Re: The Physics Behind the Spanish Blackout

On 2025-06-11 21:54, KevinJ93 wrote:

On 6/11/25 7:31 AM, Don Y wrote:
<...>
 >>On 6/11/2025 3:12 AM, Carlos E.R. wrote:

I think mine is a nominal 1Kw, maybe 1.2, maybe 800 (I don't remember, fine print on the split impossible to read, too far). It is inverter type, so most of the time it is doing 300W.

>
4T is ~14KW.  Not counting the power used by the blower (which is probably
the better part of a KW).

 Are we talking thermal or electrical power?
 I think Carlos was referring to the electrical power input.

Yes. As measured with a little cheap device, now defunct, that does take into account the power factor, something I would found amazing when I studied electronics on another decade.
I make do with lowering the temp inside to maybe 2 degrees less than the uncooled house, so the power needed is small and relatively cheap.

 4T is 48,000 BTU/Hr. This is equivalent to 14kW thermal
(3412BTU = 3412W).
 With a COP of 3 this would require about 4.6kW electrical input
 <...>

--
Cheers, Carlos.