That’s not true bro. 15 amps at 120 volts is 1800 watts 20 amps at 120 volts is 2400 Watts and you can easily connect 2 ton (24,000 BTU) AC system and if you want to you can run a second circuit and run a second one off of the normal electric lines that comes into your house.
You can use a 55 gallon drum or even if you want something bigger you can get one of those metal horse troughs that looks like a big bathtub build a box bigger than it put down three or four inches of insulation foam on the bottom wait for it to dry put your container in and fill the space all between the container and the box with more insulation foam let it dry put the refrigeration system condenser coil/coils into your container that you built you can make your butane condenser coil really large for maximum heat exchange area to fit inside of your container make a good insulating lid with appropriate holes for all of your lines fill it up with whatever thermofluid you want plug it in wait overnight and now you have 55 gallons to 200 gallons or more reservoir at -20°c ready to soak in a lot of heat and at the same time have 24,000 to maybe 48,000 BTU of on hand cooling capacity on top of it. All of that from your normal 120v home electric lines
Edit: after looking into it again it’s possible that i was wrong about the maximum size AC that they make for a 120volt. the maximum BTU AC that I found just now for 120volts is 12,000 BTU (1ton) . But you can still make it work
Okay. So that was a good read this afternoon between other things.
I’m sitting here going, how in the fuck can you have something be >100% efficient? You can’t just make 900w be 12k btu/h, right? I also learned I was referencing these units all wrong lol
Short answer. You can’t.
Long answer, CoP.
“However, this does not mean that they are more than 100% efficient, in other words, no heat engine can have a thermal efficiency of 100% or greater.”
I kept thinking it had to have something to do with the temperature differences at input and output, or maybe it was going to be related to the size of a room.
“The COP is highly dependent on operating conditions, especially absolute temperature and relative temperature between sink and system, and is often graphed or averaged against expected conditions.”
It almost sounds like this would be a graph similar to what a chiller spec shows, but I wouldn’t know how to chart it. Suffice to say the amount of energy going into the system does not equal the amount of energy being removed. So, just because it says 12k btu/hr doesn’t mean it’ll be able to remove 12k btu/hr at say -20°F.
Still kinda struggling with the details, but that’s what I got from it. The other thing I’m not sure how to calculate is what I think would be referred to as the latent cooling capacity of your reservoir. I’m assuming it’s a heat capacity calculation.
I think everyone has to learn at some point. I am a computer programmer but I like doing this as a hobby so. Have I ran across it yes (the chart ), but dont I fully understand it, no but I can learn, thank you for your concern. Thank you for sharing your knowledge and willingness to teach the community and others such as myself. I have a lot of homework to do and more to learn. Form your explanation I can now understand the chart. my PRV limit is 125 psi ~8 bar
According to this at -50c with no added pressure butane would be in a liquid phase. That explains I do not need a 1 to 1 dry ice equivalent in terms of temp however a chiller that is colder than that needed -50c, can increase the recovery rate I assume. Thank you for pointing me at the tool needed chiller-wise.
Answer your question from earlier I can afford a chiller now that you point me in the right direction, i am also weight in maintanice and just faulty equipment as that can happened vs. just getting a dry chest and holding the dry ice myself. Yes, I have a recovery Pump Trs21 I have rebuilt it a couple of times and it still going strong. I will henceforth use C for temp and I didn’t understand the second part in regards to " I recommend grams, liters, and kg also gain real-world meanings for you". I will do some more reading on thermodynamics thank you.
thesk8nmidget I have a 100lb / 45kg tank which I only fill to 40lb / 18 kg of butane I try to do at least 4 to 5 extraction a day. I do a full wash so when I say that I just all the butane till the dip tube can not push up anymore with n2 assist (I didn’t know the dip tube didn’t like touch the bottom ).
cyclopath and everyone thank you, I do see, that yes,one can use a chiller on the jacket solvent tank and reduce pressures creating that vacuum and also use the condensing coil jackets to condense the butane and use dry ice but not needed but can help assist the process. As vortal has stated there is truly no replacing dry ice speed. I see that thank you for the lessons.
Sorry took so long to reply I am new and there is a limit to reply. Just for reference, I have always used dry ice, but due to the rainy season can’t do the extraction and I don’t want a delivery of dry ice to go to waste. so was thinking of a different solution. I think for now I will just purchase a Dry Ice Chest, and get the 500 lb of dry ice. I was previous doing a rental of the chest but my supplier didn’t like that I held it for 2 weeks due to the weather 300 bucks for 500lb of dry ice. Once I have learned more, I will look into the chiller this will also give me time to save up, as I don’t do this for profit currently it is a hobby.
cyclopath I do have a question about the flow rate now for the chiller. Let’s just say the Flow rate 20L/min if i have a 20L bucket i assume like cfm I and change that water each min. Trying to articulate this correctly were I am confused is how the flow rate affect the cooling. I assume if the flow rate is 1 to 1 then the energy efficiency would be 100 percent. If smaller the energy efficiency would be great then 100% and larger would decrease the efficiency is that correct?
