Originally posted by: Technomancer
Long before we have room-temperature superconductors, electronics will be moving to spintronics making superconducting materials obscolete as they will transmit energy through electron spin with no energy loss to heat. So perhaps that would be a better solution than plasma silencing, and reducing the need for fans at the same stroke.
As stated by f95toli in your other thread, the overall system will still be dissipative. Even if the transfer could be handled without dissipation (and that is a
huge if...), you would still need controlling logic on either side (which still creates heat). Spintronics/QC/etc. are not the holy grail of computing, no matter what some website tells you.
Anyways.... Getting back on topic....
Plasma silencing has never been used to eliminate a sonic boom to my knowledge. Plasma silencing is used to reduce the turbulence in the exhaust stream of a jet engine. Sonic booms, however, occur due to pressure build up across the leading edge of the aircraft.
Plasma silencing has no real advantages over a fixed chevron inside the airflow, other than the fact that the plasma can be turned on and off. For PC applications, it would be much smarter to study the airflow characteristics of the fan exhaust, and use fins to reduce turbulence.
Even if you did this, I doubt you would see much drop off in noise. You would be much better off spending some money on a non-sleeve fan, and remove any obstructions to the intake/exhaust. Those 2 things are creating far more noise than the turbulance of the air at such low speeds.
