I could be wrong, but I doubt Peltier coolers would be a very practical
solution. The typical ones on eBay or at surplus outlets are basically slabs
of a thermelectric material between two metal plates. When a DC current
flows through the material, one plate gets cold, the other plate gets hot.
Unfortunately, they require many amperes of current to obtain a modest
amount of cooling. A typical application is to cool soft drinks in a car
mini-refrigerator. There may be specialized ones for the aerospace and
electronics industry, but I've not seen them on sale at reasonable prices.
To cool a device that dissipates a KW would probably consume more power than
the device itself.
73,
Jim W8ZR
> -----Original Message-----
> From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Bill Turner
> Sent: Thursday, June 06, 2013 6:25 AM
> To: Amps
> Subject: Re: [Amps] Advice needed for SS amp
>
> ORIGINAL MESSAGE: (may be snipped)
>
> On Thu, 06 Jun 2013 00:48:43 -0400, Roger wrote:
>
> >If refrigerated it can greatly increase the transistor's power handling
> >capacity. With computers they just submerge the entire CPU, or CPUs
> >directly in the refrigerant.
>
> REPLY:
>
> Interesting thought. I know there are Peltier junction coolers available
> though I don't know much about them or how expensive they are for an
> adequate size. I see a few listed on eBay.
>
> Will investigate further.
>
> 73, Bill W6WRT
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|