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Sail life - Technautics CoolBlue refrigeration & varnishing - DIY sailboat project
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- Опубликовано: 14 авг 2024
- This week I get Athena's fridge up and running using Technautics CoolBlue. That's going to be one spiffy fridge! Technautics website: www.technautics...
Drake Paragon (Drake and Mo) RUclips channel: / drakeparagon
Their CoolBlue video: • Our Fantastic Fridge a...
00:00 Introduction
00:30 This week's goal
01:40 Technatics CoolBlue
03:10 Kitchen island
04:17 Holding plate
05:21 Compressor
06:20 Mounting location
08:53 Installing the holding plate
13:44 Insulating copper tubes
14:20 Wiring
15:33 It's alive!
17:02 Oh glorious sanding
17:44 Last coat of varnish
18:20 Cya!
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@Sail Life, sorry for this being my first comment on one of your videos. But as an HVAC/R Tech I have to say you did a decent a job, however, you're going to see a minimum of a 5% efficiency loss do to insulating both the low pressure return line, and the high pressure feed line. Insulating the low pressure line does two things, it prevents condensation and more importantly decreasing the amount of heat the low pressure line absorbs, reducing the amount of work the compressor and evaporator have to do to remove the heat. Insulating the small high pressure line, decreases the amount of heat the system expels into the air, increasing the amount of work the compressor and evaporator have to do. Insulating them in the same jacket, just doubles in the inefficiency by creating a closed heat loop the will build up the longer the system runs reducing efficiency even further. But otherwise you did a good job.
Right on!
I am not a tech but that what I was thinking👍👍
I agree, having worked with HVAC, I cringed when he wrapped both together.. it will work, but the compressor may come on more then it needs too..
Hope he sees this.
@@cnc75adventures49 My thoughts also!
Insulating both pipes together seems like mistake to me, in fact, isolating them from each other is your ultimate goal. It is basically heat pump, temperature difference in lines defines the efficiency.
Watch this show EVERY sunday! Don’t own a boat and won’t own one in many many years but I find everything Mads does entertaining.
A suggestion. Mount a small computer fan to act as an "exhaust" for the compressor box. Air-cooled is great but requires air flow. In several restaurants I worked for, we mounted the air cooling outside the restaurant to improve the unit's efficiency. Just a thought. The downside is that the exhausted warm air will flow into the galley area. Merry Christmas, Happy New Year.
Don't wrap both hoses into the same insulator, that way you are creating a "temperature short-circuit", with a lot of energy loss due to heat exchange outside the refrigerated box. Basically the cold fluid get heated before reaching the plate, and the heated fluid returning to the compressor get refrigerated again between the plate and the compressor.
I agree
What he said
You want the cold to stay cold and the hot to lose heat (by heating your boat) that way the compressor works less.
Definitely do not wrap both hoses together!
You have to separate them if you want to have an efficient system. Insulate the cold one for better efficiency and to avoid condensation. Do not insulate the hot one for better efficiency.
Refrigeration doesn't work like that. As a matter of fact the tube from the compressor & aircooled condensor to the holdingbox (the evaporater) is filled with WARM liquid. The return tube to the compressor is filled with COLD gas (not liquid!) If you wrap both hoses to the same insulator you even improve the efficiency of the system because the liquid before the expension valve is undercooled. Also you can use the eveporator more efficiently because you don't need to worry about remaining liquid in the returning tube to the compressor (a compressor is a gaspump, not a liquid pump!) But to do this you need to make adjustsments to the thermostatic expension valve on the evaporator. Down-side of this is that the compressor uses the cold return gas to cool itself, and because you mount it under the floorboards I would follow instructions and don't insulate them together. Note here: the insulation on the return tube (suction tube) only is there to prevent condensation; it has nothing to do with energy loss.
Ahhh! Seeing the sanding at the end was like
taking your boots off after a long day of hiking.
Now I can relax. Journey complete.
love the dice in one of the portholes
Great work Mads,
Short comment: don't insulate the high pressure line, and try to thermally separate the two lines.
Long comment: the refrigerant coming from the compressor will be hotter than room temperature. The more heat it sheds on the way into the freezer, the faster and more efficiently it will cool your box. If it sheds its heat into the return line, the compressor won't be able to cool it down as far.
