Questions tagged [peltier]

The Peltier effect is a reversible physical process which is exploited in Peltier cooler/heater. The flow of current through this device pumps heat from one plate of the device to the other. This can be used to both heat and cool electronic components.

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81 views

Advice for using 60 watt peltiers? Is 12V 3A enough to get the job done?

The weather right now is so bad and hot! A friend of mine runs a mobile stream and his phone refuses to charge when it is hot. His stream crashes because he can't charge his phone or it overheats. Not ...
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General Peltier (lack of) cooling - why?

The physics here are beyond simple. 1ml of water requires 4 watts of cooling to drop 1 degree C. Thus: 30ml x 4W x 33c = 3.96kW (IE cool 30ml by 33c needs 3.96kW of cooling) The TEC01-02015 spec ...
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42 views

Peltier module voltage drop

I have built the following circuit - first, I soldered together all the mt3608 components on PCB and tested it (I created DIY voltage step up module), then using jumper wires I connected the battery ...
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Cooling Peltier Maths

I want to construct a peltier cooling system. However, I have limited mathematical skills. Can I ask how to do the maths to calculate how much temperature differential can a specific peltier cool ...
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57 views

Water-Based Heat Sink

I am trying to incorporate a TEC in a portable system. The heat from the interior of the system needs to be transfered to the exterior where it can be dissipated freely into the environment. Now, I ...
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77 views

Peltier Cooling

I am trying to incorporate a peltier module on a relatively small space. Is there a way to incorporate a 40 x 40 mm heat sink (+- 10mm) to a 40 x 40 mm peltier module in such a way that it can run for ...
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37 views

Current Consumption

I have a 3S LiPo as a power source for my circuit. My load consists of a peltier cooler module, a DC fan, and a water pump all running at 12V. Now, the question is: if i incorporate a DC fan that has ...
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12VDC Switching to 17VDC high amerage

It's been years since my undergrad work as an EE. I am a physicist and medical researcher now, but, as a startup, we all take on anything we can. Let's face it... 12VDC high current PSU's are cheap. ...
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Thermoelectric Module and DPDT switch

I am trying to develop a product using thermoelectric modules. This thermoelectric module (TEC) is a heat pump that is capable of pumping heat from one side into the other by applying voltage. By ...
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1answer
55 views

General Peltier-tivity

[EDIT: Found a couple of 12715 units in the pile that did suck the full amperage, but despite excellent cooling of the hot side, could not deliver much cooling.] I'm waist deep in project to keep ...
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62 views

Energy lost in in Peltier device?

Suppose I power a Peltier device to heat up/cool down some water. Then I later use the same Peltier device, in reverse, to convert the separated heat energy back into electricity. I have read ...
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Will this Cooler Master i70 CPU cooler work for Peltier Module TEC12706? [closed]

I am trying to make a Peltier cooler using TEC12706 and CPU coolers, the data sheet doesn't mention the cooling capacity of the cooler. Cooler Master i70 A TEC12706 typically works on 12V and takes ...
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41 views

Peltier AC Operating curve

I was looking at the product description of a 300W Peltier AC (Link) and encountered a curve like this While I'm aware that there will be a dT between the Peltier hot and cold sides, I am not able ...
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Peltier cooling only half of one side

I got my peltier device three days ago and plugged it in as soon as I could with a heatsink. On the first few runs it got cold enough that there was condensation forming on it's cold side. But now ...
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55 views

Peltier behaves strangely

I've been trying to test my Peltier moodule (tec1-12706) with 2 1.3V batteries (2.6 in total in series) connected parallel to the module.. ...
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56 views

Is there a name for this effect? [closed]

Is there a name for the point where a Peltier cooler loses power and the cold side becomes warmer than the temperature around it and vice versa after power has been lost?
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51 views

Peltier thermal electric generator power output

I am new to the Peltier thermal electric generator scene and I am wondering if you could recover some of the electrical energy needed for the cooling of a refrigeration system by using another Tec as ...
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340 views

Thermoelectric cooler powered by 12V battery too hot?

