Last Uploaded: July, 2008

Kansai Electric Power Building

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Eco-frame

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Cross-section of window area
Cross-section of window area Natural ventilation simulation results Eco-frame exterior Eco-frame

The column / beam shape (Eco-frame) that protrudes 1.8m from the window surface not only blocks direct sunlight in summer, but also facilitates effective natural light intake as well as natural ventilation (by introducing wind directly into the rooms while mitigating strong winds along the river).
the outlet has baffle plates in the internal side of the natural ventilation chamber. This is so designed that wind introduced by natural ventilation reaches to the center of the interior of the room. Solar panels are installed on the south-facing Eco-frames on each floor, making effective use of space.

Task-ambient air conditioning system

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Floor blower outlet for task air conditioning
Floor blower outlet for task air conditioning Floor blower outlet for task air conditioning Task zone temperature measurement results  

A task-ambient air conditioning system is adopted to reduce overall air conditioning output. This includes floor blower outlets that the residents can adjust to airvolume, direction of air current and so on their own temperature requirements.
We have confirmed, through experimental simulation, that task air conditioning can effectively heat or cool task zones without creating perceptible draughts, etc.

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These cases are described based on assessment results obtained using CASBEE.
CASBEE is a method for rating the environmental performance of buildings using Building Environmental Efficiency (BEE) as an indicator, which is based on the results of separate scores obtained for Q-1~Q-3 (Quality) and LR-1~LR-3 (Load Reduction).