______________________________________________________________________________ | File Name : SUBAIR.ASC | Online Date : 12/13/94 | | Contributed by : Bob Aldrich | Dir Category : ECOLOGY | | From : KeelyNet BBS | DataLine : (214) 324-3501 | | KeelyNet * PO BOX 870716 * Mesquite, Texas * USA * 75187 | | A FREE Alternative Sciences BBS sponsored by Vanguard Sciences | |----------------------------------------------------------------------------| In a recent meeting with Chris Seebach from England, he mentioned a water distillation system which used a vacuum to boil the water and provide pure water. It is a system being promoted by AquaTech, Mr. Seebach's group in Europe. This file provides information that relates to the subject. ------------------------------------------------------------------------------ Msg # 115 Date: 03 Apr 94 21:59:00 From: Keith Morse To: Jim Dunmyer Subj: RUNNING HOT AND COLD ____________________________________________________________________________ JD> > 'splain, if you will, an absorption chiller... > > AND, for you or anyone: > > Can some one 'splain the ammonia or kerosene refrigerators? JD>Marc, > An absorbtion chiller is an absorbtion cooling unit that is used to make cold water. The water ("chilled") is then pumped around the building to what amounts to radiator units to provide environmental cooling. As in Air Conditioning. JD > The chiller operates on the same principle as a kerosene or gas-powered refrigerator, using heat to make cold. I've studied the damn diagrams, and never really did understand exactly how they work, even though a compressor-type is nearly second nature. Someone else here is sure to help out with that. Back in my younger days, I was stationed on a submarine. The primary air conditioning plant for the submarine was an absorbtion type machine. Pretty simple actually, the interior of the unit was purged of any non- condensable gases and very low vacuum was established (close to 0.00 mm of mercury as possible). At this low vacuum water will actually boil at close to 32 degrees fahrenheit. A fresh water system (called chill water) was used to "transport" the cold to the ship. The returning "hot" water ran through a heat exchanger inside the air conditioner where heat was transferred to the water that existed in the low pressure environment. The water boiled and the resulting steam or water vapor or whatever was absorbed by a strong concentration of lithium bromide (a salt). The diluted lithium bromide concentration went to a different section of the air conditioning, was heated by steam thus reconcentrating the lithium bromide. The water driven off by that second heating was condensed by a seawater heat exchanger. The resulting condensed fresh water was reused to cool the chill water water. The process is similar for refrigerators that use a heat source, rather than a compressor. Most use a mixture of hydrogen and ammonia, but the process is very similar to the method I described above. They certainly are quiet and don't inherently require electricity. Don't know about efficiency, though. The air conditioner on the submarine was rated for 200 tons of air conditioning, whereas a refrigerator is something on the order of 1 ton. As always the standard disclaimers apply. Happy energy transferring. --- WM v3.10/92-0662 * Origin: NWCS Online + 18 Nodes + 13 Gig + (503) 620-5910 + (1:105/362.0) SEEN-BY: 102/2 138 355 435 741 752 756 760 851 1302 105/30 112/1 128/1 SEEN-BY: 132/888 147/7 170/400 203/23 206/1701 209/207 209 710 720 SEEN-BY: 270/101 290/627 345/31 396/1 640/75 3615/50 PATH: 105/362 50 3615/50 396/1 209/209 102/2 752 756 ------------------------------------------------------------------------------