How many Peltier elements can I use in my power outlet?

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Discussion Overview

The discussion revolves around the use of Peltier elements for cooling applications, specifically focusing on the electrical limitations and configurations when connecting them to a power outlet. Participants explore the implications of voltage and current ratings, power supply units (PSUs), and the potential risks involved in their setup.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant questions whether they can connect multiple Peltier elements to a single outlet, given the current ratings of the elements and the outlet's limits.
  • Another participant emphasizes that Peltier modules operate on DC current and cannot be plugged directly into AC power outlets.
  • Concerns are raised about the implications of connecting a 600W PSU to three 180W Peltier elements, particularly regarding the total current draw and safety risks.
  • Some participants highlight the importance of understanding the relationship between voltage, current, and power, noting that 15A at 230V is not equivalent to 15A at 12V.
  • There is a discussion about the efficiency of PSUs and how that affects the overall power consumption and safety of the setup.
  • One participant expresses frustration over perceived misunderstandings in the discussion and urges others to read the entire post before responding.
  • Another participant offers to provide assistance based on their experience with Peltier cooling projects.

Areas of Agreement / Disagreement

Participants express differing levels of understanding regarding basic electrical concepts, leading to some contention. While there is a shared interest in the topic, no consensus is reached on the best approach to safely connect Peltier elements to a power supply.

Contextual Notes

Participants mention the need for a clear understanding of electrical principles, such as power calculations and the function of PSUs, but there are gaps in knowledge that remain unaddressed. The discussion also reflects varying levels of familiarity with electrical engineering concepts.

Who May Find This Useful

This discussion may be useful for individuals interested in DIY cooling solutions using Peltier elements, as well as those seeking to understand the electrical considerations involved in such projects.

  • #31
HomeExperiement said:
Books be like "Ok, here are 300 pages of formulas, now go ahead and figure all your projects out by yourself." And by the end of the book you'd still be asking here the same questions lo learn how things actually work. In these replies to my topic there weren't a formula that I did not learn at school.
You are making assumptions about 'all books'. You may not like the Maths of Science but, if you agree that it helps a lot to use arithmetic to keep tabs on your finances then the same thing applies to 'Scientific' projects. They all need some formulae and calculations - if you want to avoid a dumpster full of failed equipment.
 
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  • #32
Guineafowl said:
P=IV P=IV P=IV. Burn the equation into your brain.

Easier to do with this equation: P=IE

P=IE P=IE P=IE

Come on now which of these series are easier to remember?
 
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  • #33
krater said:
Easier to do with this equation: P=IE

P=IE P=IE P=IE

Come on now which of these series are easier to remember?
I'm very partial to a bit of Steak and Kidney PIV and chips, aamof.
 
  • #34
krater said:
Easier to do with this equation: P=IE

P=IE P=IE P=IE

Come on now which of these series are easier to remember?
Which is better:

PIVVIRQIT
Or
PIEEIRQIT

?!
 

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