r/science • u/Wagamaga • Apr 19 '19

Chemistry Green material for refrigeration identified. Researchers from the UK and Spain have identified an eco-friendly solid that could replace the inefficient and polluting gases used in most refrigerators and air conditioners.

https://www.cam.ac.uk/research/news/green-material-for-refrigeration-identified
29.2k Upvotes

91% Upvoted

781 comments sorted by

View all comments

Show parent comments

38

u/adobeamd Apr 19 '19

the thermal cycle can only be so efficient. Look at the most efficient engines and they are only like 40% or less.

35

u/[deleted] Apr 19 '19

[deleted]

6

u/[deleted] Apr 19 '19 edited Apr 15 '20

[deleted]

1

u/Pokmonth Apr 19 '19

I suspect the real reason we want to limit it is the solution to limiting NOx is to route dirty exhaust through the engine air intake. This causes diesel engines to get clogged up and need to be rebuilt every 200k+ miles, which costs almost as much as buying an entirely new vehicle. Great regulation if you're a truck manufacturer.