Japan Sustainable Building Database

Air flow window using ceramic printed glass

Air flow window using ceramic printed glass

The façade fully covered with ceramic printed glass not only accentuates landscapes but also reduces air conditioning loads significantly and conserves energy in combination with air flow windows. In addition, light that diffuses and passes through ceramic printed glass helps the use of daylight with less glare.

Task and ambient lighting system

 

Inside view of office

A task and ambient lighting system is utilized for offices. The scale of this system is the largest in Japan, and it made a contribution to a reduction in power consumption for lighting and energy consumption for air conditioning. The average illuminance of ambient lighting is 300 lx, and we developed lighting equipment capable of controlling illuminance and preventing uneven illuminance.

Two-system outside air supply system making use of cooling and humidification

 

Air conditioning system diagram of typical floor

As shown in the air conditioning system diagram of a typical floor, outside air is supplied to the terminal air conditioning system through two systems: one for minimum fresh-air intake and another for air cooling using outside air. This system

1) keeps the difference in temperature between supplied cold water and returned cold water large, 2) improves the humidification and cooling effect by water humidification in winter, and 3) controls the capacity of the terminal air conditioning systems.

Semi-personal air conditioning system

 

Air outlet capable of adjusting flow rate separately in four different directions

To improve the productivity of the "intelligent production plant", we made the air conditioning system temperature as individually controllable as possible. We 1) segmented the VAV zone, 2) adopted wireless sensors, and 3) developed new air outlets that can adjust the flow rate separately in four different directions.