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Thread: simple cascade questions

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  1. #1
    Xtreme Mentor
    Join Date
    Feb 2007
    Location
    Victoria, British Colombia
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    2,677

    simple cascade questions

    I have transformed this into a worklog- skip the boring talk and go the the end for some piczles



    hey!

    first off, i will ignore any post saying im not ready for a cascade. i know im not. once i get 2-3 units built and properly tuned, then i want to try a small, daily cascade, hoping under 1kw consumption. also summer boredom might kick in

    I was thinking of using a nl11fx (hence the thread in the wanted section) and a ne2134gk(first stage). Would like to use ethylene, but might be a little hard on the smaller compressors. How much are temps affected by using a very small amount of r290?(i mean just static charging with 1150, then tuning with 290 for safety?) Could i use straight r1150 if used a high pressure first stage gas? r410a in first stage with large condenser+300cfm fan+watercooled dsh should help with r410a(maybe blend), and get cold enough to condense 1150?

    Do you guys think this would be possible or not? i am thinking most likely a cap tube system on both stages, but open to valves.

    Really just wanting opinions to think if i should just stop thinking about it as this small of a build won't happen (want to build a more economical unit then rotary cascade). i have most of parts here for build such as: ac and r floated oil sep, 10 plate hx(2 of em), danfoss kb-7 hpco(11 of em), gauges(covered), either 8x10x2" condenser(from detroitac) or a larger version of it, aspera ne2134gk compressor...
    which is why me wants to build it.

    So thoughts and advice greatly appreciated(especially safety)

    regards
    Last edited by teyber; 02-12-2009 at 01:06 PM.
    mentally confused and prone to wandering

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