Also, the efficiency of the compressor is highly dependent on how much cool air blows over the radiator. I think that location may get hot when the compressor is running. Might want to check out the compartment temp when the unit has been running for a while.
Happy holidays!
Anecdotal support; a boat I crewed on recently had a cool blue system, compressor mounted under the galley sink. It had a seagull water filter for drinking water. We had warm drinking water. The owner has since increased airflow to the cabinet.
If you look at the back of any domestic fridge inside the pipe foam you will see that the capillary line is soldered the full length of the suction line. The purpose for this is for heat exchange .If you look at a Psycrometric chart you can see that it is a boost in efficeincey . On TX valve systems like yours they sometimes install a heat exchanger to the system. Just taping your liquid line to your suction line and wrapping them together with foam is sufficient . Cheers
Glad to see another cool blue customer.
We always giggle at "[...] a somewhat extensive refit [...]". Thank you for your videos and documentary!
wow! that boat has some serious freeboard.
Loved mine. Great customer support.
Merry Christmas and a Happy New Year, --- Peter, New Zealand.
Hi Mads, great video as always! While watching the video I.had the same thought as some people below (as Jason has already explained it very well, I will not repeat the full technical reason) regarding the insulation of the feed and return line of your new fridge design. I am an engineer, and in my job I sometimes need to dimension and design heat-exchangers.
This is obviously a mistake that can happen to someone not familiar with the, admittedly, sometimes rather complicated and tricky desing of such systems. AND this shall not take away anything of the otherwise fantastic and well thought through approach you take on rebuilding your boat and building your dream. I salute you on this, because I recognise that this is more than a marathon, this is an ultra-marathon at its finest. It takes a special person to maintain the positive spirit and the quality of work throughout these years (and yes, I am following you each sunday for the last "i dont know how many years").
I will end this by also wishing you relaxing holidays and a happy new year. 2021 will become very exiting on your channel!!!!
I have the cool blue on my boat, great system. And yes you will want to add more ventilation than that, might be fine in the winter but when you get down where the water is warmer, it will really hinder it.
In the summer if I have been doing a lot of motoring and it is a hot day mine has to work pretty hard to keep up, so I pull the engine cover and that makes a huge difference.
It is however a great system, mine quit on me and Rich called me on a sat phone from Mexico on a Sunday and helped me get it working within an hour of me sending the email! Met him at the Seattle boat show, great guy!
How would you know that they would want to add more ventilation for a warmer climate? You've only been sailing for two + years, and have never had your boat out of the northern waters of Puget Sound.
Wow, this (Athena) is a complicity new boat now ! Very nice!
Maybe you should install boat stabilizers on your boat? No , seasickness any more!!!
Mads, that holding plate is an old Crosby holding plate... big plate and exactly the same as the ones we have converted on our passport 40. We did the same technautics setup 4 years ago. Works great except we did dual setup frig/freezer. Excellent choice
Furry Dice Mads? Spot on 😀👍
Merry Christmas
"Firmly planted in overkill territory" is where you started Mads. You are now approaching ultimate strength territory. Thank you so much Mads for a year of wonderful projects, glorious sanding and truly spiffy videos. Take care and wishing you and Ava a very joyous and productive New Year.
Besides the insulation issue, it would be good to install an air ventilation vent to the compartment holding the compressor. The lower the temperature of the air reaching the heat exchanger, the higher the efficiency. Love the size of that fridge.
agreed
A few points.:
1. Follow the installation instructions regarding wrapping forward and return lines together. From my recollection, sometimes the liquid line in refrigerators is actually located inside the gas return, so some designs obviously expect close thermal coupling between the lines. Bottom line is, the amount of thermal coupling is one of the design parameters and should be addressed in the instructions.
2. Vibrations in those copper lines might induce wear at contact points. Insulating the lines together may be fine but they perhaps should only be in contact where they are strapped together, not where they might randomly rub each other.
3. The evaporator in the bilge may be cooled by the water outside the hull but you may want to duct the warm air from the fan so that it physically passes along the hull. This will ensure the air gets cooled.
Thanks for your presentation. I do enjoy watching someone else work!
