#7. Geothermal probes. Launch work.

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• Out mournful labor won’t be lost, the dogs will find it and eat as a toast.
• Greetings, ladies and gents!
• This video is going to consist of a series of short videos.
• It’s a selection from the
• thermal siphon and
• heat pump launch.
• There will be correct conclusions as well as the wrong ones. See it as it is.
• And regarding the common ones,
• correct as of today conclusions,
• I think, we’ll make an online stream.
• I’m not a streamer, so there may be some hiccups.
• I’ll do the stream
• on friday, December 13th, 2019.
• at 21:00 Kyiv time.
• First, I’ll talk about my conclusions,
• you’ll be able to ask your questions in the chat, and I’ll try to answer them.
• We’ll make a little discussion.
• Without further ado, let’s see the clips.
• enjoy!
• and leave some comments!
• Here you can instantly see which pipes work better.
• If you look from left to right
• the second and third.
• Interesting, do they contain more freon?
• Or less of it, vice versa?
• Interesting how during the refuel,
• The freon has evaporated.
• I’m refueling it with the butan now,
• there’s only one redundant atmosphere now.
• Here you can see how the top part thaws off during the refueling.
• The compressor is working at the moment.
• Here’s how it looks.
• Alright, looks like those clowns fill these cylinders not with isobutane,
• but with a propane-butane.
• At first, when you connect the cylinder,
• it shows the pressure around 4 Bar.
• But with isobutane, it should show 1.5 Bar of redundant pressure at the current temperature.
• 😠
• Why trick people that this is an isobutane? Freakin’ bullcrappers!
• 😠
• Alright, what I want to summarize concerning thermal siphons.
• They work.
• But in the form that I have them now,
• it looks somewhat problematic.
• Why?
• The thing is that, it looks like there’s some depressurization happening,
• somewhere at the bottom of the pipe.
• I can’t figure it out right now.
• We’ll see.
• Because in the current situation.
• only a half of the thermal siphons work.
• And for the given power of the cooling machine,
• the half of thermal siphons is not enough.
• Here we can check out that
• the temperature is around -5 degrees.
• Moreover,
• on the thermal siphons themselves,
• we can see that only the half of them works.
• I’t hard to see here, I’ll comment.
• Now this thermal siphon shows 1 degree.
• this one shows 8.5
• This means that this one works, and that one doesn’t.
• This one looks ok, 2.0, but I’ve just refueled them.
• In fact, after some time half of them will stop working.
• This one works 1.3
• This one works pretty good too -1
• Here we have around 0 degrees
• I refueled these two yesterday, and they worked. Today both of them are not working.
• This one doesn’t work too.
• These three,
• This one I’ve just refueled.
• I didn’t refuel this one, because when I opened it, there were no gas. Probably it’s not working.
• It let’s out somewhere.
• Here it shows 0
• And here,
• can’t quite get the readings.
• Here we have 2
• around 2.9
• This one looks good, for now.
• Yeah, 2.8
• This one works too.
• 0.2
• So, the half of thermal siphons doesn’t work.
• The next step will be to make sure,
• which thermal tube lets out.
• And try to pull it out.
• I hope it’ll work, I’m not sure how much they stuck there.
• And try to figure out where’s the leak and what’s happening.
• There are 2 types of thermal siphons.
• What’s the catch, I didn’t figure out yet.
• On the one side,
• check the temperature,
• we’ve got -3,5
• And the pipe itself if we’ll look further
• is somewhere around 0 degrees.
• -1 degree
• This means that the thermal siphon is working.
• Most likely, if we look at the temperature sensor, there will also be a negative.
• right here
• the pipe
• 8.9
• 9 degrees, but it’s not frozen.
• So, this means that it heats up.
• And it heats up not from the surrounding air.
• If we’ll take this one
• the second from the right pipe,
• It’s completely not working. There’s no gas in it.
• Rather, it escaped by itself.
• Here we have 7.6
• This means that this pipe is completely useless.
• When the pipe is working, the temperature approximately corresponds to the gas temperature in it.
