Share it with your friends. ;-)

@@Bigelowbrook Friends?

اخي انت عربي؟؟؟

How it was working when u run a fan behind the rig. Is it perform well or not

@@hamzaaziz2955 very well, made a big difference. The fan was the same size as the radiator

Yes evaporative systems work best in desert areas because there is very less humidity in the Air and the rate of evaporation is very high due to which it produces super cooling

Alternative is shade cloth - folded/pleated or hang several curtain layers 1" gap between each, frame the whole curtain border with atomising misting garden sprayers - need several sequential shade cloth curtain layers to capture the water for efficient thermal evaporation - still need a bottom catch tank. this works just as well as commercial pads and easier to maintain.

Shade cloth comes in many weave densities 30-40% would be more suitable to allow for maximum air flow but still capture water molecules for thermal conversion.

After those comments, I did some testing myself and found that just adding 5 layers of shade cloth to the outside of the commercial cool pads (no spaceing between) with minimal intermittent mist sprays, have resulted in significant extra cooling 5-10c - eg 25% ambient humidity 33 Celsius, I'm able to achieve 19c.

@@user-di8il8ks5i Hello sir, a few questions please. I like the idea of shading cloths. Based on your experience, does adding layers, like 10 layers instead of 5, increase the efficiency of the cooling process? And why atomising sprayers? Would not be sufficent just water that fills the cloths from the upside? Another question if you please, is it possible to recirculate the water?

​@@offlimit88 1. **Efficiency of Adding Layers of Shading Cloths**: Increasing the number of layers of shading cloths can indeed improve the efficiency of the cooling process. This is because each additional layer offers more surface area for water evaporation, which is crucial for enhancing the cooling effect. However, it's essential to consider the balance between added layers and potential diminishing returns. If the weave density or hole size of the shading cloth becomes too restrictive, it may limit airflow and hinder evaporation efficiency. To address this, one approach could be to increase the physical area covered by the shade cloth. For example, if the cooling pads cover an area of 4 square meters, expanding the shade cloth area to 10 square meters would provide more space for air circulation and enhance the cooling potential. It's important to note that the shade cloth primarily serves as a pre-cooler to the cooling pads, enhancing their overall effectiveness in cooling the greenhouse environment. 2. **Atomising Sprayers vs. Water Filling the Cloths**: Atomising sprayers are used instead of simply filling the cloths with water from the top for several reasons: - Atomising sprayers create smaller water droplets, which increases the surface area exposed to the air, leading to faster evaporation and more efficient cooling. - By atomising the water, it can be evenly distributed across the shading cloths, ensuring uniform cooling throughout the greenhouse. - Atomising sprayers allow for finer control over the amount of water dispersed, preventing oversaturation of the cloths, which could lead to dripping and inefficient use of water. 3. **Recirculating Water**: Yes, it is possible to recirculate the water in the evaporative cooling system. Recirculating water can help improve water efficiency and reduce water usage, as well as potentially lower operating costs. However, it's important to monitor water quality and periodically replace or treat the water to prevent the buildup of minerals and contaminants, which could affect the efficiency of the cooling system and potentially cause damage over time. In summary, increasing the number of layers of shading cloths can enhance cooling efficiency, atomising sprayers are preferred for their ability to create smaller droplets and ensure even distribution of water, and recirculating water is a viable option to improve water efficiency in evaporative cooling systems.

Won't using a UV filter, which is just a shitty UV lamp in a UV transparent and watertight enclosure, in the sump prevent growth of algae? a cyclone filter could take away any solids in the water, but would require figuring out where to place it due to this system being made quite compact in terms of not having a place to put it.

That was on my mind. Good idea.

The sump area is buried in ground now (didn't show that part) which holds everything in place. There's enough weight on it where nothing will move. I had to push it around a bit to get everything aligned and had to use a pry-bar just to move it around. Link to the temperature data is at the end of the video in the credits. ;-)

They do work... But they only work WELL in very dry places like deserts. In more than 50% humidity they are essentially useless and just make things miserable.

Check the followup video on the efficiency. They aren't useless at the higher humidity....even a few degrees drop in the greenhouse is a help! kzfaq.info/get/bejne/jsiIlM1lms7NpZc.html

He said that in the video.

I do, but not for the ag industry....there's no $$$ in it. ;-)

Disappointing.

Cool cells and foggers will cool the chicken house down very well!!

Yes, but their are differences on the way you use each system's,

He is using cardboard?

Thanks 👍

Awesome! Thank you!

There's a second video with some good data.

they're on the north side so there is no direct sunlight hitting them. The manufacturer says they should face this way to prevent algae from grown on them. I just installed them as told. ;-) There are two 48" fans on the other side of the greenhouse

facing the holes up is the best way to do it. As long as the spray bar is level, there is even distribution down the entire length.

It's used to expanded the Pex so it will fit over the barbed fitting. Then it shrinks back down and will never come off.

It's a special tool used for expanding PEX tubing, not a drill bit attachment.

that was an M12 PEX Crimper

LOL. good song.

most greenhouse suppliers sell them. I got them from Greenhouse Megastore

Link to that is at the end of the video. ;-)

This is a well proven tech for cooling water and used everywhere in large commercial facilities. That is what a cooling tower is.

I have three 3D printers, a laser cutter, and CNC cutter. ;-)

I work for a company that builds controllers for cooling towers so am fairly well educated about this. ;-) There's a bottle of bleach sitting next to the system.....

@@BigelowbrookOk nevermind ^^

Yes, definitely

0 cooling at 100% humidity

There's a link at the end of the video that shows all the data on how effective it is at different humidity levels.

