This is a share house in the city of Chiba. It looks like a slightly large detached house from the outside. About 10 people live together there.
One day, the owner appeared with a new tenant for the first time in a while. The owner has his own home and rarely shows up at the share house. Since it's rare, one or two existing residents gathered and took their places on the sofa... They are asking the wall, "Make it a little cool," or "I'm not feeling well today, so keep it warm." I also tell it, "I'm comfortable right now." By saying this, the AI understands that this level of air conditioning is good for this person at this temperature in this season.
The owner is engrossed in explaining to the new tenant.
"Because of my obsession, the air conditioning here knows the preferences of each resident and sets it to be comfortable for everyone. We call it 'Comfortable Cooling/Heating for Everyone'. If necessary, you can ask the wall to fine-tune it, and you know how your body is flushed right after you come home... At that time, it keeps it cool strongly and then gradually looses it. Since it adjusts that for each person, there is no need for someone to hold back and endure to match everyone like before."
"By the way, the air conditioning here is not just an air conditioner but a system that 'adjusts the living environment by taking radiant cooling/heating into account', which is said to be more comfortable for the human body...
...To give another example, It makes it a little cooler after meals, Or warmer when you are not feeling well..."
His boasting doesn't stop. Even without explaining so tediously, you'll understand while talking to Ryo-kun (everyone gives it a name arbitrarily). While thinking so, the gathering rate in this room is certainly high. Everyone gathers naturally even if they have no business. Because it's wider and more comfortable than being in their own rooms...
From here, I have summarized the success of the AI air conditioning heard from the residents and the struggle and hardship story of the engineer of the construction shop who constructed this meeting room (how the owner who wanted to introduce new technology by all means made unreasonable demands) for your reference...
Success of AI Air Conditioning
【Mr. A】 The youngest in the share house
But Coo-kun (ditto) is helpful.
Maybe my metabolism is too good, but I sweat easily and get sweaty with just a slight change
in temperature, and if I leave it alone, I get cold and catch a cold.
But I don't worry about it anymore because it adjusts it arbitrarily.
【Mr. B】 An uncle of the silver generation. It seems he
moved in because he was lonely after his wife died.
My partner continued working as a nurse for a long time.
Speaking of the elderly's circadian rhythm... Metabolism is low in the morning and gradually
increases towards the afternoon.
Matching that, she would dress me in slightly warmer clothes in the morning, or cover me
with something because my body temperature drops again when I take a nap slightly.
In spring and autumn, the temperature changes more than expected, so she was nagging me to
receive attention and not be absent-minded!
Come to think of it, I didn't really like air conditioners, and even when the whole family
gathered in the living room,
It was fine at first, but only I got colder and colder, so I couldn't stand it and took
refuge in another room.
It's probably my original constitution rather than my metabolic adjustment ability becoming
weaker with age...
It may be AI, but Misae (ditto) helps by finely adjusting the sensible temperature.
Misae... I want to see you again.
【Mr. C】 Self-proclaimed poet. Cherishes putting the
messages of nature into words.
If the room is closed, I can't hear the message of nature.
But if I leave it open, it's hot or cold.
When I open the window to listen to the message of nature on a winter day, Shuntaro-san
(ditto) makes the radiant heating a little stronger, so it's comfortable.
I can listen slowly.
Usually, everyone stopped saying "It's cold! Close it!".
But Coo-kun (ditto) is helpful. Maybe my metabolism is too good, but I sweat easily and get sweaty with just a slight change in temperature, and if I leave it alone, I get cold and catch a cold. But I don't worry about it anymore because it adjusts it arbitrarily.
My partner continued working as a nurse for a long time. Speaking of the elderly's circadian rhythm... Metabolism is low in the morning and gradually increases towards the afternoon. Matching that, she would dress me in slightly warmer clothes in the morning, or cover me with something because my body temperature drops again when I take a nap slightly. In spring and autumn, the temperature changes more than expected, so she was nagging me to receive attention and not be absent-minded! Come to think of it, I didn't really like air conditioners, and even when the whole family gathered in the living room, It was fine at first, but only I got colder and colder, so I couldn't stand it and took refuge in another room. It's probably my original constitution rather than my metabolic adjustment ability becoming weaker with age... It may be AI, but Misae (ditto) helps by finely adjusting the sensible temperature. Misae... I want to see you again.