• Why? Two side-by-side pipes,
• moreover, the temp sensor at the bottom will show around 1 - 2 degrees.
• What? The thermal exchange with the soil is better here?
• I just can’t wrap my head around it.
• All the pipes were inserted in the same way.
• I just can’t figure out what’s wrong.
• Here’s how the compressor works.
• The pipe is frozen because at the moment,
• only 4 of 12 geoprobes work.
• Why only 4 of them work, that’s a mystery. Seems like there’s some kind of tricky problem.
• Most likely related to the manufacturing process of these probes.
• But, I think I’ll figure it out and share with you the result later.
• Because if the system wasn’t operational at all,
• all of them would not work.
• But these 4 are working!
• Seems like there’s leakage in some of them. But we’ll leave that for another video.
• At this point, I’d like to summarize my thoughts regarding the compressor.
• Thermostatic valve is a must.
• Or else, you’re going to have some troubles with the system setup.
• Another very important, even critical point - the level of filling the evaporator with freon.
• If it’s not enough, the system won’t go into the stable mode.
• It’s not going to work correctly.
• And, I really recommend installing a viewing window.
• Upon exit of the evaporator.
• It’s really helpful when setting up the system.
• You’ll be able to control it visually - the liquid phase or bulbs.
• Does the evaporator works correctly or not.
• Regarding to the efficiency and everything else,
• I think, I’ll make another video, when I deal with the probes.
• So that all 12 of them work.
• Now, I’m lacking the thermal power of 4 probes.
• It shouldn’t have been enough.
• So far, the compressor works, and I don’t see any reason
• to do anything else with it
• to modernize it,
• or make it more powerful,
• or to do anything else.
• That’s all regarding the compressor for now.
• Now I need to deal with the probes.
• The pump has worked for about 20 hours.
• I specifically launched it for such a long time to see,
• which of the pipes work, and which doesn’t.
• After 20 hours,
• looking at the
• frost
• which appeared on the pipes,
• we can understand which of the pipes are working.
• So, the next stage - is to try to pull the faulty ones out.
• Open them up and try to understand,
• I hope I’ll be able to understand why they aren’t working.
• So, the freon escapes there, but since I’ve just refueled it. Looks like it doesn’t always work.
• Or maybe it works only at a certain higher temperatures.
• I was thinking a lot.
• What could’ve happened?
• Maybe, the silicon that I applied at the bottom of the pipe…
• …somehow got up and clogged the pipe?
• But it’s just my thoughts.
• The realify may differ.
• Here we go. Let me show you…
• how the frozen pipes
• look.
• We can clearly see, if we look from left to right,
• that the first pipe is frozen.
• Then, you may not see it well, I looked from the side,
• 7-th, 8-th and the far 12-th.
• All the other pipes are not frozed, so probably they work.
• Alright, I think I discovered the problem.
• Let me try to get it…
• …from there.
• I can touch it clearly.
• Here’s one of the pieces of the problem.
• Do you see that?
• Freakin’ silicon!!!
• So, it seems like…
• …it got up,
• …from the bottom, clogged the pipe, which worsened the heat exchange.
• Yeah, it’s clearly the silicon.
• When I was sealing the pipes,
• the silicon that was left at the bottom didn’t dry out.
• That’s why the pipe was clogged.
• It dries up on the air.
• And this stays there.
• 😠
• Where the heat exchange is really bad.
• Did you see? After the refueling,
• it heats up a bit,
• but inside, the heat sensor doesn’t lower the temperature.
• So, there are some heat, but it’s really weak. Because this thing has clogged the pipe.
• But there’s also a depressurization, I’ll need to…
• …find the pipes and pull them out.
• So, I managed to pull out these plugs.
• What this says to us?
• This says that the silicon froze there and then came off.
• I don’t know, maybe because of the temperature difference or for some other reason.
• Moreover, you see, on one side it’s white.
• It probably was in the contact with the bolt, I’m not sure.
• And the part of it got stuck,
• one of the pipes was clogged at the middle.
• It got jammed somewhere at the crossing
• from the copper pipe to the plastic one.
