Quote:
Originally Posted by stevehull
I have consulted on several projects that have used closed loop pond loops for geothermal units. If I recall, all of them were HDPE plastic and about 300 feet per ton. Inexpensive to purchase, but would take a LOT of gas to fill the entire volume. I sure would use inexpensive propane to test this out, then use a higher priced gas.
|
I think that using HDPE for refrigeration gas would be a very, very bad idea.
I have serious doubt about the permeability of HDPE to pressurized refrigeration gases.
I'm concerned about how it would hold up to extreme temperature cycling.
And I also have concerns about how HDPE would hold up to the ravages of pressurized lubricants and refrigerants, whether hydrocarbon or proprietary global warming gases.
If this was a viable idea, it would be possible to find thousands of success stories.
Do they exist?
-AC