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naperlou
User Rank
Blogger
Liquid the way to go
naperlou   5/17/2013 9:25:19 AM
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Al, this is an interesting development in the power electronics field that parallels the ones I have seen in the computing world. Even on high preformance desktop computers liquid cooling is being used.  For servers in a data center, the densities have forced that.  I read a while back that Verizon and at&t were both specing liquid cooling for their data and switching center.

far911
User Rank
Silver
Re: Liquid the way to go
far911   5/19/2013 8:44:05 AM
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I read an article showcasing various data centers situated around different states in the US which were naturally ventilated. The architecture depicting their design and locale was very astonishing.

ratkinsonjr
User Rank
Gold
Re: Liquid the way to go
ratkinsonjr   5/20/2013 9:47:17 AM
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I could also see a scaled-down version of this for use in electric cars. Space and weight constraints are even more severe in electric cars than they are aboard ships. Automakers already have experience with liquid cooling and the coolant could also supply cabin heat, instead of the resistance heating or heat pumps now used with pure electric cars (hybrids still use engine coolant from the internal-combustion engine for cabin heat, of course). 

TJ McDermott
User Rank
Blogger
Replace the entire unit?
TJ McDermott   5/19/2013 7:16:33 PM
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Liquid cooling is more efficient, but also more troublesome to maintain.  Note that Moog's Naval Systems is developing this.  I can easily see the reduced size being very attractive.

The heat has to go somewhere though, so this liquid system would probably interface with some sort of seawater heat exchanger having its own maintenance difficulites.

I can see this unit being quite self-contained - literally sealed.  Uncouple the heat exchanger connections, the line in and load out connections, and the control connection and yank the whole thing if it did fail.

Current technology devices that are air-cooled have replacable modules - only a part of them usually fails (well, hopefully only a part fails).

Don't get me wrong - this is really cool stuff (no pun intended).  But it doesn't come without a price.

apresher
User Rank
Blogger
Smaller design
apresher   5/20/2013 2:36:46 PM
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Interesting thought to use this technology in electric cars.  Wonder if the cost would be prohibitive for quite some time?



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