Heatsink Question

[thescreensavers]

Are there any Heat sinks out there, that can dispace 1400 or 1850 BTU/HR? with out being too noisy?

 

[Rubycon]

That's over 500W. Depending on your target temperature it's going to be difficult with air to air cooling and keeping size manageable at reasonable volume levels. Otherwise liquid cooling will be required.

A turnkey heatsink with that capacity does not exist.

 

[thescreensavers]

That's over 500W. Depending on your target temperature it's going to be difficult with air to air cooling and keeping size manageable at reasonable volume levels. Otherwise liquid cooling will be required.

A turnkey heatsink with that capacity does not exist.

1400 BTU/Hr is 400watts, It does not need to fit in a computer. How large are we talking? Its to cool a Thermoelectric Cooler, for the hot side. 50mmx50mm, I am trying to keep it air cooled. Need to find a way.

 

[davidrees]

According to the google converter, 1400 BTU/hr is over 400 Watts.

http://www.google.com/#hl=en&q=1400+BTU%2Fhr+to+watts&aq=f&aqi=&oq=&fp=1c443ffcb5a5cce1

Even the most ridiculous CPUs are only 140 Watts or so of thermal output.

Can you tell us more about what you are doing?

If this is a non PC application, then it is certainly possible to dissipate that much heat, you just need a large enough heat sink with enough surface area and you need to account for air flow and ambient temperature.

 

[Rubycon]

1400 BTU/Hr is 400watts, It does not need to fit in a computer. How large are we talking? Its to cool a Thermoelectric Cooler, for the hot side. 50mmx50mm, I am trying to keep it air cooled. Need to find a way.

You specified a range so I took the highest. You always use the worst case scenario to avoid going in the red. 😉

TE coolers are often mated to waterblocks at these power levels.

 

[davidrees]

Are there any physical size constraints? What is the shape and surface area of the TEC?

What is the environment and can you have a fan?

Do you know any friends who are mechanical engineers? there is actually software that can calculate this stuff. I think it's called Wildfire Pro - or something like that.

 

[thescreensavers]

I am just messing around with a 400 watt TEC more or less, Ambient temps could be 90f, 80f. Surface area on the TEC is 50mmx50mm, I understand you would need a large heatsink with a large area of surface and a fan blowing air over it. Would fabbing a 100x100mm copper plate and putting it in the middle of the 50x50mm be overall efficient to spread the heat to double the area?, Eventually it wont work as well if it gets too big I assume...

There is no size restraints at all... for the heatsink. What ever size can work.

I was looking at some industrial heatsinks but, if they have a surface area of 1 foot, and this cooler only uses 50mmx50mm of this foot, basically most of the heat sink is useless? ( is that right?)

I sent an email to Croshair, to find out how much BTU there best Heatsink can displace.