Take some courses and become HVAC certified. I'm not sure what the certifications are or what they entail though. Check your local community college, they always got stuff like that. Your best bet would be to hit up a trade school though.
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Take some courses and become HVAC certified. I'm not sure what the certifications are or what they entail though. Check your local community college, they always got stuff like that. Your best bet would be to hit up a trade school though.
lolk thanks...dumb questions have to be asked lol...
ill start there..but since im 15 i think i might have to go through high skool first...
but anyways...on topic.. helium has a boiling point of...i think 4 kelvin if that would be fun to play with...i have no idea how good ited be in a phase change system tho lol.
http://www.amazon.co.uk/exec/obidos/...864145-9503065Quote:
Originally Posted by Hound
Is a very good place to start if you want to learn on your own. Depending on where you live, you can go to a trade school to learn to be an hvac technician. Most colleges with engineering programs offer hvac courses as well. I've been going through the book slowly when I have free time (and spare brain cpu cycles) and havent been let down yet. I got the textbook, workbook and cdrom for like $50 on half.com. If you were to enroll in a college hvac/r course, there would be a very good chance that these would be your textbooks. I haven't been disappointed so far, although I'm only into chapter 4 or so :p:
Quote:
Originally Posted by Hound
Think you have a ways to go ;) You should look up what is involved in getting something 4 degrees away from absolute zero.
damn men!see this beast http://www.sanyo-biomedical.com/indexconserveren.html (click on -152°C) what gas would this use?anyone knows its cost?
Thats probably for a passive heatload and no good for our applications without serious modification.. Thats a monster tho!!
not to mention it'd run you some SERIOUS money.. we're talking like, hospital and lab-grade stuff right thereQuote:
Originally Posted by gloatlizard
CaptainCascade could give you an idea about that type of equipment. I think his pop's company specializes in super-subzero chiller/fridge sales and service. I think they're called Los Angeles Cascade.
looking foward to see some changes... hope you make a hell of a machine
wonder if solid propane combusts?
soild propane would make great easy lite fire place logs, ;) You can find them in cryo freezer section in your supermarket :D
well done mate!!
any updates?
well i gotta start somewhere...might as well be ahead of everybody else :DQuote:
Think you have a ways to go You should look up what is involved in getting something 4 degrees away from absolute zero.
Quote:
Originally Posted by chilly1
Why don't you use POE oil with R14 ?
actually he wants to avoid having the R14 carrying the oil. so if R14 and mineral oil dont mix up well, thats good. you put an oil separator/phase sep and you can remove most of the oil+r290 without much trouble.
I checked some days ago on Airliquide datas website ( http://www.airliquide.com/en/busines...D=61&UNNumber= ) what oil has to be used with R14.
Quote:
Hydrocarbon based lubricant : Non recommended, significant loss of mass by extraction or chemical reaction.
Quote:
Fluorocarbon based lubricant : Satisfactory
Thanks I looked that up too.. I have to find a better alternative.. Looks like there is some chemical reaction with hydrocarbon based oils.. So it wil need to be either Alkylbenzene of POE I will need dto do a little more searching..Quote:
Originally Posted by zytrahus
I would like to use an oil that will not carry in R14 it would make life easier.
Chilly you wrote somewhere in this post that you were gonna use 507/1150 in the first stage.. Would my LS be able to cope with a little 1150? and would it do a significant difference u think?
Any updates? :)
Would like to see -150°C loaded! :D
.... and I think anybody else would like to see that too! :D
Working on the 7 rebuild problem is the R50 (Methane) has too little capacity by itself... WE have some new gasses inbound for the mid stages ...
You never cease to amaze me chilly. Keep us updated.
Build for this starts when I have concluded the final testing on the autocascade sets I am building now.
you havent given up on the -175c target have you???
just subscribing =)