I am very much an amateur when it comes to this stuff. Basically I have a set up that goes as follows: Aluminum plate -> TEC (cold side) -> TEC (hot side) -> heat sink -> fan. The battery is 12V ...
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31 views

Peltier high limit temperature

Let's say I placed a peltier on the stove, at what temperature will the device fail? Would a temporary failure happen, if so what temperature and is there a permanent failure temperature, whereas the ...
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119 views

H-bridge design for Peltier

I am using a pelter module to cool a chamber, I also use the same module to heat the chamber just by reversing the voltage to to.(separately tested and working). This lead me to look for a H-bridge IC ...
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38 views

tec laser diode cooling

I would like to cool a laser diode, which has maximum thermal power of 1 W (actually according to datasheet should not be higher than 830 mW). The operating temperature range is (25-30) Celsius. I ...
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3answers
127 views

Limiting Cold Side Temperature on Peltier

I'm trying to cool my computer's CPU by sticking a peltier between the CPU and the heatsink, however I don't want to deal with preparing my motherboard and for condensation. Therefore I want to keep ...
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43 views

Thermoelectric Cooler sensor

My team and I are testing our Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A from Adafruit. We are using an external power source and sensors to get readings for the current, voltage,...
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Is it possible to produce electricity with a candle via converting it on a 12v TEC peltier?

Im a Grade 12 Student and planning to work a project on our research paper with an engineering course related proto type machine. Im planning to make a TEC1-12706 12v peltier converts and produce ...
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55 views

Peltier temperature change speed

I currently have four 12V 6A peltiers connected to PID's, heatsinks, a power supply and I use Labview program to control them. What I want to achieve is changing the temperature of the Peltier devices ...
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193 views

12V PWM controller for 12V fan that gets faster with the COLD

I need a controller for a 12 V - 1A fan, blowing on the cold side of a Peltier element to keep it at constant temperature. I have the hot side under control. I have seen multiple cheap PWM ready-to-...
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66 views

Assemble Peltier Cooler to Li-poly Rc Battery

I have procured a thermoelectric cooler (TEC, this one) and my purpose of the TEC is to produce current for the Li-poly RC battery to increase its battery life. The Li-poly RC battery has 7.4V stated ...
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68 views

Is there a SSR like device that can switch at kHz frequencies?

I'm designing an industrial control system that incorporates several peltier devices. As I understand it, these devices are more efficient when driven with a constant voltage, vs being cycled every ...
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122 views

Need help in wiring two Peltier Plates together

I have two of the BXQINLENX 55x55MM 7V 1.25A TEG1-241-1.4-1.2 Thermoelectric Power Generation Peltier Modules. I am trying to make something like an Ecofan by sandwiching them between one aluminum ...
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687 views

TEC1-12706 Peltier run from diffirent voltages

My question relates to a video I saw on youtube. In this video, the user is cascading 3 TEC1-12706 peltier modules to achieve temperatures of -50 on the cold side of the cascaded peltier. The TEC1-...
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748 views

How do electrons carry thermal energy in Peltier coolers?

I've read that when electrons enter from metal to semiconductor type N, they gain thermal energy and make that side cooler and the reverse happens when they leave semiconductor to the conductor. Why ...
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72 views

Overvolting Peltier

I currently have a 12v 6A Peltier bolted to 2 heatsinks, with 2 separate fans. The old PSU I used for this system went kaput, so I would like to find a temporary replacement before I buy a new power ...
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Converting the output of a Proportional Control System to a meaningful drive of a Peltier

Trying to create a PID controller for temperature control using a Peltier element, I decided to take it step by step and create first the Proportional and then the Integral and the Derivative ...
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How to connect the Peltier module to TEC W1209?

I am trying to control my Peltier module using the W1209 TEC. I set the P0 to H, so that it should provide voltage to my Peltier module until the temperature reaches the set temp. The LED turns on ...
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69 views

Will thermocouples sharing a common wire create inaccuracies during measurement?

