Re:New ‘mirror’ fabric can cool wearers by nearly 5°C
by dTal on Friday July 09, 2021 @02:58PM
(#27787238)
This is wrong on several levels. The energy expended by a fan is proportional to the mass flow. The energy required to accelerate the rotor is negligible compared to the ongoing energy required to keep it turning and doing work. Also, I'm pretty sure that the energy use of the fan is itself negligible compared to the heat pump.
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Re:New ‘mirror’ fabric can cool wearers by nearly 5°C
by codingdave on Friday July 09, 2021 @03:27PM
(#27787571)
Hm - everything people are saying makes sense. I was repeating what I've been told by literally every HVAC guy I've had work on multiple houses over the last 10+ years. If the professionals are all wrong, I suppose it could just be one of those tropes that persists in an industry?