There's a second video that shows this. ;-)

Ok didn't know that. I'll look for it! Thanks

​@@craiggreenwood6496 kzfaq.info/get/bejne/jsiIlM1lms7NpZc.html and kzfaq.info/get/bejne/o5aAnLiBl5_YkXk.html

@@Bigelowbrook Don't know how I missed that. I've now seen it. Incredible! Thanks

I thought about doing it like that but it would be difficult to get to the pump since it would be under the pads.

the link to the second video is in the end credits. ;-) kzfaq.info/get/bejne/jsiIlM1lms7NpZc.html

went back here to say the project is a success! cheers!

Yes. Thankfully we have very good water. At some point I will have to replace the pads. If they last for a season, I will be happy.

I'm told running a vinegar/water solution through the system for an hour or two as regular maintenance is pretty effective.

the pads can be found at most greenhouse suppliers. The brackets are made from some scrap metal I found

Celdek

www.amazon.com/gp/product/B005FYN7OM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

We're in CT. During the summer the humidity is usually over 70% during the day.

no problem with mold. At the beginning of the season I'll add some bleach to sanitize it. These pads are 5 years old...probably will be ready to replace in a year or two.

our water is crystal clear. The well is 500' and through solid granite. It will take a while before anything will start to accumulate on them. It's the intake of bugs and pollen that will be the long term problem.

There are additives to keep build up minerals suspended in the water which can be drained off periodically, and cleaners that help remove them, The pads seem to preform better on the second season.

These are standard cooling pads you can get from a greenhouse supplier. I keep a bottle of bleach next to the sump. ;-)

a couple of days because of the time to film it. The expansion tool is common for plummers that use pex tubing.

Pex Expander

It's already installed. ;-)

Bigelow Brook Farm (Web4Deb) excellent, did it help?

What he has essentially built is what the commercial/industrial HVAC industry refers to as an air-wash. I'd research there limitations before proceeding with this type of evaporative cooling. Humidity and ambient air temperature (wet-buld) will determine their cooling capacity. I believe his build was based off this video: kzfaq.info/get/bejne/jdihdcl_ub23l30.html

I based mine on the FarmTek setup, but this video looks about the same. Relative humidity has a huge factor on the efficiency of these.

Thanks guys

Evaporative cooling pads....design just for this. Most greenhouse suppliers sell them.

@@Bigelowbrook i have never heard of them before. Are they a recent product to market?

the water should be treated with chlorine...they really aren't great for cooling a house...something like a chicken coop or greenhouse is ideal!

Well I think they figured out it was a mistake. This was ten or so years ago. They're both gone now.

Arizona has the ideal climate for evaporative cooling... hi temp, low humidity. Sounds like they didn’t open enough doors and windows to keep the air moving through. That’s the biggest problem with lack of performance... ie: user error. And please, don’t ever put chlorine into a cooler for your home! Just make sure to drain all the water out every time you turn it off.

@@axelknutt5065 As I've said, this was my parents. I have no idea exactly what happened as I lived in WA state. It's possible that the person who installed it in their house just didn't know what he was doing. It's unlikely my parents kept their windows closed because they loved the outside air. I know that because when I visited them, they always had their windows opened and this was in the spring.

Mold is a killer.

Connecticut. Check out the second video! kzfaq.info/get/bejne/jsiIlM1lms7NpZc.html

That’s a bit of a misconception ... my company exports thousands of evaporative coolers to the Philippines, Sri Lanka, Turkey, UK, Germany, Spain, India, Bangladesh and South America (and Middle East and Northern Africa) But as you say, the key is letting as much air out as you pump in. BTW a strip of the filter media cut at 90 deg to the main pad (about 1 1/4” high) and glued across the top will spread the water evenly over the width of the panel.

I saw one working well in Michigan years ago.

We had them in Dhahran. They were 2 stories high and filled an entire traffic roundabout. Huge fans and the waterfalls were noisy and audible for blocks but forced the cold air thru underground pipes to homes up to a mile away. Air was so cold you almost froze to death inside the homes when it was 125 F outside. Of course it is very dry there next to the Persian Gulf, except at sunrise when all the moisture 'rains' for about 10 minutes and disappears.

most greenhouse suppliers sell them. I got these from Greenhouse Megastore

Late reply, but I have used solvents before that claim that cleaner is not needed and personally have still had leaks and other problems. I would recommend still using cleaner, its not that expensive and doesn't take much time.

PVC cleaner is awful stuff that makes my head spin. But......I use it anyways because without it I have had the occasional leak.

Make a homemade solar pattern to run the pump, then you don't have to ask the question.

Please watch the follow-up video. kzfaq.info/get/bejne/jsiIlM1lms7NpZc.html

It's a special power tool for expanding pex tubing.

It's a tool you get to expand uponor pex. It makes water tight fittings that don't use any adhesive.

The only Climate problems we have exist in your mind after Indoctrination has done its work on you.

@@macclark4112 Yes of course. Floods, hurricane seasons for half of the year, volcanos erupting for months at a time, the extinction and endangerment of species, forrest fires around the globe that extend without end, the polar caps melting and the waters moving closer to the shore eradicating beaches and coast lines because of rising sea levels. The only indoctrinated are those who ignore science and evidence to puppet the lies and conspiracies fed to them by the ignorant, who‘s agendas are motivated by greed, while they illogically cut off their proverbial noses to spite their proverbial faces. It’s very clear who is who.

Those man-caused volcanos are a real bitch.

Were I get mine. www.qcsupply.com/catalogsearch/result?q=evaporative%20cooling

Standard cooling pads available at most greenhouse suppliers. Greenhouse Mega store, FarmTek, etc.

Link is in the end credits.

the channels go both up and down depending on where you look at the cross section so it doesn't matter which way they go in. Black goes on the outside to help reduce algae

Most greenhouse or farm suppliers sell them.

@@Bigelowbrook What is the price per 1m2 please?