Fig. 4
From: Thin film-based colorful radiative cooler using diffuse reflection for color display
Radiative cooling performance of the proposed CRC. a Schematic diagram of the testing equipment for experimentally evaluating the radiative cooling ability. b The temperature variation of FS-MS, FS-MR, colored plastic, FS-R-A-MS (1000#, 680#, and 280#) and ambient during the testing hours between 10:30 and 18:30. The solar irradiation (the light yellow area) is plotted for reference, and the average radiance between 11:30 and 15:30 is ~ 700W·m−2. c The temperature variation of FS-MS, FS-MR, colored plastic, FS-R-A-MS (1000#, 680#, and 280#) and environment during the testing hours between 18:30 and 10:30 (the next day). The solar irradiation (the light yellow area) is plotted for reference. d Estimated cooling power of the proposed CRC. The value of non-radiative heat coefficient (hc) is 13 W·m−2·K−1 by linear regression, and the solar irradiance is set as 850 W·m−2