Impact of solar radiation on the operation performance of radiant cooling systems: A comprehensive literature review

Radiant cooling systems are recognized as an appealing option compared to conventional convection air conditioning systems in glass curtain wall buildings, like airports, because these systems can achieve energy saving while minimize the effects of solar radiation. However, existing investigations into the transmission mechanisms, underlying thermodynamic principles, and holistic impacts of indoor solar radiation remain fragmented, lacking comprehensive theoretical frameworks and systematic exploration. To provide an overview of the research status regarding operational performance of the system and thermal characteristics indoor thermal environment, this paper systematically reviews existing published works on the compound effects of solar radiation on both the thermal dynamics of radiant cooling systems and indoor thermal environment. The analysis method of indoor solar radiation distribution and the effect of incident solar radiation on cooing capacity, cooling load calculation and indoor thermal comfort have been comprehensively reviewed. Limitations and future research suggestions for current studies are also summarized, along with a proposed research framework to fully leverage the advantages of radiation cooling systems in mitigating effect of solar radiation. According to the reviewed studies, the methods for calculating incident solar radiation in indoor zones, design strategies for individualized radiant cooling systems that deal with solar radiation, and the effectiveness of active elimination of radiation heat gain as well as passive anti-condensation are the directions for future research. It is a necessary reference for the design and operation of radiant cooling system utilized in glass curtain wall buildings based on this study. The aim is to enhance and broaden the usage scenarios of radiant cooling system across the diversity climate and building