350w peltier as a power generator, electricity generator

[david picard]

i found 350w peltiers on market nowadays
did anyone play with this thing?
how much wattage will pump out at 80 celcius temperature differential?
i live in very cold region and this unit may even prove practical for me!

thanks much

 

[Phil Hobbs]

I found one reference that mentioned a thermal efficiency of 4%, but I
can't tell if that applies to modern units or not. That would convert a
350 watt heat flow to 14 watts of electrical energy.

Here are some related links I found:
http://www.nanothermel.org/public_main.htm
http://ee.wustl.edu/class/sp05/ese435/Thermoelectricity.pdf

I've heard of people using a high-temperature Peltier (e.g. a Ferrotec
or Marlow, not a Melcor) between a camp stove and a cooking pot, to
charge batteries.

Cheers,

Phil Hobbs

 

[John Popelish]

i found 350w peltiers on market nowadays
did anyone play with this thing?
how much wattage will pump out at 80 celcius temperature differential?
i live in very cold region and this unit may even prove practical for me!

thanks much

I found one reference that mentioned a thermal efficiency of 4%, but I
can't tell if that applies to modern units or not. That would convert
a 350 watt heat flow to 14 watts of electrical energy.

Here are some related links I found:
http://www.nanothermel.org/public_main.htm
http://ee.wustl.edu/class/sp05/ese435/Thermoelectricity.pdf

 

[Joerg]

Hello Phil,

I've heard of people using a high-temperature Peltier (e.g. a Ferrotec
or Marlow, not a Melcor) between a camp stove and a cooking pot, to
charge batteries.

There is also a Peltier fan for wood stoves. Freaking expensive for my
taste. So, ours runs with regular fans and a battery backup in case the
power goes. Works fine.

Regards, Joerg

 

[Paul Burke]

There is also a Peltier fan for wood stoves. Freaking expensive for my
taste. So, ours runs with regular fans and a battery backup in case the
power goes. Works fine.

We've got one on our group- owned narrow boat. It works wonderfully, but
most of the rest of the group think it works by magic. I just tell
them that it's the fan turning that makes the stove burn...

Paul Burke