[volt-nuts] DIY Air bath
Poul-Henning Kamp
phk at phk.freebsd.dk
Sat Jan 14 07:06:18 UTC 2012
In message <1326495142.51960.YahooMailNeo at web161706.mail.bf1.yahoo.com>, Randy
Scott writes:
>>Depends on the temperature difference but I seem to recall that it
>>is something like 1:3.
>
>Forgive my ignorance, but does this mean that it is "harder" to cool
>than it is to heat, given the same magnitude of current through the
>junction?
Yes, running electricity through the peltier heats it. The heat is
dissipated evenly throughout.
On the warm side you get:
0.5 * Electrical-heat + Moved-heat
On the cold side you get:
0.5 * Electrical-heat - Moved-heat
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the volt-nuts
mailing list