Mads, You made that look way too easy... refrigeration is black magic and should look harder! Merry Merry!
Excellent work, as always, and great to see progress coalescing on a finish :-)))
Just a thought re the assumed absence of water in the bilge beneath the compressor - water usually gets in here from sources such as wet weather gear, (sails of course on a race boat), spillages, overflow taps, hatches left open etc and that bad day when water comes down the companionway, directly, so it may be worthwhile at least coating the elecs to prevent/limit water ingress or possibly a custom enclosure - sounds tricky, but you always do tricky so well. Cheers and good wishes for 2021!!!
Merry Christmas Mads. I can’t believe how fast Eva is set to arrive. You are so calm about all the work that needs to be accomplished between now and then.
Hiya, Happy New Year to you both... Stay safe...Steve...
Merry Christmas Mads - Great work on the fridge - as always your willingness to tackle new tasks is most impressive.
Thank you so much, Greg :) Merry Christmas :)
@@SailLife Mads, plz notice Jasons comment!
Personally I would have put the cold plate inbetween the outer plywood case and resin liner that you made.
That way You have maximum space in your fridge and you wouldnt have to wory about groceries banging into the plate or the thermostat in a big sea.
The boat on the other hand is starting to come together and Athena looks great. .... ⛵💕🌠
That loop.is actually a good thing as it will act like a trap and help create pressure to force the oil back to the compressor from the plate.. So its a good thing, not needed on the smaller tube.. Hopefully you have a small vacuum pump, it will be a good keeper should you need it in the future..
Merry Xmas & a great New Year to you and Ava
Thank goodness for the Oh Glorious Sanding!! I thought we were going to miss it. Merry Belated Christmas and a Happy New Year!
Thank you for taking time to have all of us along! All my best for 2021
Merry Christmas good sir.
As ever Mads you are making superb progress. I think the installation of ‘cool blue ‘ has garnered the channels record for specific comments - so I am not jumping in as well.😂 Hope you found some time to enjoy Christmas and the world can get back to some sort of normality by the time you want to go cruising with Ava, although I am pessimistic for international travel opening up in that time frame. Best wishes.😀🎄👍⛵️
Congratulations Theo on getting the fridge up and running. Fantastic little unit. Happy new year to you. Australia
To you and yours it's with great pleasure to extend a most joyous and merry Christmas to you.
Great job, step by step the closer you get. Can’t wait til the distribution panel and electronics are in..
Merry Christmas Mads.
Happy New year!
Een zalige Kerst en een gelukkig Nieuwjaar vanuit België
Merry Christmas and a Happy New Year from Belgium
Boat looks great in the water, love seeing everything coming together
Yes there is a downside to wrapping those pipes together..... heat transfers from one to the other...... one pipe carries the fluid with heat, one pipe carries the fluid heat has been removed from.... when you put them right next to each other you made a heat exchanger that will reduce a lot of cost saving you went on about
Hey Mads, the unvented heat build up in the bilge compartment will shorten the life of the circuit board. You may want to vent it sooner than later. Love your channel and really respect your accomplishments on the the boat.
Thank you Mads for another great episode - your work is inspiring!!
If noise ever becomes an issue, it could be a fun project to program a timer into the fridge compressor so that it only/mainly runs at night. Best wishes!
Merry Christmas Mads and Ava. Wishing you all very best. Happy sanding.
Merry Christmas from Canada - Love your channel.
It isn't Christmas without some glorious sanding 😂Merry Christmas Mads 😊👍
Good job looks great man
I’m a refrigeration tech and just wanted to say any copper tubing that sits close to each other should have a bit of silicon to bridge them together because eventually they might touch and cause a leak. The silicon will act as a cushion to keep them from rubbing a hole or leak. Did you check for refrigerant leaks. You will need to vent the condenser so it’s not recirculating the warm air that it has removed from the refrigerator.
I also wondered about recirculating air passing through the condenser over and over causing the fan to run longer than might be the case if only using fresh air, hence increasing power consumption.
@@w056007568 the unit he is using doesn’t run very much. That might help some but if it’s in a warm climate he may have issues and he may not even know he has issues like pressure problems without checking it with gauges till it has a compressor failure. I would surly vent it just to make sure.
