Peltier Module for Cooling

gengis · 30th June 2005, 09:01 PM

Had anyone tried the peltier cooling module, such as high power amplifier?

http://www.tetech.com/modules/high-performance.shtml

Netlist · 30th June 2005, 10:06 PM

Thinking of cooling a Class A amp one would need something like double the power. One half for the amp, the other say 6A to cool it. I could be wrong as this is what I was thinking from looking at one of the datasheets.
They would perhaps be nice to cool a low power class A/B amp.

/Hugo

gengis · 1st July 2005, 01:43 AM

Hugo,

I meant multiple units, since the each unit is so small.

imix500 · 1st July 2005, 01:48 AM

Hi gengis, I've used peltiers for cooling in several applications. They are heat pumps as you may know and work very well in situations where heat needs to be pulled away fast so that it can be dissapated more slowly via a large heatsink or by transferring the heat to a water cooling system away from the device being cooled. You can also use them to maintain a constant temperature via simple thermal feedback techniques. Large units are readily available on ebay and are dirt cheap compared to new.

gengis · 1st July 2005, 01:53 AM

imix500,

Thanks. I am thinking of sandwiched the peltier between the transistors and the heatsink for much cooler transistors.

Water cooling is a very good idea. But I don't like to play electrical equipment close to water or vice versa. On that front, I like to live not dangeously.

Mr Evil · 1st July 2005, 02:00 AM

Peltiers are great if you need to cool to below ambient temperature, but otherwise the terrible efficiency is not worth it.

Unless you have low humidity, temperature control or very good insulation then you will get condensation, so maybe you should rethink the water-cooling

imix500 · 1st July 2005, 02:46 AM

Indeed, condensation is a BIG concern without the things Mr Evil brought up. Water cooling really isn't that scary if done correctly. I work on large frame lasers consuming 15kw of energy and running ~400v dc at 35A, and are water cooled. I've also water cooled several high energy projects of my own and have had great success. Amazing how much heat water can pull away.

30th June 2005, 09:01 PM	#1
gengis diyAudio Member Join Date: Feb 2005 Location: Midwest--IA	Peltier Module for Cooling Had anyone tried the peltier cooling module, such as high power amplifier? http://www.tetech.com/modules/high-performance.shtml

1st July 2005, 02:00 AM	#6
Mr Evil diyAudio Member Join Date: Aug 2004 Location: Behind you	Peltiers are great if you need to cool to below ambient temperature, but otherwise the terrible efficiency is not worth it. Unless you have low humidity, temperature control or very good insulation then you will get condensation, so maybe you should rethink the water-cooling __________________ https://mrevil.asvachin.eu/

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30th June 2005, 10:06 PM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	Thinking of cooling a Class A amp one would need something like double the power. One half for the amp, the other say 6A to cool it. I could be wrong as this is what I was thinking from looking at one of the datasheets. They would perhaps be nice to cool a low power class A/B amp. /Hugo

1st July 2005, 01:43 AM	#3
gengis diyAudio Member Join Date: Feb 2005 Location: Midwest--IA	Hugo, I meant multiple units, since the each unit is so small.

1st July 2005, 01:48 AM	#4
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	Hi gengis, I've used peltiers for cooling in several applications. They are heat pumps as you may know and work very well in situations where heat needs to be pulled away fast so that it can be dissapated more slowly via a large heatsink or by transferring the heat to a water cooling system away from the device being cooled. You can also use them to maintain a constant temperature via simple thermal feedback techniques. Large units are readily available on ebay and are dirt cheap compared to new.

1st July 2005, 01:53 AM	#5
gengis diyAudio Member Join Date: Feb 2005 Location: Midwest--IA	imix500, Thanks. I am thinking of sandwiched the peltier between the transistors and the heatsink for much cooler transistors. Water cooling is a very good idea. But I don't like to play electrical equipment close to water or vice versa. On that front, I like to live not dangeously.

1st July 2005, 02:46 AM	#7
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	Indeed, condensation is a BIG concern without the things Mr Evil brought up. Water cooling really isn't that scary if done correctly. I work on large frame lasers consuming 15kw of energy and running ~400v dc at 35A, and are water cooled. I've also water cooled several high energy projects of my own and have had great success. Amazing how much heat water can pull away.

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