Toshihiko Sudo, Ryoichi Kajiya, Koji Sakai, Tomoyuki Okusa
Year:
2015
Bibliographic info:
Building Simulation, 2015, Hyderabad, India

The integration of two technologies - the Airconditioning Duct System and Optical Mirror Duct System - into a new energy-saving system “Integrated Optical Air Duct System” (IOAD) significantly reduces the lighting energy, which accounts for roughly 30% of the energy consumption in large-scale office buildings. The utilization of IOAD in combination with other energy reduction techniques could help these office buildings become Zero Energy Buildings (ZEB). The IOAD System could minimize the effect of natural light loss during light transport inside the air conditioning duct branches and thus allow for the efficient usage of day light. CFD simulations were performed to examine the flow of conditioned air in the duct.