Yes, indeed, quite the useful observation, that I'm sure many people miss, that you need to dump the input power out the 'hot side', as well! I guess that choosing a heat sink, and mounting method, are quite critical to optimize performance!
@@SameSkyDevices Oh can I ask a few ball-park questions that should be simple for you. Background: I want to make a small camp rocket-stove & feed it more air via a computer fan. 1 ??What TEC/G module do it use?? 2 ??How might I integrate it to a rocket-like stove?? 3 ??What computer fan/heat-sinks to use?? For ex: BioLite Camp Stove 2 Charging with Fire!! ruclips.net/video/I0DHC-tKqWA/видео.html
Yeah so I want to generate electricity by using my cabin's metal woodstove exhaust pipe. Do I just stick in the hot side of the unit onto the pipe with some traps or something, and as it heats up, it produces electricity into the wires, trough which I will lead it into whatever, or how would I convert heat into electricity instead of electricity into cooling?
The most common newbie frustration with TECs is figuring out that heat dissipation *capacity* is only minor detail when trying to obtain cooling performance anywhere near the theoretical. The most important factor is often overlooked: your *rate* of thermal conductivity away from the hot side. You can slap on the biggest, fattest copper heat-sink and summon a tornado to blow air around it, but all you've done is add a large thermal buffer near the hot side, and you sit there baffled by the cool heat-sink fins & overheating CPU (or whatever) and conclude there's no difference whether the damn thing is on or not. Then you start looking into water cooling and with your first aluminium cooling block you finally start to see results. Then you remember copper is a much better thermal conductor and you get an expensive upgrade. Maybe then you realise there are ways to immerse the hot side in your coolant and skip the metal interface completely. Oops - and one fried server later you finally discover heat pipes.
Hi, do you know a good place to source heat pipes from? I see some on Amazon, but so far, the quality doesn't seem to be that good and they are expensive. I'm looking to buy a bulk amount. Thank you.
What we need is peltier clothes The squares are attached to each other with elastic bands That goes on chest legs and arms When someone drops their temperature and then rises it quickly it makes bllod circulate better Exercise makes the body heat up and then when the blood temperature goes down the blppd moves better Changing body temperature lets people live longer and healthier It also treats Heart problems Asthma Diabetes Alzheimer's And poor blood circulation issues A quick hundred million dollars for anyone who is hungry
@@SameSkyDevices what would be interesting is if your feet are cold and your head is warm if your blood will go to your head and if switching it back and forth would make your blood move up and down i heard it will amd i heard when the body gets cold the blood leaves the viens and goes to the organs
How we select the model to function as an electric generator ? If I apply the 30 dT across the same module , provide 150 watt heat on the hot side and dissipate 110 watts on the cold side, will i get 10 amps and 40 watts of useful electricity ? At what voltage ? 4 volts? How can we calculate that?
Hello sir, yes we could generate dc output, but remember the efficiency isnt always 100%. I mean you can generate power but it gives a weaker output than you expected. Not efficient in total to generate
Thanks for watching! To answer your question, both of these values are determined by the user. You decide how much heat you want to be pumped, in this example 40 W, and then determine how much cooler you want the cool side vs the hot side, in this example we chose 30 W. These values help you determine the current and voltage ratings of the Peltier module needed to achieve these values.
Yes, I agree with the OP's question: How do you determine you'll need to pump a certain _wattage_ of power? Most newbies will only know how much of a temperature reduction (delta) they need, the "wattage pumped" will still be an undetermined quality.
@@ethzero That depends on the application. Lets say you want to build a small fridge and want it to be about 20K cooler then the ambient air. And lets say you know how you'll thermally insulate the fridge also, then you will be able to calculate how much many watts of thermal energy your fridge design loses with a 20k temperature difference to the outside. So what you have to learn about is the physics of thermal transmittance or just figure out how mathematically work with R-values. But there are also online tools that will do the calculations for you and you'll just have to chose the materials of your house, box or whatever you're building. A basic education in maths and physics is just very important when you're trying to do projects like this.
when powering a peltier module like a TEC19006 as example. Rated at 16v 6a, is it best to run it at 80% max power, so something like 16v and only roughly 4.8a? Or can we run these at max power at all times?
Maximum current (Imax) and maximum voltage (Vmax) are operating limits, not the module's absolute maximum rated values. Recommended operation is only up to 70% of these limits because operation beyond limits will result in decreased heat absorption and efficiency as Joule heating increases.
