Water cooled COBs

ttystikk

Well-Known Member
@mahiluana thank you so much! Love to see data on this as I think about what I want in a light for my modest space. I would think a reservoir of water would store plenty of energy while radiating it to earth through the concrete in the basement. I'm curious what @ttystikk and others are seeing for dT's and flow rates in relation to light system power consumption. Im giving serious consideration to water cooled lights.

I have been researching lights and I'm thinking about 200 watts of softly driven cobs mounted in 2 rows serving a space that is -1.8 feet wide by 4 feet long long. Haven't decided which cobs to use. Efficiency is a primary design consideration of the light. I am thinking that the bar mount filled with water is the right setup for pump efficiency. Using larger conveyance piping also reduces pump power consumption. The hydronic system that heats my house uses a 9 watt pump to move 4,000 watts at 3 gpm, so it's clear that a very small amount of energy would be needed to move less than 200 watts of heat out of the grow space.

Thanks to all who have provided insight !
200W is not much heat. Water cooling it is like killing spidermites with a flamethrower. I'm water cooling 5400W, which is enough heat to cause serious problems in an enclosed space.

Not so long ago, 200W was just a couple of light bulbs.
 

Schalalala

Active Member
Hey Lumenladen du kleiner Schalartan, was geht bei dir? Hast du allen ernstes extra das Alu hinter den COBs weggeschnitten damit das Wasser direkt an die Cobs kommt?! Mega-Fail!
Es ist wirklich der Hammer zu sehen wie du dir selbst einredest das dein "System" das beste der Welt sei und dabei nicht in Ansätzen verstanden hast was da auf physikalischer/thermodynamischer Ebene passiert (siehe das Geschwurbel über den Wirkungsgrad oder diese unglaublich peinlichen Löcher hinter den COBs). Und dieses Wirre zusammenzimmern von Erklärungen deinerseits... einfach nur peinlich. Du bist der Trump der LED-Lampen-Welt, nur in "gescheitert". Der größte Scharlatan der hier rum läuft.
Aber mach hier ruhig weiter, hier findest du auch genug Leute die geistig auf Augenhöhe mit dir sind. Big ups mate!

@mahiluana
Wow, i am impressed! You've really mastered this cooling technology!
 

mahiluana

Well-Known Member
Du bist der Trump der LED-Lampen-Welt
only google can translate your post :


Hey Lumenladen you small Schalartan, what goes with you? Have you all serious extra the aluminum behind the COBs cut away so that the water comes directly to the Cobs? Mega-Fail! It's really the best thing to see how you feel to yourself that your "system" is the best in the world and have not understood what is happening on a physical / thermodynamic level (see the swagger about the efficiency or these incredibly embarrassing holes behind The COBs). And this confusion of explanations on your part ... just embarrassing. You are the trump of the LED lamp world, just in "failed". The biggest charlatan runs around here. But keep quiet here, here you will also find enough people who are mentally with you. Big ups mate! @mahiluana Wow, i am impressed! You've really mastered this cooling technology!

********************************************************************************************************

>:( @Schalalala - you can call me Trump - I call you fucking, german Nazi OK. ?

Without english - without brain - I will reply in suaheli to your next post !!!...

@Schalalala - Unaweza simu yangu Trump - I kuwaita ninyi fucking, german Nazi OK. ?
 

Schalalala

Active Member
Hahaha, jajaja du verstehst mich schon du peinlicher Clown ;) . Grower.ch lässt grüßen! Ich hab auch nix mehr zu dir zu sagen, dafür ist mir meine Zeit zu schade.
@the others
Sorry for this german post. This guy has flooded german grower forums with advertisments about his bad designed lamps and even claimed that his chinese grow LEDs were better than CXBs... this guy rips of beginners and that is not fair.
Its funny that he now claims not to understand german after linking pictures with german text and even posted a link to a german site. Like that is what you do when you speak "suaheli" :D .
 

