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  • 11 votes cast
Nov
26
comment Cooldown of a 1 meter wide sphere of water at 10C° in space
I added details as you requested. Is that good enough now?
Nov
26
revised Cooldown of a 1 meter wide sphere of water at 10C° in space
added 444 characters in body
Nov
26
asked Cooldown of a 1 meter wide sphere of water at 10C° in space
Feb
17
awarded  Popular Question
Apr
9
awarded  Teacher
Apr
9
answered sending information over a wire--mechanically
Apr
9
comment Water flushed down, water pumped up (in buildings)
Indeed .. it seem that to invest into a better elevator system would be simpler and cheaper than to improve the water system, and would save as much energy .. if not more.
Apr
9
comment Water flushed down, water pumped up (in buildings)
Thank you for the answer and the link.
Apr
9
accepted Water flushed down, water pumped up (in buildings)
Apr
9
revised Water flushed down, water pumped up (in buildings)
edited tags
Apr
9
asked Water flushed down, water pumped up (in buildings)
Apr
9
comment Should I heat my room when I'm not here, energy-efficiently speaking?
The vapor water problem could be solved using an efficient MVHR (Mechanical Ventilation with Heat Recovery). See question physics.stackexchange.com/questions/23432/…
Apr
9
comment Maximum efficiency for a counter-current heat exchanger (double flux controlled motorized ventilation)
Thank you for this pretty useful answer.
Apr
9
awarded  Student
Apr
9
awarded  Editor
Apr
9
revised Maximum efficiency for a counter-current heat exchanger (double flux controlled motorized ventilation)
Edited the title with the information from the answer.
Apr
9
awarded  Supporter
Apr
9
awarded  Scholar
Apr
9
comment Maximum efficiency for a counter-current heat exchanger (double flux controlled motorized ventilation)
That's exactly the mechanism I meant. Thank you for the great comment and for the links!
Apr
9
accepted Maximum efficiency for a counter-current heat exchanger (double flux controlled motorized ventilation)