@@SameSkyDevices Thank you for the quick reply. Indeed I had bought a TEC2-19006 recently and was running it at it's Imax and Vmax. Recently just started noticing I should be running it at 60-80% (or in what you're saying 70% power) so roughly 16v and instead of 6a, I'll work on running it at 4.2a instead. Thank you. (Just a hobbiest trying to get more into these things as they're pretty neat!) Although I noticed my peltier TEC2-19006 only has a Qmax of 36w, while your website offers some which much much higher Qmax (which my understanding is the higher the number the more it can remove heat from the cold side and transfer it to the hot side) So I'll definitely try to order some very soon from your website.
What is the most powerful type of pellet for cooling? Because I didn't understand the video correctly I hope you can tell me what is the most powerful type of pellet for cooling 😇
How don't these have more widespread use? They are literal het pumps that fit in the palm of your hand and yet we barely hear about them! So many uses!
Hi, I wanted to cool 30 litter of water from 30°C to 22°C. How many paltier chip it will require or which model I should use. Please if anyone can help. Very urgent need
I'd say 2 60W modules would work better. They have the same total power rating (120W) but with two TECs you have DOUBLE the area, which means instead of a single cooler on one 4x4cm TEC, you can use two coolers in a 4x8cm area now, for much better and easier cooling of the hot side! Also look for "double" TEC2 modules (example: TEC2-19008 or TEC2-25408), if you need a higher temperature difference (to make it even colder). There are also modules made with copper, they are thinner thus they conduct heater faster (TECu-12706 or TECu-12710 is a common model).
Heat transfer should be increased while temperature difference increases (Heat transfer from higher temperature to lower temperature). But on the other hand, In the data sheet indicated that the heat transfer decreases when temperature difference increases. Is that conflict with the law of thermodynamics?
While the most common use of Peltier modules is to cool objects to below ambient temperature, they can be used to either heat or cool objects. The design considerations for heating an object are identical except for the fact that the polarity of the voltage and current powering the Peltier device is reversed (the direction of heat flow through the module is also reversed).
Does anyone know what is the smallest battery possible to use with a(n average size) Peltier module? I'm trying make a small cooling box for a project, something that can be carried around easily in one hand. It looks like 12v 6ah battery is necessary, but those are car battery size. Definitely too big. Would a smaller lithium battery, the kind that fits in a power-drill pack work okay? I have no knowledge of electrical engineering.
Funny I'm here, doing research for the same reason (similar idea). I'm thinking the smaller the volume to cool down the less energy needed. Knowing that watts= voltage X amperage gives you a starting point. So if you go with a 20 watts element, give yourself a 50% buffer (fan, power loss etc.) you are looking at a 30 watts consumption. 30W divided by 12V=2.5A=2500mA of power for 1 hour or 2500mAh So in theory something like a ''Anker Portable Charger, 325 Power Bank'' would power your device for 8 hours. I feel my calculations are probably wrong because you also need to disspiate the heat created, but its a start to Ohms law. Hope that helps even if its 7 months later.
![The best (cheap) Peltier module [test 2]](http://i.ytimg.com/vi/WIf339WNyOo/mqdefault.jpg)
![Yeat & Summrs - GO2WORK [Official Music Video]](http://i.ytimg.com/vi/NEFEwfPcXRA/mqdefault.jpg)
Yes, indeed, quite the useful observation, that I'm sure many people miss, that you need to dump the input power out the 'hot side', as well! I guess that choosing a heat sink, and mounting method, are quite critical to optimize performance!
Thks for keeping it simple for folks like me.
Glad you found it helpful!
@@SameSkyDevices Oh can I ask a few ball-park questions that should be simple for you.
Background: I want to make a small camp rocket-stove & feed it more air via a computer fan.
1 ??What TEC/G module do it use??
2 ??How might I integrate it to a rocket-like stove??
3 ??What computer fan/heat-sinks to use??
For ex: BioLite Camp Stove 2 Charging with Fire!! ruclips.net/video/I0DHC-tKqWA/видео.html
An oscilloscope and nunchaku sitting together in an interesting video,,, oh yeah, I smashed that Subscribe button!
Glad you enjoyed it! Thanks for subscribing :)
Very helpful, Thanks a lot.
You're welcome! Glad you found the video helpful.
Brilliant, thank you👍
You are welcome!
