this post was submitted on 03 Jul 2024
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How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world. About 1C of total warming. Second chart: about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability. Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases. About 0.5C of cooling with large error bars from SO2.

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The hunt for the most efficient heat pump in the world (arstechnica.com)
submitted 4 months ago by Oestradiolo@lemmy.blahaj.zone to c/climate@slrpnk.net
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A new generation of engineers has realized they can push heat pumps to the limit.

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[–] Oestradiolo@lemmy.blahaj.zone 10 points 4 months ago (1 children)

Be great if I could afford one though

[–] GreatTitEnthusiast@mander.xyz 7 points 4 months ago (1 children)

Can you not afford an air conditioner? A heatpump is only marginally more expensive

[–] Oestradiolo@lemmy.blahaj.zone 2 points 4 months ago

Yes. I cannot afford an air conditioner. That was the post.

[–] evranch@lemmy.ca 5 points 4 months ago

I saw 5 for air-air and was impressed. Then I see SCOP? Oh please. Why not change the scale again to make sure nobody knows what a good value is. Just like SEER on an air conditioner.

SCOP varies depending on environmental conditions!

Real COP or go home IMO. Watts out/watts in, no fudging numbers to confuse consumers again.

[–] cordlesslamp@lemmy.today 4 points 4 months ago (1 children)

I'm just surprised there's no "AI heat pumps" yet.

Now that's something the world is really needed. (/s)

[–] skuzz@discuss.tchncs.de 2 points 4 months ago* (last edited 4 months ago)

https://www.sciencedirect.com/science/article/pii/S2352484722012021

AI is the new rule 34.

Artificial intelligence (AI) models for refrigeration, heat pumps, and air conditioners have emerged in recent decades. The universal approximation accuracy and prediction performances of various AI structures like feedforward neural networks, radial basis function neural networks, adaptive neuro-fuzzy inference and recurrent neural networks are encouraging interest. ... Thus, complex multi-objective problems that require high precision solutions to optimize the cost and performance of ideal RHVAC are solved using artificial intelligence techniques (Mohanraj et al., 2012).

Granted, this is modeling, not implementation, but.

[–] witty_username@feddit.nl 2 points 4 months ago

Nice read

[–] LodeMike@lemmy.today 1 points 4 months ago

Define efficient.