Text only | Text with Images

NotebookCHECK - Notebook Forum

English => News => Topic started by: Redaktion on August 27, 2025, 19:58:14

Title: Fine dust from electric cars: UCLA study reveals increased levels at charging stations during fast charging
Post by: Redaktion on August 27, 2025, 19:58:14
A study by the University of California, Los Angeles (UCLA) shows that the air at DC fast-charging stations for electric vehicles has significantly higher PM2.5 concentrations than usual. This is caused by fans in the electrical cabinets stirring up brake and tire wear. Initial countermeasures such as maintaining a safe distance or turning on air conditioning are recommended.

https://www.notebookcheck.net/Fine-dust-from-electric-cars-UCLA-study-reveals-increased-levels-at-charging-stations-during-fast-charging.1097961.0.html
Title: Re: Fine dust from electric cars: UCLA study reveals increased levels at charging stations during fa
Post by: Terror Byte on August 28, 2025, 02:48:58
It's pretty ridiculous that our electricity is delivered by high voltage DC and that the superchargers cannot just get the DC rather than go DC->AC->DC to waste energy and reduce efficiency.
Title: Re: Fine dust from electric cars: UCLA study reveals increased levels at charging stations during fa
Post by: A on August 28, 2025, 06:05:44
It's not even generating new particles, just blowing up the existing ones from the ground?

Well it matters little in the long run as most charging is done at home and as ev range continues to improve, less and less would the high speed DC chargers need to be used. On top of that it isn't like people just stand there, they are either in their car or elsewhere.

Quote from: Terror Byte on Today at 02:48:58It's pretty ridiculous that our electricity is delivered by high voltage DC and that the superchargers cannot just get the DC rather than go DC->AC->DC to waste energy and reduce efficiency.

Most electricity is delivered by AC. Only recently has HVDC become a thing.

The voltage conversion from AC to DC isn't that much, but it would be better if we had more HVDC.
Title: Re: Fine dust from electric cars: UCLA study reveals increased levels at charging stations during fa
Post by: ricegf on August 28, 2025, 11:27:44
Quote from: Terror Byte on Today at 02:48:58It's pretty ridiculous that our electricity is delivered by high voltage DC and that the superchargers cannot just get the DC rather than go DC->AC->DC to waste energy and reduce efficiency.

No, electric energy is distributed as high-voltage AC. It's far more efficient for transmission lines than DC.
Text only | Text with Images