tonight i got a start to my 2x 1Hp cascade.
This one is going to be compact i hope. :p
aim -100c benching
tonight i got a start to my 2x 1Hp cascade.
This one is going to be compact i hope. :p
aim -100c benching
sweet
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thanxs eva200, i cant wait till i got the cash to get ya 3700 clawhammer off ya
then i can have something worth benching.
hahah Still going fast! in the last half year i saw (i think) 3 cascades (if it aint more haha)
GREAT work!
*EDITed by IFMU*
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What size tubing is that, and how tight a diameter did you wind it? It looks really tight. I was wondering how you did that without collapsing the tube.
I was just thinking the same thing, if you did that by hand thats just awsome kayl !!!!
look at that 90 degree bend on the right end, thats tighter yet.
its 1/4" and its about 40mm diameter.Originally Posted by Jonesy
i wound it around desk fan stand.
it took a few goes. This pipe is crap hey, the last roll i had was much thicker walls. this stuff kink not carefull.
tahnxs wdrzal yep by hand. that bend you talking about, got a slight kink, but i got it out and brazed it a tad to re-enforce again.
I will have 2 chilly condensers sitting under the hx and 2 rotaries on the other side.
I also have another idea for a special 2nd stage Suction line hx.
Is it better to have the suction line hx for the second stage before the hx or after the hx cooling the 1150 liquid line.??
i know last cascade it was just too cold and needs to be heated alot.
whats the diameter of the copper tube it fits inside?
Nice coil
But.. I'm afraid that an internal volume of largest pipe will be too large for evaporating (if this largest pipe is
supposed to work as evaporator). Do you remember Jan's autocascade heat exchanger, which was looking as
your? And he had problems, refrigerant wasn't flooding inside largest tube properly and also temperatures
was so bad.
EDIT :
About placing suction pipes, somewhere berkut said it's better to place after interstage HX, but I don't know why..
I hope someone knows and will tell us
Last edited by Tonic; 08-26-2005 at 10:19 AM.
You can flood that HX easily with a proper compressor
cool cool cool!
its sure is a nice hx.. very compact and looks like a waterchiller reservoir!
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Looking good kayl. That IHX looks great! I hope it works as good as it looks
I like that nice compact HX.
That sounds like a loaded question to me
If your talking about sub-cooling your second stage discharge with the second stage suction, the way I did it was subcool the discharge gas before the interstage hx with the suction line hx and then subcool the captube with the suction line. The suction line would be subcooling the captube first.
Did I say that right?
That sounds like a loaded question to me
If your talking about sub-cooling your second stage discharge with the second stage suction, the way I did it was subcool the discharge gas before the interstage hx with the suction line hx and then subcool the captube with the suction line. The suction line would be subcooling the captube first.
Did I say that right?
thanxs guys.
runmc thats what i though.
But recently berkut said to do the second stage.
I think either would help.
i wasnt decided so i did both
its a little hard to follow
but right feed is to 1150 capillary line
left feed is 1150 in.
the tube is 50mm
Nice coil
But.. I'm afraid that an internal volume of largest pipe will be too large for evaporating (if this largest pipe is
supposed to work as evaporator). Do you remember Jan's autocascade heat exchanger, which was looking as
your? And he had problems, refrigerant wasn't flooding inside largest tube properly and also temperatures
was so bad.
EDIT :
About placing suction pipes, somewhere berkut said it's better to place after interstage HX, but I don't know why..
I hope someone knows and will tell us
yeah i remember , i hope its not an issue, i had same problem with map gas hx with coil inside. the 2 extra pipes inside i hope will restrict it a little, and longer capillary maybe.
Buts its sort of short and as hatemi said 1Hp really pump it in and suck it out.
yeah i think the suction line after will really condense the 1150 well i think.
I don't understand what you mean. I was talking about the second stage.
sorry, i meant second stage 1150 liquid out.
i 100% agree with what you said before, thats the way its in the stickies also.
runmc was correct before, compressor to desuperheater to interstage HX
ps what time zone are you in kayl, are you +8 ,+9 or+10 gmt
I would mount that HX as low as it is possible. That way it will be easier to keep it flooded but still without it flooding back to the compressor. Actually I believe it would be a good idea to put the HX below everything else. Make a box/baseplate where it will fit with enough insulation and build everything else ontop of that
cool cool cool!
thaxs for that hatemi makes sense, have a think about that one i will.
wdrzal i check and let ya know.
this is my evap i used 7/32" drill bit in drill press.
then a 3/16" drill bit to clear the channels in a hand drill.
block is 40mm square and cost $10, thats a cheap evap hey.
Canals surely looks better in comparing to previous evaporators
It's not too bad and the tops will be covered with filler, keep in mind that the wall thickness of most soft copper tubing is only 1/32"Canals surely looks better in comparing to previous evaporators
Canals surely looks better in comparing to previous evaporators
its atleast 2mm i think, and what gkiing said is very true as well
Lookin good. There are a couple of spots that look like the channels arent fully cut/connected, is that just an illusion, or what?
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