If the room is closed, I can't hear the message of nature. But if I leave it open, it's hot or cold. When I open the window to listen to the message of nature on a winter day, Shuntaro-san (ditto) makes the radiant heating a little stronger, so it's comfortable. I can listen slowly. Usually, everyone stopped saying "It's cold! Close it!".
Other stories heard: ・Stopped getting air conditioning sickness ・Prevention of hypothermia ・Relief of disturbance of thermoregulatory function (autonomic imbalance, stress, fatigue)
Introduction of New Technology: The Outcome
The reason why the owner started to be particular about air conditioning was Because he learned that there is a technology to divide a large living room like a meeting room into N areas and adjust each to a different sensible temperature. That is a technology called radiant cooling/heating, and he intuited that it seemed possible to make adjustments that are difficult with air conditioners alone. The owner, who has been running share houses for a long time, seems to have always been troubled by the management of the meeting room. This room is hot! Cold! Someone always raises the temperature too much, so warn him! Once, he was falsely accused that autonomic imbalance was the fault of the share house with a medical certificate as a shield. It seems he intends to solve those problems with new technology. However, the owner, who is not just a new technology geek, did not think that everything would be fine simply by introducing new technology! The owner's share house is a high-insulation building with a UA value of about 0.3, but high-insulation buildings have their own worries. That is, the room temperature tends to fluctuate wildly. The causes are Various reasons such as the insertion of the sunset, increased heat generation due to many residents, being sensitive to outside temperature and changes because of high insulation... Therefore, he decided to first control the room temperature to an average optimal value with an air conditioner and then perform fine-tuning for each resident with radiant cooling/heating. As equipment, small air conditioners are operated continuously, and multiple 1.6×1m radiant panels are installed on the ceiling and walls of the meeting room. Water with individually adjusted temperature is flowed to each panel to adjust the sensible temperature in the vicinity. Actually, there is a formula that determines human sensible temperature. Sensible Temperature = (Room Temperature + Radiation Temperature of Ceiling/Walls) ÷ 2 The reason why cooling doesn't work even if you turn it to the strongest on a hot summer day is that the ceiling and walls are warm. Expressed in a formula: (Cooling 26℃ + Ceiling/Walls 34℃) ÷ 2 = 30℃ It should be hot. If the ceiling and walls are 34℃, the sensible temperature is finally 25℃ with cooling at 18℃, but the power of the air conditioner cannot catch up. So there is no choice but to run it strongly and wait for the ceiling and walls to cool gradually. In this renovation, the radiation temperature of the ceiling and walls is actively controlled to always obtain a favorable sensible temperature. To adjust frequently, hot water and cold water made by a heat pump are stored in a heat storage tank and used. In terms of scale, about 10 tanks with a diameter of 0.3m and height of 1.5m are required, so they were placed under the stairs. When the outline was decided and an estimate was requested, the engineer of the construction shop said, "Since the technical level is high and there represent many new technologies, I want to issue an estimate after verifying the value and prototyping." He also said he wanted verification costs. The owner also realized he was asking for the impossible, so he agreed on that condition. From the engineer, "It is an engineer's honor to be able to challenge the latest technology. I was impressed by the spirit of foresight!" He was praised, and the owner was not displeased. However, the electricity bill is quite high. Roughly 30,000 yen/month × 12 months × 30 years = 10.8 million yen! However, this is the engineer's specialty. If you use a solar power generation method that is much simpler and cheaper than residential solar power generation, the electricity bill can be reduced by 80%, he said. Operate the heat pump with daytime solar electricity, store hot/cold water in the tank, and can be consumed almost entirely in-house. Since it is independent, no grid connection approval is required. No power conditioner etc. is required, equipment/maintenance costs are low, and the failure risk is low. The engineer was also enthusiastic, saying "I will look for a DC input type heat pump with a suitable size!" Anyway, you won't know until you try it! It seems the two got excited.