Good summary of the differences between DI and distilled water Jim.
As for cooling a SS amp I'd just use plain old tap water.
73, Roger (K8RI)
## distilled water is water that has been boiled, and the steam
condensed back to water. Its pure water. AFAIK, distilled
water is not ion depleted. If it is ion depleted, bad news, it will
eat the insides out of any external rad used....esp Aluminum.
## de-ionized water is a chemical process, so you end up with pure
water..... without having to go through the boiling process.
## You cant use 100 % distilled water in any eng or supercharger closed loop
system, unless corrosion and rust inhibitors are used. 100% distilled water
extracts a lot more heat vs a 50-50 mix of distilled water + glycol.
## so dunno if distilled water would work in a SS application. Do you really
require
the high resistivity for a 50 vdc device ? I thought there was an
electrical insulating
barrier between the LDMOS and its mating heatsink. If so, water resistivity is
a moot point.
## Plane jane tap water is used for water cooled dummy loads. 20 kw into 50
ohms = 1414 V peak. Those type of dummy loads are not an issue. Available
up to 200 kw.
Jim VE7RF
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|