Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Real-Size Experiments on Reverse Natural Air Convection Between Inclined Parallel Plates for New Insulation Methods in Solar Flat-Plate Collectors J. Sol. Energy Eng. 2016;139(2):021003-021003-7. doi:10.1115/1.4035024 Figure Legend: (a) Side face of the real-size laboratory setup in inclined position. On the left, the thermostat for the cold plate and the DC power supply for the hot plate as well as the measuring DMM and the side insulation can be seen; (b) experimental setup from the front side with area heater (2000 × 940 × 2 mm3) after removing the front PIR insulation.