Plastic KETER sheds

[SUNRAY]

Fair enough, but I still don't really understand where the estimates/guesstimates/whatever of pressures you've used have come from. Are they perhaps pressures which you 'know' (or, at least, 'believe') to be the range of pressures used in typical real-world domestic fridges and freezers? As I've said, I personally haven't got a clue about the pressures!

Domestic freezer compressors are commonly capable of 400PSI but that doesn't mean it's the pressure the system is running at as it's a leaky system.

 

[JohnW2]

This is all well beyond my experience but IIUIC there was only one refrigerant available in the early days.

I find it hard to believe that it has ever been possible for one refrigerant to be suitable for all refrigeration purposes

I may be wrong and will happily accept being corrected.

As I keep saying, I really don't know. I think the same is probably true of you, but yiou keep making suggestions and comments which may or may not be correct. If/when I have a bit of time, I might try to do some reading.

Where do you get +20ºC from for chiller temp?

I didn't - the +20°C figures relates to aircon.

 

[JohnW2]

Domestic freezer compressors are commonly capable of 400PSI but that doesn't mean it's the pressure the system is running at as it's a leaky system.

As I keep saying, I really don't know. I think the same is probably true of you, but yiou keep making suggestions and comments which may or may not be correct. If/when I have a bit of time, I might try to do some reading.