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#1
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Liquid oxygen equipment for glider
Has someone ever implemented a liquid oxygen system inside a glider?
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#2
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Liquid oxygen equipment for glider
Bruno Maes wrote:
Has someone ever implemented a liquid oxygen system inside a glider? Of course! See http://en.wikipedia.org/wiki/Perlan_Project. Google is your friend, Tony V. http://home.comcast.net/~verhulst/SOARING |
#3
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Liquid oxygen equipment for glider
I looked into this seriously a few years ago. The earliest aviation O2
systems in WW1 used liquid oxygen systems. LOX has some advantage and some serious disadvantages. Positives: Long duration supply for extended wave flights. Light weight compared to compressed oxygen of comparable duration. Small size Negative: Short shelf life . i.e. "use it or lose it". Difficult support system. Essentially, LOX must be manufactured on the gliderport for it to make sense. Such "air reduction" devices do exist for medical LOX but they are expensive. LOX can be dangerous for inexperienced people to handle. The temptation is that used "wearable" medical LOX systems are available on E-Bay cheap. Bill Daniels "Tony Verhulst" wrote in message ... Bruno Maes wrote: Has someone ever implemented a liquid oxygen system inside a glider? Of course! See http://en.wikipedia.org/wiki/Perlan_Project. Google is your friend, Tony V. http://home.comcast.net/~verhulst/SOARING |
#4
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Liquid oxygen equipment for glider
"Bill Daniels" bildan@comcast-dot-net wrote in message . .. Negative: Short shelf life . i.e. "use it or lose it". Difficult support system. Essentially, LOX must be manufactured on the gliderport for it to make sense. Such "air reduction" devices do exist for medical LOX but they are expensive. I have a bit of experience using medical lox and the above need not be true. Patients who use lox keep a device at home that looks a lot like at beer keg. A guy in a truck comes around every week or two to top the "keg" off. The oxygen can be used straight from the "keg" or transfered to a portable oxygen system. Assuming that there were enough users to make it pay, that same truck could come by a gliderport. Naturally, it is those portable oxygen systems that are of prime interest to aviators. Many of them have a pulse system to conserve oxygen and make it last even longer. I have no idea if they would be safe for aviation use, but I think that we can safely assume that they are not built with that in mind. LOX can be dangerous for inexperienced people to handle. Yes. The temptation is that used "wearable" medical LOX systems are available on E-Bay cheap. Yes. I covered that above. Vaughn |
#5
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Liquid oxygen equipment for glider
On Sat, 24 Feb 2007 16:10:38 GMT, "Vaughn Simon"
wrote: "Bill Daniels" bildan@comcast-dot-net wrote in message ... Negative: Short shelf life . i.e. "use it or lose it". Difficult support system. Essentially, LOX must be manufactured on the gliderport for it to make sense. Such "air reduction" devices do exist for medical LOX but they are expensive. I have a bit of experience using medical lox and the above need not be true. Patients who use lox keep a device at home that looks a lot like at beer keg. A guy in a truck comes around every week or two to top the "keg" off. The oxygen can be used straight from the "keg" or transfered to a portable oxygen system. I take it the capability to fill portable containers is the motivation for using lox, as opposed to using a concentrator? rj |
#6
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Liquid oxygen equipment for glider
"Ralph Jones" wrote in message ... I take it the capability to fill portable containers is the motivation for using lox, as opposed to using a concentrator? The motivation for using lox is that oxygen systems can be much smaller and lighter because the oxygen is in its most dense form and no high pressure tanks are needed. This is why they are so popular for medical uses. A patient can sling a LOX flask over a shoulder and go out for virtually all day; the same mission with high pressure tanks would take an oxygen cart. Vaughn .. rj |
#7
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Liquid oxygen equipment for glider
Bruno Maes wrote:
Has someone ever implemented a liquid oxygen system inside a glider? What mission do you have in mind? -- Eric Greenwell - Washington State, USA * Change "netto" to "net" to email me directly * "Transponders in Sailplanes" http://tinyurl.com/y739x4 * "A Guide to Self-launching Sailplane Operation" at www.motorglider.org |
#8
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Liquid oxygen equipment for glider
Not really a mission in mind but more an engineering challenge...
What equipment of small size does exist? Is it easier to use than the classical A14 oxygen regulator or EDS? I searched a lot on the internet for pictures, detailed schematic etc...but found nearly nothing except very general text I can't use. Bruno On 24 fév, 19:12, Eric Greenwell wrote: What mission do you have in mind? |
#9
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Liquid oxygen equipment for glider
"nimbus" wrote in message ups.com... "What equipment of small size does exist?" Medical systems can be about the size of a thermos flask, and (these days) often include a pulse system. Vaughn |
#10
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Liquid oxygen equipment for glider
"Eric Greenwell" wrote in message news:8e%Dh.667$RN6.579@trndny07... Bruno Maes wrote: Has someone ever implemented a liquid oxygen system inside a glider? What mission do you have in mind? -- Eric Greenwell - Washington State, USA Eric, One step at a time, buddy. First we get the LOX tanks on-board, then we add the kerosene . . . bumper Minden NV QV & MKII |
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