat due to its ability to capture the entire spectrum of the solar set, collecting it for immediate use and converting excess into chemical bonds. During the night, the system restores up to 80% of the accumulated heat, and during the day this figure is even higher..
Submitted concept provides for the possibility a variety of materials to optimize performance including temperature and efficiency.
Storing energy in molecular form, rather than heat, prevents it from dissipating, and the integrated conversion system does not require fluid transportation through pipelines.
During the day, solar thermal energy can be harvested at temperatures up to 120 °C, and with night recovery, even more heating can be achieved.
Recall that earlier a similar storage concept was proposed by Swedish physicists, but they were less effective.
text: Ilya Bauer, photo: University of Houston, UCF