Re:Fridge Condenser Fans – Old and New [video]
by baybal2 on Monday September 02, 2019 @10:04AM
(#20859166)
This is a thing with all compressors. Naturally a fully solid state one is a dream for engineers working in many industries.
There were few experimental solid state ones that worked on exotic work fluids like hydrogen or ammonia, but nothing consumer grade is on the horizon.
Midea with Haier are two big funders of the research.
Most of the ones I tried suck - they might not be loud, but they were very irritating and frequently running. At least old fridges ran less often and had a more plesant engine-like noise.
The exception is ammonia absorption which doesn't require a compressor or fan. They are mostly used in RVs and hotel rooms, but can be used at home too.