ttystikk

Well-Known Member
Hahaha, jajaja du verstehst mich schon du peinlicher Clown ;) . Grower.ch lässt grüßen! Ich hab auch nix mehr zu dir zu sagen, dafür ist mir meine Zeit zu schade.
@the others
Sorry for this german post. This guy has flooded german grower forums with advertisments about his bad designed lamps and even claimed that his chinese grow LEDs were better than CXBs... this guy rips of beginners and that is not fair.
Its funny that he now claims not to understand german after linking pictures with german text and even posted a link to a german site. Like that is what you do when you speak "suaheli" :D .
Schönen dank!
 

ttystikk

Well-Known Member
Hahaha, jajaja du verstehst mich schon du peinlicher Clown ;) . Grower.ch lässt grüßen! Ich hab auch nix mehr zu dir zu sagen, dafür ist mir meine Zeit zu schade.
@the others
Sorry for this german post. This guy has flooded german grower forums with advertisments about his bad designed lamps and even claimed that his chinese grow LEDs were better than CXBs... this guy rips of beginners and that is not fair.
Its funny that he now claims not to understand german after linking pictures with german text and even posted a link to a german site. Like that is what you do when you speak "suaheli" :D .
I had many water cooled CXB3590 powered modules made to my specifications. They are powerful and efficient.
 

Shugglet

Well-Known Member
@mahiluana thank you so much! Love to see data on this as I think about what I want in a light for my modest space. I would think a reservoir of water would store plenty of energy while radiating it to earth through the concrete in the basement. I'm curious what @ttystikk and others are seeing for dT's and flow rates in relation to light system power consumption. Im giving serious consideration to water cooled lights.

I have been researching lights and I'm thinking about 200 watts of softly driven cobs mounted in 2 rows serving a space that is -1.8 feet wide by 4 feet long long. Haven't decided which cobs to use. Efficiency is a primary design consideration of the light. I am thinking that the bar mount filled with water is the right setup for pump efficiency. Using larger conveyance piping also reduces pump power consumption. The hydronic system that heats my house uses a 9 watt pump to move 4,000 watts at 3 gpm, so it's clear that a very small amount of energy would be needed to move less than 200 watts of heat out of the grow space.

Thanks to all who have provided insight !
Just so you know any amount of flow is enough to mor heat in a system. Whether youre moving 500w or 5000w worth of heat, any water flow will move that heat. If you don't remove the heat somehow from the system you could use a 500w pump with 5000gph and it wouldn't matter. Pumps don't remove heat from the system.

For 200w of led lights though, hardly any heat will be created. So little that it will likely have little to no impact on your hydronic heating system. In fact, depending on how you connect to your hydronic system with your light it could actually be overall less efficient (your light may run cooler than your hydronic system, so your hydronic system would actually be adding heat to your light
 

mahiluana

Well-Known Member
I had many water cooled CXB3590
200W lamp power generate 100W of heat - and everybody with a 10gal bucket is able to store this heat in the cooling water. It prevents clearly overheated growrooms. -
Specially small one`s.
During the night - the lamps will work like a radiator and bring back heat to the air of the growroom.

So there is this reason for watercooling a 200W lamp - the other reason is:

I don`t agree to demotivate people because they are "only" driving 200W.

@brewbeer - A 200W lamp is pefect for the first steps in a watercooled DIY system.
I would always support somebody starting DIY and specially watercooled ones.

Someone who try - is motivated and keep evolution of tecnic in progress.
Watercooled light just starts up and I espect much moore in the future.

If you run 5400W in a watercooled system -maybe waterchilled with extra energy for big fans - I say: not clever enough to use this heat. You waste 15000KW every year.
 

Organic Miner

Well-Known Member
200W lamp power generate 100W of heat - and everybody with a 10gal bucket is able to store this heat in the cooling water. It prevents clearly overheated growrooms. -
Specially small one`s.
During the night - the lamps will work like a radiator and bring back heat to the air of the growroom.

So there is this reason for watercooling a 200W lamp - the other reason is:

I don`t agree to demotivate people because they are "only" driving 200W.

@brewbeer - A 200W lamp is pefect for the first steps in a watercooled DIY system.
I would always support somebody starting DIY and specially watercooled ones.

Someone who try - is motivated and keep evolution of tecnic in progress.
Watercooled light just starts up and I espect much moore in the future.