What you should have gotten was a copper tube bender used by HVAC service techs and plumbers. They are fairly inexpensive and easy to use, and you can make some tighter bends without kinking. Note for the future?
Nice video, merry Christmas and a happy new year
Maybe you put some Armaflex under the floor board above the cooling unit for better sound insulation
Merry Christmas 🎄 ⛄ ;)
hi the boat is looking very good
Ending this year with some glorious sanding!Happy and healthy New Year to you
Well done. That was such a cool episode. Have a Happy New Year
Ava's boat is coming along nicely, lol. Thanks for sharing!
The moist in the fridge might shorten the life if the thermostat..
If you want both freezer and fridge you can have a simple wall in the box
In my boat i just have some aluminum covered bubble wrap
The temperature of the fridge side depends on how well the wall fits, it’s nothing critical you just put the stuff that might get frost damage away from the wall..
Happy New Year Mads.
Athena is shaping up very nicely!
Thank you for that (albeit short) bit of 'Oh Glorious Sanding', I can now get on with the rest of the week. :)
Merry Christmas Mads
Nice job!!!
I had the CoolBlue for many year on a previous boat and it is awesome, quiet and efficient.. GOOD CHOICE.
Go fast dice at 17:55. I can't wait to see Athena on a plane blowing past jet skis....lol
I have been waiting for several years for the upcoming videos 😄 Gadgets time ❤️ Happy new year 😘
Seasons Greetings Mads. That seemed like a nice easy setup. The fridge on my C&C 33 quit last season. This looks like a nice replacement I will have to look into. Great work as always. Looking great.
I installed the Large “O” icebox conversion refrigerator on my 35 foot Jeanneau eight years ago. No cold plate taking up space in the fridge. Cost around $700 on sale at Defender. Comes complete and ready to install. The BD50 Danfoss variable speed air-cooled compressor is quiet and efficient. Super dependable.
For future reference Mads, if you have occasion to work with finer copper tubing again an exotic alloy known as 'Woods Metal' exists which melts in boiling water.
If you pour Woods Metal into pre-warmed fine copper tube and let it solidify you can then bend the tube with little risk of it kinking or even deforming.
After that, simply heat the tube in boiling water, pour the Woods Metal out again and flush the interior of your copper tube with more boiling water, be aware however that Woods Metal is toxic to touch!
In the interest of wellbeing for you and your shipmates I suggest that you ensure any Sikaflex or other chemical compounds you use in the interior of your fridge are food grade!
Mads can see the light at end of the tunnel. Darn, its just someone with a flashlight.
Best you keep your nose to the grind stone.
As always, nice work. 👍
Merry Christmas and happiest of holidays to you, Mads! You are a constant inspiration and reminder that anything is possible when you follow your dreams. Thank you! 🎄💫❤️
Check with Rich, because you aren't likely to believe us.
1. Don't insulate both high and low pressure tubing, or fasten them together.
2. Provide outside temperature monitoring of cold box.
3. The electronics associated with the "Danfoss type" compressor are susceptible to early failure if exposed to continuous high heat. Provide ventilation.
4. With the compressor located so far below the elevation of the cold plate you might experience "slugging" as the refrigerant settles in the lines.
5. Cold plates generally are less efficient than evaporator plates, unless you have excessive solar capacity/battery capacity to make use of during daylight hours. Reasonable people can have differing opinions on cold plates versus evaporator. Provide plenty of solar. This single piece of equipment will be your largest energy consumer by several factors.
6. The heat rejection of the compressor unit (not the heat radiating from top of compressor) should be situated such that the hot air is not immediately drawn back into the fan-cooled coil. Provide adequate clearance on the leaving side.
Mads
READ the above carefully and do more homework.
You're running at 110% so far
Cheers,
You are very talented I've been watching your channel for years I' wish you and Ava merry Christmas and a Happy New Year
Merry Christmas to you too! Wishes of smooth progress next year and may Athena be ready for you and Ava in time!
Merry Christmas Mads. A warm boat and a cool fridge - everything else is a bonus.
