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Advanced AC technology introduced at restaurant operated by Suntory Holdings
Conceptual image of the "SUIKUU" restaurant after completion
OSAKA, Japan, September 6, 2024- Daikin Industries, Ltd. is introducing advanced HVAC (heating, ventilation, and air conditioning) technology to recreate the air of highland areas inside SUIKUU, a restaurant that Suntory Holdings Limited plans to open at Expo 2025 Osaka, Kansai, Japan.
SUIKUU is being operated in co-creation with Suntory, which is jointly exhibiting A Spectacle of Air and Water “Under the Midnight Rainbow” with Daikin at Expo 2025 Osaka, Kansai, Japan. The restaurant will open in the Water Plaza West Building, a commercial building in the Water Plaza area that looks out onto the sea and sky.
Under the concept of a "restaurant in the highland areas,” SUIKUU offers guests the experience of dining at a higher mountain elevation while being near the sea. To do this, the restaurant employs Daikin’s unique "ceiling-supplied displacement ventilation air conditioning," which features a high purification effect along with temperature, humidity, and airflow control technologies, to recreate the clean, refreshing air of the mountains while providing peace of mind and safety. When these advanced HVAC technologies are combined with the University of Tokyo’s multisensory stimulation (cross-modal),*1 a technology that excites the five senses through visual and audio stimuli, and Osaka University’s generative AI, the dining space is made even more enjoyable.*2
As a company aspiring to “Perfecting the Air”, Daikin will utilize its cutting-edge technology at Expo 2025 Osaka, Kansai, Japan, a "People’s Living Lab; A laboratory for a future society", to provide visitors from all over the world with safe and comfortable dining spaces of the future.
Conceptual image of "ceiling-supplied displacement ventilation air conditioning"
Ceiling-supplied displacement ventilation air conditioning is a new air conditioning system in which air adjusted to a comfortable temperature falls from the ceiling to the floor at a low speed while air containing particulate matters, such as viruses and pollen, and gas components, such as volatile organic compounds (VOCs) *3, is efficiently pushed upward toward the ceiling and exhausted to provide cool comfort without the typical cross drafts of air conditioners.
By combining this air conditioning system with two high-performance filters, a low-pressure drop, medium efficiency filter and a gas adsorption filter, the system achieves a high level of purification equivalent to five times the ventilation amount of a general office. *4 In addition, multiple IAQ sensors are installed to ensure that the air environment within the restaurant complies with ASHRAE62.1*5 and EN standards.*6
At the entrance to the restaurant, an indoor air quality (IAQ) monitor has been installed to display air conditions such as temperature, humidity, and CO2 concentration in real-time using data measured by IAQ sensors to enable the restaurant to confirm the safety and reliability of indoor air at any time.
Conceptual image of the display screen of the "IAQ monitor" installed at the entrance
Conceptual image of "Dining That Travels Through Air"
“Dining That Travels Through Air" unites air conditioning control with visual and audio stimuli to enable guests in a private dining room to experience the air of the future. Leveraging its own expertise in temperature, humidity, and airflow control technologies in conjunction with the University of Tokyo's cross-modal audiovisual technology, Daikin recreates the comfortable air of an actual scene that can be experienced inside a private dining room. Images of highlands and grasslands are projected on the walls of the room and are combined with an air environment and environmental sounds that blend in with the scenery and provide guests with the sensation of dining in nature.
The "Thermometer of the Future" is a new technology developed in collaboration with Osaka University for visualization of air environments. Various environmental factors, including season, time, weather, and indoor and outdoor temperatures and humidity, are expressed through paintings created by the latest generative AI. This technology is made possible by a two-stage AI process in which air environment data is first expressed in words, and the art is then generated from that verbal expression.
Conceptual images of painting and private room for the “Thermometer of the Future”
The paintings created by the generative AI change as conditions, such as temperature and CO2 concentration, change.
When people enter a private dining room, an outdoor air environment is depicted, and it gradually changes into a painting of a refreshing highland area corresponding to the change in the indoor air environment. In this way, cutting-edge technology transforms the information for invisible air into art using generative AI to create a unique sensory experience of air.
| Restaurant Name | SUIKUU |
|---|---|
| Business Dates | April 13, 2025 (Sunday) to October 13, 2025 (Monday) |
| Business Hours | 10:00-21:00（planned) |
| Location | Water Plaza West Building, 2nd Floor |
| Seating | Approx. 190 seats |
| Floor Area | Approx. 750m2 |
| Managing Company | DYNAC CORPORATION (a member of the Suntory Holdings Group) |
・Daikin Industries' special site for Expo 2025:https://www.daikin.co.jp/air/activity/expo2025/ (Japanese)
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