are these 12V PELTIER plates? I am looking at 12V 130W plates and i'm wondering how many i would need to generate 14V when sandwiched between out pot belly and the pot of water that sits above, i would make an aluminium sandwich they could sit in in-between the fire and the pot. Thanks.
In case you are curious, I am trying to build a high power density device that will output around 15-90 W (depending on size constraints)... I am trying to figure out if I can get more power density (in terms of power output per unit volume -- the volume would include the heat sinks and everything) by using some of the TEGs' power output to power a fan. My alternative cooling methods are (1) using only fins, (2) using fins and blowing CO2 from a compressed tank to cool the fins
You mentioned that the voltage jumped up when you turned the fan off, but I am still a little confused since their was no load applied when you removed the fan... Although my question seems like it would violate the 1st or 2nd law of thermo I am still very curious... obviously the fan increases the power output if you were to get power from an external source, but would it "pay for itself" (by increasing the net power output of the TEG) if you used the TEGs to power it?
@cxaxnxexs Well when the load was removed the voltage jumped up, its like when starting a car the battery voltage will be lower than 12 volts like 10 because of the draw, then remove the load and the voltage returns.
I don't want to be negative, but you should not touch the heat sink compound with your finger, it goes right through your skin into your bloodstream, highly dangerous stuff.
You must measure the amps in series with the fan to detemine the power output. Measuring the amps in parallell, will determine the power inside the Peltier element at no output.
Good video the target should be 30watts to run a small tv anything bigger can be done occasionally with a generator eg washing machine. Next delta T can be improved say on a boat by sinking the heat to water or the outside air. Last but not least the overheating problem make the thermal linkage using Woods metal it melts at 70centigrade breaking the link.
Great video I just made a similar video today the problem with this Peltier elements is that if they get to high they will get damaged melt. To be safe I think you need to keep the hot side at less than 60C or 140F.
I think a nice application can be a small toy boat made of aluminium so one part will be cooled by water and the top of the boat have a black painted aluminium heatsink that will get heat from the sun.
@flightdeckreviews I added some links to my video information above, check them out to learn a little about the Peltier Effect. (I can't add links in comments)
are these 12V PELTIER plates? I am looking at 12V 130W plates and i'm wondering how many i would need to generate 14V when sandwiched between out pot belly and the pot of water that sits above, i would make an aluminium sandwich they could sit in in-between the fire and the pot. Thanks.
James
izzzzzz6 1 week ago
400 milliwatts, you should try powering a laser
FndASltn 3 weeks ago
why you are coling heatsink with fan?
Slovenija12345 3 months ago in playlist Več videoposnetkov uporabnika filear
@Slovenija12345 the more you cool the more current and voltage you can generate. That heat synch is inadequate.
filear 3 months ago
Comment removed
stap0510 4 months ago
This is a great video.
Who wants free energy?
Cheaper electric bills?
Robots4Sale 4 months ago
In case you are curious, I am trying to build a high power density device that will output around 15-90 W (depending on size constraints)... I am trying to figure out if I can get more power density (in terms of power output per unit volume -- the volume would include the heat sinks and everything) by using some of the TEGs' power output to power a fan. My alternative cooling methods are (1) using only fins, (2) using fins and blowing CO2 from a compressed tank to cool the fins
cxaxnxexs 4 months ago
You mentioned that the voltage jumped up when you turned the fan off, but I am still a little confused since their was no load applied when you removed the fan... Although my question seems like it would violate the 1st or 2nd law of thermo I am still very curious... obviously the fan increases the power output if you were to get power from an external source, but would it "pay for itself" (by increasing the net power output of the TEG) if you used the TEGs to power it?
cxaxnxexs 4 months ago
@cxaxnxexs Well when the load was removed the voltage jumped up, its like when starting a car the battery voltage will be lower than 12 volts like 10 because of the draw, then remove the load and the voltage returns.
filear 3 months ago
try a bit less thermal grease next time! ;D
w3bguru 4 months ago
super informative video, ill do that this week cause it's cool
seennlisten 5 months ago
Hi.
I don't want to be negative, but you should not touch the heat sink compound with your finger, it goes right through your skin into your bloodstream, highly dangerous stuff.
Other wise very good,5s
ZEROPOINT132 6 months ago
You must measure the amps in series with the fan to detemine the power output. Measuring the amps in parallell, will determine the power inside the Peltier element at no output.
jallaguri 7 months ago
How much heat this suports?
fernandesilyt 7 months ago
Good video the target should be 30watts to run a small tv anything bigger can be done occasionally with a generator eg washing machine. Next delta T can be improved say on a boat by sinking the heat to water or the outside air. Last but not least the overheating problem make the thermal linkage using Woods metal it melts at 70centigrade breaking the link.
DavidPaulNewtonScott 9 months ago
Do they work vise versa as in if you cool rather than heat one side will it create a voltage?
Danster82 9 months ago
Great video I just made a similar video today the problem with this Peltier elements is that if they get to high they will get damaged melt. To be safe I think you need to keep the hot side at less than 60C or 140F.
I think a nice application can be a small toy boat made of aluminium so one part will be cooled by water and the top of the boat have a black painted aluminium heatsink that will get heat from the sun.
electrodacus 10 months ago
How does the generator get energy just by heat??
flightdeckreviews 1 year ago
@flightdeckreviews I added some links to my video information above, check them out to learn a little about the Peltier Effect. (I can't add links in comments)
filear 1 year ago