Specifically, I've been working with pre-existing temperature cables which are T-type thermocouples which share the same Constantan wire. My question is if one of the thermocouple junctions is heated ...
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52 views

novice user needs assistance for three peltiers being connected to a single power source

I am a novice user, and I am not very familier with Peltier setups, for my old CCD astonomy camera. The Peltier that was broken in the camera is not supplied by the manufacturer anymore, nor will they ...
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93 views

Bipolar switched-mode power supply

I'm looking to design a power supply that, given 24V input, can deliver +/- 0-12V output at 3A. It will be used to drive a Peltier module in either heating or cooling mode, which is why it must be ...
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62 views

Thermo Electric Can Heater / Cooler Heating vs Cooling Speed

I recently purchased a cheap (~$25) 36W thermoelectric cup holder designed to heat or cool a soda can sized object. It works very quickly for cooling and draws about 3A at 12V. For heating, it heats ...
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48 views

Is it sufficient to cool 4 TEC1-12708 (Peltier)?

Recently I tried to cool water with one TEC1-12706 (waterblock+tec+cooler) but for a lots of reasons (that I am now aware) it didn't cool water (1L in a closed cicle) under or even near 0ºC. I ...
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183 views

Buck-converter dynamic output-voltage using digital-potentiometer

I am driving a load at 40 V, 4.8 A, and would like to dynamically change the voltage being supplied to it, ideally creating a 2-40 V range with increments of <0.1 V. To achieve this, I am thinking ...
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247 views

Confusing peltier efficiency COP/Volts and COP/Amps graphs question

Is peltier efficiency (COP) based on current and not voltage and could I have any voltage I want and get a high COP if I limit current? Whats confusing is that one graph shows efficiency based on ...
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83 views

Is Peltier Cooler Good for Outdoor Application?

I have a Raspberry Pi 3 w/ an Intel Movidius Neural Network Compute chip attached via USB. It has recently come to my attention that I may be asking the Movidius chip to perform too much work and as a ...
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10answers
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Heating a tube of aluminium electrically

I need to regulate the temperature of the surface of a tube of aluminium. The tube is used as a mandrel for composite molding/curing, so the target temperature is below 100C. Currently, there is no ...
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1answer
166 views

What can you tell about our circuit diagram? Any suggestions?

This is our circuit for our research which is the conversion of heat to electricity. The TEG module will convert the heat to direct current. It will give energy to the voltage booster moduleto and the ...
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7k views

How many cubic feet can 1 peltier cool efficiently?

I want to build a mini fridge, however, I want to build it a bigger than the ones showed in the tutorials I've watched. For that I assume I need more than one peltier to cool it. However, for that I ...
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3answers
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How efficient is a Peltier TEC1-12706 and TEC1-12715

I need to know some details about Peltier coolers before moving into making an air-conditioner. I have watched several videos on YouTube that demonstrate making air-conditioners with Peltier thermo-...
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267 views

how to control peltier element with microcontroller

I need a little help from experienced people. I want to control a Peltier element with a microcontroller, with PWM. May? The peltier element has the following parameters: Imax=8.3 A, Vmax=3.8V.Ok... ...
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485 views

Current limiting resistor on peltier element

I have a 12v/22A DC switching power supply and 9 peltier elements rated for 12v/6A. I would like to limit current to 2A per peltier element. I don't know how to calculate the impedance (in ohms) ...
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1answer
84 views

High-Power H-Bridge - Heating Calculation

Background Hi there, I'm using a H-Bridge to drive a thermoelectric cooler (TEC or Peltier) module. I'm not here to discuss control circuitry/drive voltages/slew rates/switching losses, which I know ...
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153 views

Peltier question power, pwm and voltage

There are little to none information about Peltier in the internet, especially in team of powering it, so here I try to ask few question about it. Here is the particular one that I am referring to: <...