Posted by Vern on May 21, 2001 at 20:02:37:
In Reply to: Biodegradable oil in my boilers? posted by Sam on May 21, 2001 at 08:12:04:
: We run a fleet of 5MBtu/h mobile boilers as a part of a pipeline repair system. Naturally they don't last very long (fresh, cold, dirty water; everytime = oxidation, shock, overheated tubes). We've started experimenting with a stainless steel heat exchanger, and now keep clean treated water in the boiler. I'd like to use a biodegradable oil instead of the water so as to run to 150 C without having to worry about everything being pressurized. I've heard of this kind of oil for hydraulic systems, but don't know if it can handle the temperatures reached inside a boiler. Does anybody have any pearls of wisdom for me? Has this been tried before? My thanks in advance
Sounds to me like you need something like a Dow Therm vaporizer.
You use Dow Therm fluid or equivalent, heat it to the temperature you want,
which is usually low pressure, it transports the heat to your system,
then returns. That way you don't have the worries about clean water etc.
If you need one, there's a guy here in Fresno who has about a 200 HP
all stainless steel wasteheat boiler with heat exchanger.
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