Fig. 3: The outdoor cooling experiment of the ECRC for actively temperature regulated enclosures.
From: Color-preserving passive radiative cooling for an actively temperature-regulated enclosure
a Photograph of the measuring setup and diagram of the three experimental groups: bare roof, roof with ECRC, and roof with only hot mirror. b Schematic diagram of the testing chamber. A power-adjustable thermoelectric cooler is placed at the bottom of the chamber for active temperature control. c–f Real-time room temperature Troom (solid line) and roof temperature Troof (dashed line) in the outdoor test of the green (c), red (d), white (e), and black (f) roofs. Upper part: real-time solar irradiance (orange, left y-axis) and ambient temperature (blue, right y-axis)
