Revolutionizing Indoor Thermal Comfort: Iris Damper Integration with Step-based Control in Central Air Conditioning System

This research addresses the challenge of uneven temperature distribution in central air conditioning systems, causing discomfort for occupants. The proposed solution involves a novel step-based control mechanism in an iris damper, dynamically adjusting its aperture in response to changing temperatures. An experiment demonstrates the effectiveness of this method in maintaining indoor temperature within a specified range of 23.5℃ to 24.5℃, leading to improved temperature uniformity throughout the indoor spaces. The findings suggest that integrating the step-based control in iris dampers enhances thermal comfort, offering a practical solution and efficient avenue for rectifying temperature-related issues in buildings equipped with conventional variable air volume (VAV) systems in central air conditioning. This approach has the potential to revolutionize temperature regulation, providing a cost-effective means to enhance occupant satisfaction in various building types.