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  1. Shandor

    Really high temperature glass

    Thank you.. that one link alone was very helpful.
  2. Shandor

    Really high temperature glass

    Thanks for all this info. The quartz will be a tube. It must remain clear to let through light. THe inside of the quartz will be a vacuum. the outside of the quartz will be air. The thing making everything hot is at the center of the quartz tube (i cant go into more deatil on that, just know...
  3. Shandor

    Really high temperature glass

    I have searched the forums and have not found an answer to this, usually beucase the temperatures are too low. I am working on a device that requires that I hold a vacuum at 1000-1300 degrees. Throughout the products life, the vacuum will go down to room temperature only to return to the high...
  4. Shandor

    small burner/emitter

    IR stuff, your insight there is exactly what I am looking for. I do not have a grasp of how you came to those numbers. Do you have a link or a textbook that I could look at to renew my knowledge of this type of thermodynamics. So, I'm not fixed onthe 1CM, It was a strawman. I do subscribe to...
  5. Shandor

    small burner/emitter

    25362, Ahhh... yes of course... I just didnt get that this would be 65% of the the total loss. IR stuff, diesel is a good fuel because it is readily available almost anywhere. kerosene (just another diesel grade) and Gasoline would be good. too. Methanol and alcohols dont burn hot enough. I...
  6. Shandor

    small burner/emitter

    Thanks. It cant be an electrical input to create the hot spot. Yes there may be some space before the actual burning chamber to get the gas and fuel to mix well. There are atomizer designs that should allow me to get a good burn. Your value of 1350C jibes well with what I have come up with...
  7. Shandor

    Condensing exhaust in engine

    Thanks. I'll start with some scale of that!
  8. Shandor

    Condensing exhaust in engine

    here we go! http://www.google.com/url?sa=t&ct=res&cd=2&url=http%3A%2F%2Fwww.ndia-mich.org%2Fevents%2Flogistics%2Fday_three%2FWORKSHOPS%2FMs%2520Crawford%2520-%2520Water%2520Generation.ppt&ei=7kIxRtvOCaaagwS50KmOAw&usg=AFrqEzdufiLRcY821bufHQZSJjAc6RJP7A&sig2=c9-PVYPlMG4IdZS92DNlkQ That condenser...
  9. Shandor

    Condensing exhaust in engine

    I may end up doing that. I was just hoping to calculate _something_ to get within range of the right amount of water extraction (if I get out 5ml/min or 50 i would be happy). I really dislike going into a design arbitrarily, I find it wastes a lot of time.
  10. Shandor

    Condensing exhaust in engine

    rzrbk, yes that is something like what I was thinking (for a non-direct contact version), but I am asking about sizing that sort of a system. how much surface area would I need. how big does the AC radiator need to be? dcasto, how did you come up with those numbers? I guess I am trying to...
  11. Shandor

    Condensing exhaust in engine

    I dont need to separate them per se. The spray water and the condensed water will end up in the same reservoir. This reservior will be hot water. I will pump out of that reservior to supply water through a radiator to the sprayer. The extra water will be used for what I need and if there is too...
  12. Shandor

    Condensing exhaust in engine

    It cant be a perpetual motion machine. Are all these people promoting a perpetual motion machine? http://www.iit.edu/~ipro304es02/Condenser1.html http://www.valv.com/literature/documents/tbs-brochure.pdf http://www.specialized-mechanical.com/products/bh_feedwater.html Actually that IIT one is...
  13. Shandor

    Condensing exhaust in engine

    no problem with the dirty water. Im not sure why I would be carrying so much extra water? Either by spray or by cooling loop, the only important water is that which goes through the loop. why would I need to carry extra (besides from dealing with expansion and leakage). Why would the volume of...
  14. Shandor

    Condensing exhaust in engine

    Thanks all. To most of those comments. I'm not married to the water spray idea, it just removes one pump form the entire system. I dont understand why spraying COLD water into the exhaust stream would not condense out more water. but if it is coils, then coils it is. IRstuff, The reason I...
  15. Shandor

    Condensing exhaust in engine

    OK lets say I do that (condense water after the catalytic converter). What do you think is a better design? spraying water into the exhaust stream, or running the exhaust by a cooling coil? more importantly, how do I size these components? I dont know how to calculate the correct flow rate...
  16. Shandor

    Condensing exhaust in engine

    IR stuff, for now I need to make 2 of these devices. Ultimately that device would be mass produced. I need to condense 20ml/min or so (on the whole diesel makes about as much water as fuel it burns, so a kilogram of fuel makes about a kilogram of water). at 20 mpg, each mile should make about...
  17. Shandor

    Condensing exhaust in engine

    Mike, sorry I left out a word and the sentence IS confusing. We have a device that needs to use the water that comes out of the exhaust of a diesel engine. Basically I need to take the exhaust from the engine and condense it because I need that water. I will collect the water and let the gases...
  18. Shandor

    small burner/emitter

    hello, while a mech e, my thermo and chem kinda suck. I'm more of a controls guy. So I am asking for some hlep on a device I am working on. Basically, I want to make a small tube to glow as white as possible over as small a length of the tube as possible. Basically I want to radiate 1000 watts...
  19. Shandor

    Condensing exhaust in engine

    We have a device that needs to water emitted in an exhaust stream of a diesel engine. that is about all I can say about it. So I am basically looking to route the exhaust through a condenser, collect the water and let the remaining exhaust pass through. There are some issues with this. First...

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