Posted on 12/25/2020 4:39:33 AM PST by TigerLikesRoosterNew
A smart thermostat quickly learns to optimize building microclimates for both energy consumption and user preference.
Buildings account for about 40 percent of U.S. energy consumption, and are responsible for one-third of global carbon dioxide emissions.
Making buildings more energy-efficient is not only a cost-saving measure, but a crucial climate change mitigation strategy.
Hence the rise of “smart” buildings, which are increasingly becoming the norm around the world.
Smart buildings automate systems like heating, ventilation, and air conditioning (HVAC); lighting; electricity; and security.
Automation requires sensory data, such as indoor and outdoor temperature and humidity, carbon dioxide concentration, and occupancy status.
Smart buildings leverage data in a combination of technologies that can make them more energy-efficient.
Since HVAC systems account for nearly half of a building’s energy use, smart buildings use smart thermostats, which automate HVAC controls and can learn the temperature preferences of a building’s occupants.
In a paper published in the journal Applied Energy, researchers from the MIT Laboratory for Information and Decision Systems (LIDS), in collaboration with Skoltech scientists, have designed a new smart thermostat which uses data-efficient algorithms that can learn optimal temperature thresholds within a week.
“Despite recent advances in internet-of-things technology and data analytics, implementation of smart buildings is impeded by the time-consuming process of data acquisition in buildings,” says co-author Munther Dahleh, professor of electrical engineering and computer science and director of the Institute for Data, Systems, and Society (IDSS). Smart thermostat algorithms use building data to learn how to operate optimally, but the data can take months to collect.
To speed up the learning process, the researchers used a method called manifold learning, where complex and “high-dimensional” functions are represented by simpler and lower-dimensional functions called “manifolds.”
(Excerpt) Read more at knowridge.com ...
“Automation requires sensory data, such as indoor and outdoor temperature and humidity, carbon dioxide concentration, and occupancy status.”
Once the building becomes self-aware, it will realize the most efficient way to regulate energy consumption is to eliminate humans.....
I went to skool so eye cud acrumbulate knowridge.
The biggest problem I have seen is poorly set up zones. Near the windows and center are run on the same thermostat, so sections will be too hot or cold depending on the thermostat location. Instead make the edges one region and the center another one. If employees are bringing in fans or heaters, you need you HVAC fixed.
I don't want a data server located God knows where controlling my lights and thermostat.
>Instead make the edges one region and the center another one
That’s commercial HVAC Design 101 stuff. Has been SOP in typical office building HVAC design for many decades.
Zoning costs money, though, and when the entire east face is one zone in a large building, say, results can be less than optimal.
If I were a just a little more conspiracy minded, I might think that the destruction of small businesses in America, as a response to a virus with a 99.75% survival rate, was in reality a way to get rid of all those energy inefficient small businesses in the country that waste resources in the name of individual initiative and personal freedom. But that’s just ridiculous..., isn’t it...?
It is more like: “Never let a crisis go to waste”
The most important part is insulation. With sealed, thin sheet aerogel insulation just a few millimeters thick, with minimal energy use, buildings could be cold in the heat of summer and hot at the coldest time of winter.
And this also applies to appliances like ovens and refrigerator/freezers. Line them with sealed aerogel panels and once at temperature, with minimal extra energy they stay there.
Aerogel is so efficient that it cannot be used in clothing, even in Arctic conditions.
When it gets cold in the house, I just throw another log on the fire. When it gets too warm, I go outside and sit on the deck.
Rule number 3 of basic rules to marriage: After 20 years the only difference between a husband and a wife is 3 degrees on a thermostat.
I quit reading right after: “global carbon dioxide emissions.”
(1, 2, 3, 4 waiting for the “your ignorant for not reading the whole article” police here on FR to make stupid comments)
Trust me. It is not smart enough for my wife who sweats at 64 and freezes at 72.
I seem to recall some outcry over the “smart meters” that were installed several years ago.
I prefer the old fashioned way.
Wife: “Are you cold? I’m cold.”
Me: “I’m good.”
Wife: “Yeah? I’m chilly.”
Me: No response.
Wife: “Don’t you think it’s chilly?”
Me: “No.”
Wife: “Really? I’m cold.”
.
.
.
.
.
.
.
.
Wife: “Can you go turn the heat up?”
Me: “Sure!”
So true. Many battles were fought over what temperature air conditioner is set to.
Wifey likes the room 4 to 5 degrees higher than I do. Dave isn’t going to disagree with a hormonal deficient woman...
cousins of these SMART-) Thermostats were used to
throw the Election of 2020.
they connected the Biden/Beijing/ChInA/Frankfort/Ukraine
“voting” machines to the Internet.
anyone indicted yet?
You got may interest so I priced out Aerogel at one internet site and for a mere $250 I can buy a single sheet 4 feet x 30 inches that’s a whopping 6mm thick.
An online search of our local building supply stores do not offer this as a whole house wrap, or in any other manner for a home insulation.
It is not cost effective.
Don’t ask me a difficult question. LOL.
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