Moist-Electric Wallpaper for Indoor Energy Harvesting and Humidity Management
croes · 27 points · 18 comments · 2 時間前 · Open original
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MOMostlyStable26 分前
Cool concept. As they mention, more work needs to be done on long term durability, although they saw no degradation in their (very short) testing period. To me, the humidity control seems more worthwhile/useful than the power generation, although that could be a useful solution for small IoT devices like door and window sensors that don't need much power.
I like it as a proof of concept, would love to see a more serious engineering effort to demonstrate what real world costs, durability, and aesthetics might look like (if significant portions of indoor walls are going to be covered in this stuff, it needs to be able to look decent).
JEjedberg1 時間前
I've thought for a while that it would be interesting to have micro dehumidifiers on my roof that supplement my water supply from humidity.
Turn myself into a moisture farmer if you will.
But then I wonder, would it be a problem if everyone did it? Would it cause humidity to drop in a bad way?
DIdinkblam28 分前
> A 1596-unit array powers a wireless keyboard and simultaneously reduces indoor humidity from 38% to 32%,
isn't below 40% "bad"?
WEwesturner5 分前
How to make this work with infrared wallpaper?
"Ask HN: Are there infrared wallpaper products in US markets?" (2025) https://news.ycombinator.com/item?id=45444514 :
> /? infrared wallpaper heating : https://www.google.com/search?q=infrared+wallpaper+heating
BIbix61 時間前
That’s impressive humidity drop for a small panel area. Curious how big the room was.
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5 preview comments · loading full threadLog in to h4cker, then connect Hacker News to publish comments.
Cool concept. As they mention, more work needs to be done on long term durability, although they saw no degradation in their (very short) testing period. To me, the humidity control seems more worthwhile/useful than the power generation, although that could be a useful solution for small IoT devices like door and window sensors that don't need much power. I like it as a proof of concept, would love to see a more serious engineering effort to demonstrate what real world costs, durability, and aesthetics might look like (if significant portions of indoor walls are going to be covered in this stuff, it needs to be able to look decent).
I've thought for a while that it would be interesting to have micro dehumidifiers on my roof that supplement my water supply from humidity. Turn myself into a moisture farmer if you will. But then I wonder, would it be a problem if everyone did it? Would it cause humidity to drop in a bad way?
> A 1596-unit array powers a wireless keyboard and simultaneously reduces indoor humidity from 38% to 32%, isn't below 40% "bad"?
How to make this work with infrared wallpaper? "Ask HN: Are there infrared wallpaper products in US markets?" (2025) https://news.ycombinator.com/item?id=45444514 : > /? infrared wallpaper heating : https://www.google.com/search?q=infrared+wallpaper+heating
That’s impressive humidity drop for a small panel area. Curious how big the room was.