[FRIAM] new thermal tech

[Pieter Steenekamp]

I am somewhat puzzled by the discussion surrounding the efficiency of heat
pumps in relation to the laws of thermodynamics. If my understanding is
correct, the salient question being raised is whether it is possible for a
heat pump to transfer 3 to 4 kW of heat using only 1 kW of electricity,
which seems to contradict the laws of thermodynamics.

Allow me to clarify: a heat pump is not creating 3 to 4 kW of energy, but
rather transferring 3 to 4 kW of heat from a lower temperature to a higher
temperature using 1 kW of electrical energy. This is entirely within the
realm of thermodynamic principles, as I learned them in engineering school.
Heat pumps have been in use for some time, and it is not uncommon to find
off-the-shelf heat pumps capable of this task.

Pieter

On Fri, 6 Jan 2023 at 19:34, David Eric Smith <desmith at santafe.edu> wrote:

> I assume “delivers” would have been a better word choice than “produces”.
>
> After we create better schools to teach our kids government and
> citizenship, we should move on and teach them to understand thermodynamics.
>
>
> > On Jan 6, 2023, at 12:27 PM, Gary Schiltz <gary at naturesvisualarts.com>
> wrote:
> >
> > Amusing indeed (the PV magazine article). The pump “reportedly
> > produces 3 kW to 4 kW of heat for every kilowatt of power it
> > consumes”. Say what?
> >
> > On Fri, Jan 6, 2023 at 8:28 AM Roger Critchlow <rec at elf.org> wrote:
> >>
> >> I was amused to see an announcement of a thermoacoustic heat pump  the
> other day:
> >>
> >>
> https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.pv-magazine.com%2f2023%2f01%2f02%2fresidential-thermo-acoustic-heat-pump-produces-water-up-to-80-c%2f&c=E,1,SIXaeD9pWPwQ9_a2yQcA2Mb6Oa19--caDioiCnI9tb9wHtj9F3T-fS0FbAdlNeoJjozEjvgRHvMxxDB874D65rIXmYYzllXMzQ-xbTUOen3OXZ0wb7n6ON_lX3U,&typo=1
> >>
> >> then an ionocaloric refrigerator announcement turns up this morning
> >>
> >>
> https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fnewscenter.lbl.gov%2f2023%2f01%2f03%2fcool-new-method-of-refrigeration%2f&c=E,1,WtFGOsq-ZfdSeNDj-coqZXFEeJnYAea0pwlFL95XWPuzaTHMiuaDIsqM19iVS7Oaw1ElarAioZmixa4jBVRrZyrnp7sdhboRXZmwL4HYzjyNmyPqbA,,&typo=1
> >>
> >> It seems that you won't recognize your air conditioner in a few years.
> >>
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