Radiative cooling is a ubiquitous passive process that uses photon heat flow to carry away energy and entropy. Radiative cooling processes have been studied in the scientific literature for many decades, but advances in nanophotonics have enabled recent breakthroughs in daytime radiative cooling, which ...
A theoretical equation was derived to predict the surface temperature of night sky radiators as a function of power, Q, from radiator properties and sky conditions. The power of an ideal radiator, RI, which is perfectly black in the 8–14 μm atmospheric window, perfectly reflective outside ...
These radiators are made by brazing thin aluminum fins to flattened aluminum tubes. The coolant flows from the inlet to the outlet through many tubes mounted in a parallel arrangement. The fins conduct the heat from the tubes and transfer it to the air flowing through the radiator. The tubes...
But because of the way the city was designed — building up into the sky instead of spreading out — not every property is suited for a traditional HVAC system for central heating and cooling. For this reason, many property owners and businesses are looking for alternative ways to...
In the present paper, optimal design of CPC reflector shape is made to enhance the cooling performance of the 2-D CPC sky radiator. Further, the CPC sky radiator with 3-D geometry is newly proposed and comparison is made between the 3-D and 2-D CPC sky radiators for the cooling power...