Advanced radiant ceiling cooling system
Overview
This project evaluated an advanced radiant ceiling cooling configuration for office buildings in hot and humid conditions, with emphasis on both system efficiency and indoor thermal comfort.
Method
The proposed system coupled radiant ceiling panels and a dedicated outdoor-air system with an air-to-air sensible heat exchanger. EnergyPlus simulation, exergy analysis, dehumidification-temperature optimization, and variable-air-volume control were used to compare the design with a conventional fan-coil system.
Key findings
The proposed configuration reduced the indoor discomfort ratio from 54.0% to below 0.8%, lowered total energy use by 19.8%, and increased exergy efficiency from 16.1% to 21.1% relative to the original fan-coil system. The results demonstrate how passive reheating and load shifting can improve radiant cooling in dense, hot-humid office environments.
Contribution
Conceptualization, data curation, methodology, software, visualization, and original-draft writing.