Parametric Analysis of a Photonic Radiative Cooling System
Abstract
Spectrally selective materials show high technical potential for use as radiative cooling heat exchangers for buildings. This paper presents the simulation and parametric analysis of a photonic radiative cooling system that integrates the use of the photonic radiative cooler and radiant floor cooling. With the whole energy simulation program EnergyPlus, the simulation was made for a 3-storey medium office building with a total floor area of 5,000 m2. Three key design parameters including the radiator area, the storage tank volume to radiator area ratio, and the water flow rate to radiator area ratio, were investigated in this paper. The results show that the percentage of cooling electricity savings from the photonic radiative cooling system relative to a reference variable-air-volume system has a linear relationship with the radiator area, and a quadratic correlation with the other two variables.