Yeah so I want to generate electricity by using my cabin's metal woodstove exhaust pipe. Do I just stick in the hot side of the unit onto the pipe with some traps or something, and as it heats up, it produces electricity into the wires, trough which I will lead it into whatever, or how would I convert heat into electricity instead of electricity into cooling?
Your going to need a compound to glue the pettier to the stove pipe.
Just checking to see if you would post a video on how you use the numb chucks hanging on the peg board behind you.
Wax on wax off. ;)
I have created project for masters on waste heat management from 60 ton furnace, I am getting 13.27KW output power from 27000 teg modules of bi te
Thank You, Knowledgeable video
Glad it was helpful!
The most common newbie frustration with TECs is figuring out that heat dissipation *capacity* is only minor detail when trying to obtain cooling performance anywhere near the theoretical. The most important factor is often overlooked: your *rate* of thermal conductivity away from the hot side.
You can slap on the biggest, fattest copper heat-sink and summon a tornado to blow air around it, but all you've done is add a large thermal buffer near the hot side, and you sit there baffled by the cool heat-sink fins & overheating CPU (or whatever) and conclude there's no difference whether the damn thing is on or not.
Then you start looking into water cooling and with your first aluminium cooling block you finally start to see results. Then you remember copper is a much better thermal conductor and you get an expensive upgrade. Maybe then you realise there are ways to immerse the hot side in your coolant and skip the metal interface completely. Oops - and one fried server later you finally discover heat pipes.
Hi, do you know a good place to source heat pipes from? I see some on Amazon, but so far, the quality doesn't seem to be that good and they are expensive. I'm looking to buy a bulk amount. Thank you.
What are heat pipes?? You mean a radiator system?
@@jamesshangle See wikipedia's "heat pipe" article
I have the impression you saved me a long way experimenting. I'm going to build a peltier refrigeration skipping directly to heat pipe dissipation.
I have a question,
After looking around online, I don't any Peltier modules larger then a foot in size, why is this?
What we need is peltier clothes
The squares are attached to each other with elastic bands That goes on chest legs and arms
When someone drops their temperature and then rises it quickly it makes bllod circulate better
Exercise makes the body heat up and then when the blood temperature goes down the blppd moves better
Changing body temperature lets people live longer and healthier
It also treats
Heart problems
Asthma
Diabetes
Alzheimer's
And poor blood circulation issues
A quick hundred million dollars for anyone who is hungry
Sounds like the start of the latest fashion trend! ;)
@@SameSkyDevices hair loss weight gain learning problems all because of poor blood circulation
And only dropping and rising bkoid temperature can fix
@@SameSkyDevices what would be interesting is if your feet are cold and your head is warm if your blood will go to your head and if switching it back and forth would make your blood move up and down i heard it will amd i heard when the body gets cold the blood leaves the viens and goes to the organs
Can you sudjest me what kind of battery are suitable to sustain and to power up the Piltier module like that?
How we select the model to function as an electric generator ? If I apply the 30 dT across the same module , provide 150 watt heat on the hot side and dissipate 110 watts on the cold side, will i get 10 amps and 40 watts of useful electricity ? At what voltage ? 4 volts? How can we calculate that?
Hello sir, yes we could generate dc output, but remember the efficiency isnt always 100%. I mean you can generate power but it gives a weaker output than you expected. Not efficient in total to generate
great video
i have a doubt how did you decide that the heat pumped should be 40W for the Temperature difference of 30 degree?
Thanks for watching! To answer your question, both of these values are determined by the user. You decide how much heat you want to be pumped, in this example 40 W, and then determine how much cooler you want the cool side vs the hot side, in this example we chose 30 W. These values help you determine the current and voltage ratings of the Peltier module needed to achieve these values.
Yes, I agree with the OP's question: How do you determine you'll need to pump a certain _wattage_ of power? Most newbies will only know how much of a temperature reduction (delta) they need, the "wattage pumped" will still be an undetermined quality.
@@ethzero
That depends on the application. Lets say you want to build a small fridge and want it to be about 20K cooler then the ambient air. And lets say you know how you'll thermally insulate the fridge also, then you will be able to calculate how much many watts of thermal energy your fridge design loses with a 20k temperature difference to the outside.
So what you have to learn about is the physics of thermal transmittance or just figure out how mathematically work with R-values. But there are also online tools that will do the calculations for you and you'll just have to chose the materials of your house, box or whatever you're building.
