Good site! Thanks!
How much was the tube and shell and what size did you get?
http://www.exergyllc.com/index.html
Building an IC69 Heat Exchanger
- Thread starter Hydrosun
- Start date
Good site! Thanks!
How much was the tube and shell and what size did you get?
http://www.exergyllc.com/index.html
Breakover
Member
It was $2000 for a non electropolished 1.5" x 15" PN 00455-07
The EP model (00455-02) was $800 more.
I look forward to hearing your results. The shell and tube would certainly be easier to clear than a tube over counter flow, when full of -30C butane.
Breakover
Member
My apologies. I just found out that the 00455-07 is in fact the 1.5"x10" non EP model. It is in fact $2000. The right part number for the 1.5"x15" non EP is 00455-08 and is $2110.
Bummed that i was sent the wrong size but I thought I would clarify for everyone's benefit.
What are you using on the cool side?
How are you mounting it?
I plan to mount ours vertically, so it will be gravity draining, and bleed off the coolant when I'm not injecting, so as to not turn the butane in the heat exchanger into a solid gelatinous plug.
While SPR partner Joe continues to experiment with liquid N2, and vapor from liquid N2, WW is pursuing a design involving circulating a 50/50 Methanol mixture using a mag drive gear pump rated for -40C. Not just for injection, but for the overall system cooling needs.
My alternative solution was to blow the exchanger clear of butane with vapor when not in use and refill with liquid butane just before injection.
If the temperature and flow rate on one side of the heat exchanger is fixed, we typically effect the output temperature of the product by the rate it is pumped through the other side of the exchanger. The slower the flow and longer the residence time, the lower temperature the end product will be, and vice versa.
Being able to play with both sides of the exchanger of course makes it easier, but the point is, the formula for heat transfer is area, X thickness X transfer rate K X delta temperature X time.
With a given heat exchanger, we can effect only temperature and time, by changing the temperature and flow of our coolant, or the rate that we put the butane through the exchanger.
If we are filling an empty exchanger, the flow rates are higher than when the butane reaches the packed column, and each column has a different flow rate, leaving controlling the flow rates of the butane more problematic than controlling the flow of the coolant.
We are adding a thermocouple to measure the butane temperature exiting the heat exchanger, and will use that PID readout to manually control the flow of the coolant, on the test sled, while researching low temperature motorized metering valves.
Hee, hee, hee, isn't change fun!!!??
Breakover
Member
I havent decided yet, but I think vertically is going to be most effective for the reasons you mentioned.
We are going to use the same coolant loop we use for cooling the discharge cooler. Probably plumb it in series before the discharge cooler so we get the liquid solvent as cold as possible, but we may switch it up depending.
The repurposed window shaker we are using as a redneck chiller supplies all the coolant we need. It keeps our discharge cooler at around 0F - well below the condensing point of isobutane. we are just using a simple submersible mag drive pump normally used for hydroponic systems. It is a 400 GPH model, IIRC. Not sure of real world flow rates, but it definitely doesn't flow that much pumping PG and water (RV antifreeze) around at or below 0F.
Bottom line is it works like a charm, and we seem to be getting faster by the day.
That's quite the expensive piece NL! Have you seen the "shotgun product" offered by some online brewery supply. It's nearly identical and a fraction on the price. Regis was using one as a condensing column for alcohol recovery.
Are the ends tri clamp?
Are the ends tri clamp?
The Appion has its own heat exchanger, so one isn't required. It would speed things up though.
The CPS high vacuum pump doesn't need a heat exchanger but the CPS TR-21's do.
GratefulOne
Member
LOL- Things come full circle!!!
Don't worry it is the natural progression from being around here.
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Breakover
Member
I haven't but I'll check it out. Thanks!
Yes, the ends are tri clamp. When you factor in the cost of making ice to chill the recovery tank, it makes sense. This way we can stick with one bulk tank, insulated, and get away from ice completely.
Getting rid of ice has been a near 2 year quest, with many tries and failures in between. The window shaker chiller was the breakthrough we've been seeking. Now we have an ample supply of flowing 0f fluid to work with. Much neater and less labor intensive than ice.
Kinda makes me want to try aeroponics again. Controlling Rez temps would be easy.
