MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202631051932 A) filed by National Institute Of Technology, Patna, Bihar, on April 23, for 'a solar thermal absorber device with graphite resonators and two-dimensional nickel grating.'
Inventor(s) include Kumar, Naveen; and Giri, Pushpa.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "A solar thermal absorber device (100) includes a nickel substrate (102) formed with a two-dimensional periodic grating (104) defining open cavities (102-6) between grating walls (102-4), a truncated conical graphite resonator (106) seated within each open cavity (102-6) presenting a base diameter (106-2) smaller than a top diameter (106-4), and a silicon dioxide layer (108) filling a space within each open cavity (102-6) around the truncated conical graphite resonator (106) and extending over the grating walls (102-4) to form a cap layer (108-4). The truncated conical graphite resonator (106) and surrounded by the silicon dioxide layer (108) confines and traps incident solar radiation within the open cavities (102-6) through successive internal reflections along lateral faces (106-6) of the truncated conical graphite resonator (106). Unlike conventional planar absorber configurations that fail to suppress reflective losses across wide spectral regions, the solar thermal absorber device achieves average absorption exceeding 95%."
Disclaimer: Curated by HT Syndication.
