Hello
it seems to me to have read that 2 significantly different bodies of T ° could generate electric current. is right? any links?
please
warm cold
-
- Moderator
- posts: 79364
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 11060
Indeed, it is the inverted Peltier effect.
Type it in google or "Calopile".
Unfortunately the yields are very low (5 to 10%) and the applications therefore very specific.
I think the Minto wheel is much more promising (see topic on forum )
Type it in google or "Calopile".
Unfortunately the yields are very low (5 to 10%) and the applications therefore very specific.
I think the Minto wheel is much more promising (see topic on forum )
Last edited by Christophe the 10 / 02 / 06, 15: 29, 1 edited once.
0 x
Do a image search or an text search - Netiquette of forum
-
- x 17
This property is used in thermocouples to measure a temperature for example. See the full article in Wikipedia here.
0 x
-
- Moderator
- posts: 79364
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 11060
Hello
Ah well I did not know that the effect was reversible. I have a Peltier effect heatsink. It needs a large power supply to create a difference of 65 ° C between the two faces.
So if I heat it to 65 ° C on one side it will produce juice?
And compared to a photovoltaic sensor, how much worse is it? (% Tage)
Too bad it is not terrible because otherwise we could recover losses by Joule effect on all kinds of machines.
Ah well I did not know that the effect was reversible. I have a Peltier effect heatsink. It needs a large power supply to create a difference of 65 ° C between the two faces.
So if I heat it to 65 ° C on one side it will produce juice?
And compared to a photovoltaic sensor, how much worse is it? (% Tage)
Too bad it is not terrible because otherwise we could recover losses by Joule effect on all kinds of machines.
0 x
-
- Moderator
- posts: 79364
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 11060
Normally yes it should come out of the juice ... but it depends on the T ° and materials used ... but test to see if you see a beginning of effect ...
Otherwise the comparison with photovoltaics is not wise since you do not start from the same source ...
Otherwise the calopile has an average yield of around 10% but it depends bcp on the delta of T ° ... (the 15% given on the following page are in ideal conditions)
http://calopile.free.fr/caracteristiques.html
It is especially interesting (as you say) to optimize heat losses a little ... provided, of course, that you find a "cold" source
Otherwise the comparison with photovoltaics is not wise since you do not start from the same source ...
Otherwise the calopile has an average yield of around 10% but it depends bcp on the delta of T ° ... (the 15% given on the following page are in ideal conditions)
http://calopile.free.fr/caracteristiques.html
It is especially interesting (as you say) to optimize heat losses a little ... provided, of course, that you find a "cold" source
0 x
Do a image search or an text search - Netiquette of forum
-
- x 17
It reassures when we know that they send space probes containing plutonium on a launcher, they remain rather discreet on this subject:
Link: here.
Diagram of the "calopile" on board the space probe:
[...] This is notably the case with the Voyager probe, launched in 1977, in which the heat flux established between fissile PuO2 (PuO2 is radioactive and decays, so it is a source of heat) and the external environment passes through a thermoelectric conversion system based on SiGe (silicon and germanium alloy), allowing the supply of the probe with electricity (indeed, space probes going beyond Mars cannot be supplied by solar panels, the solar flux being much too weak). See article Radioisotope thermoelectric generator. [...]
Link: here.
Diagram of the "calopile" on board the space probe:
0 x
hello, the reverse pellet effect is called the seebeck effect (name of the inventor)
I did the test with hot water coming out of the tap on one side and an iron plate for the cold part on the other, I don't know how much it produced, but I know it was not a lot
if not a link for seebeck generator and their price
http://www.hi-z.com
I did the test with hot water coming out of the tap on one side and an iron plate for the cold part on the other, I don't know how much it produced, but I know it was not a lot
if not a link for seebeck generator and their price
http://www.hi-z.com
0 x
-
- x 17
aidiv wrote:hello, the reverse pellet effect is called the seebeck effect (name of the inventor)
I did the test with hot water coming out of the tap on one side and an iron plate for the cold part on the other, I don't know how much it produced, but I know it was not a lot
if not a link for seebeck generator and their price
http://www.hi-z.com
Interesting, here are concrete applications at least, thank you !!
30 watts already allows you to do something, and the price remains correct.
The modules look quite "rustic" in design, and must also be robust and stable over time.
0 x
-
- Similar topics
- Replies
- views
- Last message
-
- 41 Replies
- 6182 views
-
Last message by gek
View the latest post
17/02/23, 12:51A subject posted in the forum : Hydraulic, wind, geothermal, marine energy, biogas ...
-
- 8 Replies
- 3651 views
-
Last message by Sandy
View the latest post
09/11/23, 10:54A subject posted in the forum : Hydraulic, wind, geothermal, marine energy, biogas ...
-
- 1 Replies
- 6519 views
-
Last message by GuyGadeboisTheBack
View the latest post
11/01/22, 18:48A subject posted in the forum : Hydraulic, wind, geothermal, marine energy, biogas ...
-
- 36 Replies
- 15339 views
-
Last message by eclectron
View the latest post
02/03/21, 12:26A subject posted in the forum : Hydraulic, wind, geothermal, marine energy, biogas ...
-
- 2 Replies
- 9216 views
-
Last message by bducange
View the latest post
26/01/24, 19:10A subject posted in the forum : Hydraulic, wind, geothermal, marine energy, biogas ...
Back to "hydraulic, wind, geothermal, marine energy, biogas ..."
Who is online ?
Users browsing this forum : No registered users and 447 guests