• It even got to the point at which the hose,
• not the hose, the pipe, when I got it out,
• it hooshhhhed at me! like, whoossshhh.
• I don’t know if this plug flew out or stayed there.
• Well, using the silicon was my mistake.
• At the end of the pipe.
• It comes off, gets up and jams the system.
• Maybe, it was some crappy silicone… who knows.
• Oh, my dog is knocking on the door. I’ll go let her in.
• So!
• I extracted at least 4 silicon plugs.
• Pressurized the system again.
• Refueled it, and launched again.
• I want to note that almost everything,
• bottom connectors
• are not frozen now.
• But the pipe itself is frozen.
• I’ll return to this in about a minute.
• So, it seems like,
• more or less, all the thermal siphons work now.
• What can I say? It probably was a mistake to use that…
• …hardened connector to the metal-plastic pipe.
• Because, it was letting out exactly at the place
• I wasn’t sure about earlier.
• Sealed it with a slightly different sealant, connected, looks like there is no leakage so far.
• The leakage was only in one place,
• where I sealed it with my lovely tow.
• We’ll continue in a second at another place.
• So,
• We have 3.2 degrees here.
• At the out of the evaporator.
• Next…
• If we’ll look…
• at the temperature
• this column
• the first is 9,
• or more precisely 8,
• They work somewhat stable.
• Somewhere around 3.2
• 4.5 - 5 - 5.7. But this maybe because there are thermal resistors installed.
• and they don’t have super high accuracy.
• The last 4, I think, work too.
• Because there’s no frost on the outlet pipes.
• But they work less effective, maybe there are some plugs left,
• or maybe…
• something has changed, in equal conditions they work worse.
• Why is that?
• Now,
• I’d like to share my thoughts on this matter.
• What I noticed.
• Is that,
• at the exit from the evaporator when 4 thermal siphons worked, it was -4.
• Now, that at least 8 of them is working,
• most likely they all work. Only 4 of them not to the full power.
• It’s quite possible, but I’ve seen plugs flying out of them.
• But, we’ll return to it a bit later.
• So, we still have the temperature -3
• The temperature got lower. On those thermal sensors.
• What am I leading to.
• To the fact that, apparently, this point (-3, -4 degrees) for isobutane,
• in the case of thermal siphon в случае термосифона является
• is sort of…
• what to call it…
• Potential pit.
• I’m not sure how much the “pit” is going to be an appropriate term. But, roughly speaking,
• When the condensation shifts, for example,
• in the positive direction or in the negative, when it shifts in the positive direction,
• the vapor pressure decreases, i.e.
• Less heat is going to be transfered because of that.
• And when it goes up,
• the temperature decreases, the pressure increases correspondingly,
• the vapor velocity increases.
• and prevents those droplets from dripping down,
• working fluid through thermal siphon pipe.
• What does it mean? This means that,
• the system is critical enough to
• the vapor velocity.
• And as a result, any configuration chane, such as the tilt level,
• the pipe length,
• the presence of turns,
• the pipe diameter,
• it all going to affect the potential “pit” point.
• Let’s call it like that.
• At which, the power of the thermal siphon is maximal.
• In the case of a singular systems like mine, I’ll be able to tune things up.
• But if we’ll look at it…
• …as a mass production technology, I certainly have my doubts here.
• as to whether or not it can be possible.
• to install these types of systems at scale.
• Perhaps later, me or someone else will be able to come up with some other ideas.
• But that’s the results of my experiments so far.
• The idea itself is very attractive.
• but…
• how much is it
• practical from the business point of view, I’m not sure.
• Thanks to you all for your attention!
• We came to some logical conclusion regarding thermal pipes.
• Or at least to a certain stage.
• Of course, I’ll be doing more experiments with this stuff.
• If I’ll discover anything interesting, I’ll make another video for sure.
• But, if I won’t be able to solve the technological aspect of this problem,
• I don’t know, maybe we can figure something out together?
• How we can solve this interesting puzzle?
• Because the idea itself is very interesting and really cool from the operational point of view.
• Alright, see yall later!