Merry Christmas Mads, and Eva. 🎄 Amazing how you keep your efforts to the “grindstone”, you demonstrate a disciplined work ethic. Bravo, I like to add I’m 71, and still learning, especially from young lads like you. Thank You sir.
I tip my hat to you Richard. Happy Holidays to you
Not sure if I have said that before but I really enjoy the cool calm and collected way these videos document the refit of your boat. Also, there is a significant learning effect for me, maybe not the details because they are different in any other boat, but the some of the basic principals how things working on a boat. I am very curious how all of this will be once the boat is finished an ready to go. Merry Christmas and good luck in the new year with your refit. Christoph
Merry Christmas Mads, awesome job as usual. Progress is really marching along. Andy UK
Merry Christmas to you and Ava. Thanks for all your videos - even on Christmas. So appreciated! Best wishes for the New Year ..
Oh, a Christmas Present from Sail Life - I thought you would take some time off Mads. Thanks for the pleasant surprise and Merry Christmas to you, Sir.
I can’t wait for the sailing videos. Merry Christmas.
I see a major problem with your new fridge, where are the beers getting nice and frosty! Merry Christmas and a happy new year of sailing.
Mads, my boyfriend and I watch your videos every week when they come out. So I have to ask, we haven't seen Jökull in a little while. Is his cute fluffy butt okay? This is important to know!
Merry Christmas Mads.......... Very Very impressed with your project to re-fit Athena.
I loved the "lists" you compiled before smashing Athena. They were stickies on the wall (LOL). It really helped me see and understand your process. Can you continue this?
You are cool man. I like your style.
Merry Christmas to both Ava and you Mads. Wow, heating and cooling = warm conditions to work in and cool beer! Yay. See you next year.
I was a Boiler tech in the Navy. The water cooling in the compartment, cool blue might work. While you're high in the northern hemisphere. but the closer you get to the equator the water temp goes way up. When I was in the Navy. when we were crossing the line. Our cooling water raised our machine temperatures +100 degrees. Sometimes we could not keep our machinery within temp limits.
I even watch a bearing turn bright red with maximum cooling water flowing through it. You might lose blue right when you need him most. Also, You supply and return lines. Please Tell me you going to put a box around them. If not you will clip one of them and have a big accident. Just a little round curve one would save you from making it a knee knocker too!
The lines are all covered with cabinetry not in place yet.
@@benlindner5285 I have watched all your videos. I have seen many fiberglass projects over the years. but I think yours has the best explanations I've seen in a long time. Plus 99% of your explanations. are what a reasonable and prudent man, in your situation would do! Plus I love that your attitude is that it's your project. And you take suggestions. but you are the one that has to live with it. So that's the way it is.
should add a temperature gauge inside the box with a display mounted outside. I use a digital one that is inexpensive.
Merry Christmas Mads! I'm sure you are very excited to have cold beer aboard the boat :)
Hi , Another fine install ,made simple . Have a Happy New Year Mads ,stay safe .
You know us well Mads! Yuletide sanding, who could ask for more :)
Mads. You're nearing your end of refitting Athena. Have you given thought as to how you're going to approach doing videos once you and Ava start sailing... IF you do videos? You have a real talent for instruction. Will you maybe take that and apply it to teaching how to sail?
The large line, low pressure line, blue line, (all the same thing) is only insulated to prevent condensation. Don't insulate the smaller, high pressure, red line, and make sure they dont touch each other except where space requires it. You lose efficiency, the small line is warm the large is cold, that's why you dont want them touching. In worst case scenarios the system can lose a lot of efficiency. In your application they can be pretty close but no contact if possible. Once operating check the entire length of the lines for dampness and add insulation as need. Dont put the control in the fridge unless it is moisture proof, you could get condensation or frost in it and break it.
The thermostat is designed to be installed in the refer.
Oh sander oh sander oh how I love thee oh sander!!! Merry Christmas
Merry Christmas Mads, great video again.
Really interesting. Thanks for sharing with us once again 😀🙏
Merry Christmas my friend hope to see you next week and hope to see your four legged friend also. 👍🏼👍🏼👍🏼
Merry Christmas to you & Ava Mads.
You've done a really a great job on the fridge.
Happy Saturnalia. Great work Mads
Merry Christmas and Happy New year...MADS.good job on your boat!