- #1
Stephen DG
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Boiling point in a vacuum...
Gidday, I am as new here as it gets, and I have a question to post.
I have been having a (heated) discussion with regards to the temperature that water boils in a vacumm. Given: @ 10in Hg water will boil at 192F. If you had a pressure reading of 29.7in of mercury water will boil at 32F The pressure on the water has been reduced and the boiling point has lowered. Standard evacuation process of any AC/ Heat Pump maintenance.
Question: In an Air Conditioning, closed system, when a vacuum is created, moisture is pumped out during evacuation or Deep Vacuum 29in Hg. Will this lowered pressure be enough to boil off any mineral oil. Given that most MSDS states that mineral oil boils @ 500-625F. Will the pressure be low enough to boil/vaporise the mineral oil in this system?
Thank you
Stephen
Gidday, I am as new here as it gets, and I have a question to post.
I have been having a (heated) discussion with regards to the temperature that water boils in a vacumm. Given: @ 10in Hg water will boil at 192F. If you had a pressure reading of 29.7in of mercury water will boil at 32F The pressure on the water has been reduced and the boiling point has lowered. Standard evacuation process of any AC/ Heat Pump maintenance.
Question: In an Air Conditioning, closed system, when a vacuum is created, moisture is pumped out during evacuation or Deep Vacuum 29in Hg. Will this lowered pressure be enough to boil off any mineral oil. Given that most MSDS states that mineral oil boils @ 500-625F. Will the pressure be low enough to boil/vaporise the mineral oil in this system?
Thank you
Stephen