If you run 5400W in a watercooled system -maybe waterchilled with extra energy for big fans - I say: not clever enough to use this heat. You waste 15000KW every year.
I think most of us are to be supportive no matter what size you are trying to water cool; at least I am. Like you said it's a learning process.

@ttystikk does use that extra 5400w to heat his home, so he IS being clever. Go read his thread, it's quite impressive!
 

Shugglet

Well-Known Member
I think most of us are to be supportive no matter what size you are trying to water cool; at least I am. Like you said it's a learning process.

@ttystikk does use that extra 5400w to heat his home, so he IS being clever. Go read his thread, it's quite impressive!
Its about using the proper tool for the job, watercooling isnt always the proper tool.

And tty does reclaim the heat in his system. I wouldnt ask him any in depth questions about his system though, in my experience, gleaning useful information about his setup out of him is about as easy as trying to fly to the moon by flapping your arms.
 

ttystikk

Well-Known Member
200W lamp power generate 100W of heat - and everybody with a 10gal bucket is able to store this heat in the cooling water. It prevents clearly overheated growrooms. -
Specially small one`s.
During the night - the lamps will work like a radiator and bring back heat to the air of the growroom.

So there is this reason for watercooling a 200W lamp - the other reason is:

I don`t agree to demotivate people because they are "only" driving 200W.

@brewbeer - A 200W lamp is pefect for the first steps in a watercooled DIY system.
I would always support somebody starting DIY and specially watercooled ones.

Someone who try - is motivated and keep evolution of tecnic in progress.
Watercooled light just starts up and I espect much moore in the future.

If you run 5400W in a watercooled system -maybe waterchilled with extra energy for big fans - I say: not clever enough to use this heat. You waste 15000KW every year.
You assume I waste the heat. This is a bad assumption to make about me, lol
 

loftygoals

Well-Known Member
I have had the lowest heating bills ever this winter.

When it's -2C outside the house is between 14-18C just from the heat of my grow (water cooled 3600w vented into the house). I turned off my lights for 2 days while I was flipping a tent a couple of weeks back and... DAMN it was cold without the grow heat!

I only turn on the central heating if I'm expecting visitors or the temp drops below -5C outside. I've probably saved £800 ($1000) in heating costs compared to last winter.
 

mahiluana

Well-Known Member
between 14-18C
Once I rented an old big (3 floors 400sqm) house in Spain.
There was no central heating - only fireplace and wood.
I closed the open chimney down in the kitchen with metallframe, glas-door and hanged an old , used serpentine of an old gas heater inside.
I was able to suck 8000W out of the chimney into a 300L watertank with only 130,- EUR in buying copper pipes, steel, glas and a little pump. The set-up is always a pleasure, if you succed.
It was really a pleasant difference after installing this low cost improvement.

S6000770.JPG

The heat-capacity of water, compared to other materials is just a masterpiece of GOD.
Or let`s say - the whole world is watercooled - also you and marihuana is watercooled.
Without watercooling life on earth wouldn`t exist.

Do you also have a bigger watertank in your system ?
Storage is important in modern energy management bongsmilie (and please don`t misunderstand)

:fire: greetings to all
 

ttystikk

Well-Known Member
Once I rented an old big (3 floors 400sqm) house in Spain.
There was no central heating - only fireplace and wood.
I closed the open chimney down in the kitchen with metallframe, glas-door and hanged an old , used serpentine of an old gas heater inside.
I was able to suck 8000W out of the chimney into a 300L watertank with only 130,- EUR in buying copper pipes, steel, glas and a little pump. The set-up is always a pleasure, if you succed.
It was really a pleasant difference after installing this low cost improvement.

View attachment 3888177

The heat-capacity of water, compared to other materials is just a masterpiece of GOD.
Or let`s say - the whole world is watercooled - also you and marihuana is watercooled.
Without watercooling life on earth wouldn`t exist.

Do you also have a bigger watertank in your system ?
Storage is important in modern energy management bongsmilie (and please don`t misunderstand)

:fire: greetings to all
I've been working with water cooling for years and I still feel like I'm just scratching the surface.
 
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