After some discussion on this topic on a popular website HVAC, this was another attempt to do I got it! What is done here I add a little 'tap water in a jelly glass. I manipulated a Schrader valve on the lid. The first part of the test I attached two recovery tanks that were already in a deep void. These tanks are the size of a typical propane tank for a barbecue. A tube is connected to them by the glass. I do this to get a quick change of atmospherePressure in the glass a deep void within a few seconds. As noted, the water begins to boil, but do not get a big change in temperature. The seal was not 100% and did not maintain 30 "of vacuum. (This may in part on changing the water into steam and without pumping). So I then attached a vacuum pump 7CFM directly to the glass jar. There is took a while ', but the temperature' water in the glass began in the room temperature 78 degrees F downspace is below zero. At 27 degrees, the water still does not change to a solid (ice). This would not happen at atmospheric pressure, when added salt or something else. When the water dropped to 22 degrees began to change on a fixed After a couple of pumps I had more liquid water and about 1 / 4 "of ice in the bottom of the beaker laymens my basic explanation. Nomally 's lift water boils at 212 degrees F at atmospheric pressure at sea level and pressure to a boil. more...
Keywords: HVAC, triple, point, water, H20
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