A basic education in maths and physics is just very important when you're trying to do projects like this.
when powering a peltier module like a TEC19006 as example. Rated at 16v 6a, is it best to run it at 80% max power, so something like 16v and only roughly 4.8a? Or can we run these at max power at all times?
Maximum current (Imax) and maximum voltage (Vmax) are operating limits, not the module's absolute maximum rated values. Recommended operation is only up to 70% of these limits because operation beyond limits will result in decreased heat absorption and efficiency as Joule heating increases.
@@SameSkyDevices Thank you for the quick reply. Indeed I had bought a TEC2-19006 recently and was running it at it's Imax and Vmax. Recently just started noticing I should be running it at 60-80% (or in what you're saying 70% power) so roughly 16v and instead of 6a, I'll work on running it at 4.2a instead. Thank you. (Just a hobbiest trying to get more into these things as they're pretty neat!)
Although I noticed my peltier TEC2-19006 only has a Qmax of 36w, while your website offers some which much much higher Qmax (which my understanding is the higher the number the more it can remove heat from the cold side and transfer it to the hot side) So I'll definitely try to order some very soon from your website.
What is the most powerful type of pellet for cooling?
Because I didn't understand the video correctly
I hope you can tell me what is the most powerful type of pellet for cooling 😇
But how to force module to use exactly 10 A? When I power my module with about 11 Volts, the module use I=U/R ampers? Am I right?
How don't these have more widespread use?
They are literal het pumps that fit in the palm of your hand and yet we barely hear about them!
So many uses!
Hi,
I wanted to cool 30 litter of water from 30°C to 22°C. How many paltier chip it will require or which model I should use. Please if anyone can help. Very urgent need
I am making a fridge for me camper van, is it best to have 2 small peltier say, 50w each, or 1 120w one , max output for my Veh is 180w, cig lighter
I'd say 2 60W modules would work better. They have the same total power rating (120W) but with two TECs you have DOUBLE the area, which means instead of a single cooler on one 4x4cm TEC, you can use two coolers in a 4x8cm area now, for much better and easier cooling of the hot side!
Also look for "double" TEC2 modules (example: TEC2-19008 or TEC2-25408), if you need a higher temperature difference (to make it even colder). There are also modules made with copper, they are thinner thus they conduct heater faster (TECu-12706 or TECu-12710 is a common model).
Heat transfer should be increased while temperature difference increases (Heat transfer from higher temperature to lower temperature). But on the other hand, In the data sheet indicated that the heat transfer decreases when temperature difference increases. Is that conflict with the law of thermodynamics?
can you use them to heat? I mam thinking side view car mirror.
While the most common use of Peltier modules is to cool objects to below ambient temperature, they can be used to either heat or cool objects. The design considerations for heating an object are identical except for the fact that the polarity of the voltage and current powering the Peltier device is reversed (the direction of heat flow through the module is also reversed).
Does anyone know what is the smallest battery possible to use with a(n average size) Peltier module?
I'm trying make a small cooling box for a project, something that can be carried around easily in one hand.
It looks like 12v 6ah battery is necessary, but those are car battery size. Definitely too big.
Would a smaller lithium battery, the kind that fits in a power-drill pack work okay?
I have no knowledge of electrical engineering.
Funny I'm here, doing research for the same reason (similar idea).
I'm thinking the smaller the volume to cool down the less energy needed.
Knowing that watts= voltage X amperage gives you a starting point.
So if you go with a 20 watts element, give yourself a 50% buffer (fan, power loss etc.) you are looking at a 30 watts consumption.
30W divided by 12V=2.5A=2500mA of power for 1 hour or 2500mAh
So in theory something like a ''Anker Portable Charger, 325 Power Bank'' would power your device for 8 hours.
I feel my calculations are probably wrong because you also need to disspiate the heat created, but its a start to Ohms law.
Hope that helps even if its 7 months later.
Reupload ?
Yes, a very minor update had to be made to the video and RUclips would unfortunately not allow us to save over the original version.
@@SameSkyDevices ok.
Is your voice for real??? It sounds too much pro.
i hooked the hot side to my wife's freezing heart, the peltier froze entirely... need a refund =D
Are these freaking nunchucks in the back? XD
It's entirely possible... ;)
What's up with the nunchucks hanging in the back??? This guy seems way to mild mannered to have them. Anyways, this was very helpful.
What nunchucks? ;) Glad you found the video helpful!