Solar powered air conditioning

CSIRO has invented a new three in one solar air conditioning system that provides hot water, cooling and heating.
It works by using heat from the sun and employs both desiccant and evaporative cooling technologies.
See how the technology can work in the home.
Video transcript available here:
www.csiro.au/news/transcripts/...

[@Karamdja]

Wow! Great! Please come to Buenos Aires! Your technology is dearly needed here.

[@MoneyTreeCare]

Always love these sorts of videos. Thanks for posting it... I started to do videos too, but never know if I can measure up to the better stuff out there lol!

[@BillWilhelm]

So, basically, a swamp (evaporative) cooler that works in humid areas. Seems like that desiccant wheel would have to be enormous to work efficiently for a whole-house system though.

[@katzrantz]

i knew solar powered aircon would be a thing sooner or later. this will also put less stress on electricity grids during heatwaves and reduce the chance of blackouts, excellent work

[@csiro]

No problem. The desiccant materials we have tested include silica gel, zeolite and polymer. All work, some better than others.

[@charlestaylor3195]

An indirect evaporative cooler that delivers cool dry air, the most critical part in the system, and it does not exist. Those desiccants you tested are little packets they package with electronic products that say "Do Not Eat", and I'd like to see how easy it is to remove moisture from them if you can.

[@imemine7]

@@charlestaylor3195 Dessicant wheels are in widespread use already.

[@TheGuzzmeister]

Heh. They use industrial sized packs (think 2kg bag) in aviation to keep engine parts dry in storage. Used desicant bags are microwaved to remove the moisture and then re-used.@@charlestaylor3195

[@OwensBoatClub]

I'm so pinching this idea.. thanks for the heads up..CSIRO thingy... Belize here i come!!!!

[@csiro]

Hi Michael. An indirect evaporative cooler incorporates a heat exchanger. It draws in fresh air which passes through a dry channel where it is cooled without adding moisture. Cooling is provided by the evaporative cooling effect on the wet (cold) side of the heat exchanger. The extracted moist air from the wet side is vented, so it’s only dry cool air that goes into the building.

[@robvoyles]

What is the delta T. In other words if the room temp is 75, what will the supply air temp be as you typically need a 15 degree drop in temp to actually drop the room temp in a reasonable amount of time.

[@csiro]

There is no fixed limit. It depends on the ambient air humidity (more moisture is removed from more humid air) and temperature, and also the temperature of the solar heated hot water (hotter the more dehumidification).

[@jimbob-jn6jz]

Whats the point is saving emssion if ya just gona open a new coal mine every other year!

[@AutoNomades]

@@jimbob-jn6jz Less you need to consume less you need to open mines ?

[@arthurgol500]

​@@AutoNomades this system would be much more efficient than the present airconditioning tech. We need some kind of breakthrough in solar panels though, I feel like this technology might be suffering suppression because it might disrupt society, Imagine abundant energy... for everybody something like that could even break capitalism logic of scarcity...

[@SuperKrazzyk]

Amazing product, much impressed. We have a humidity here of about 80%. Would the cooling be efficient with such high humidity? and what is the lowest temperature we can reach?

[@slimanelatreche4263]

This is a very interesting solar energy application I am looking for indirect evaporative cooler providers.

[@ajayshrotri2610]

hiii... this project was awesome ... this project when came in market and it only for Australia or all over the world ....

[@SandeepChadha]

Excellent thought. Very much desired for India. We have Sun throughout the year !

[@shamsatam1210]

innovative product

[@RK-fi7ek]

Is it possible to buy this in India, State of Kerala? Please let me know

[@nc3826]

FYI, radiant cooling which is very efficient but still needs a separate dehumidifier to dry the air. So an effective solar power desiccant wheel dehumidifier would be useful for many applications.

[@stuffofstudy5278]

Very much needed in india

[@Relaxingsadhnamusic]

I want to build this system now please support...

[@khemkaslehrling3840]

It's caled a swamp cooler. Works great in low humidity, not at all in high, plus has a fixed temp drop of about 25 degrees, so if it's 110 out you can get to 85, better than nothing.

[@michaelstedman9238]

yes, it is a swamp cooler... but you didn't notice what they were doing to the air BEFORE it got to the evaporative cooler - they are DRYING it. So, they pre-treat the air by dehumidifying it before sending it to the evaporative cooler (which adds humidity back into the air)... the result is cool air (colder than regular swamp air), that does not have an increase in humidity. I think I have seen an efficiency gain where the temperature drop is about 35-40 degrees (F) instead of just 25 degrees, as you stated.

[@lkfabian]

This sounds fantastic! Can it be linked to an existing solar hot water system?

[@johnsmith4630]

so, you us an evaproative cooler, but to compensate for the humidity it would add to the air in the hosue you pre-dry it w/ the dessicant wheel??

[@pod52]

Correct me if I'm wrong. But besides the fact that the dessicant wheel itself is already hot, doesn't the dessication process itself heat up the air anyway? Dessication and evaporative cooling are both just the processes of converting sensible to latent heat and vise versa. When you pass the air through the dessicant, it loses water vapor but the water vapor has to release energy to the air to condense to the dessicant. Likewise, when water vapor is evaporated by the air, the air experiences a loss in temperature as the water has to absorb energy from something to turn into water vapor. In an ideal process, the enthalpy or total energy of the air (in the form of sensible and latent heat) has to stay the same. Given this, isn't the addition of a dessicant wheel redundant then? The decrease in temperature that can be attained by the air was already dictated by how saturated with water vapor the incoming air is.

[@gilesrobinson4725]

been waiting a long time to find out if this is good to market? can we please get an answer....

[@michaelspicer2339]

Hi, Thats fantastic. Can you refer me to a reputable installer in the Northern NSW / Gold Coast area so we can get more info. Thanks

[@gilesrobinson4725]

do we have some knew on the cost yet?

[@csiro]

Yes the process is patented.

[@develote7670]

Where can we buy this?

[@Footrotflats251]

ill use this - whats the all up cost - we have 3x 2500w electric heaters and 3x 1000w electric heaters in our house and a large evaprotive air conditioner that isn't very efficient this might be the solution for us (and we have an electric guzlin H/W heater)

[@BillySugger1965]

Great idea. What's the scope of IPR (patent coverage) on this? What would we have to work around to make something like you've shown here?

[@youngrenzy]

I live in Michigan where it gets to 100f or 38c and very high dew point... Winter and very cold -20f -29c. I wanna see it work here

[@jesseaddison250]

Great idea.

[@flamefurnace]

This is amazing! I hope we have this in the US already.

[@robvoyles]

(energy) to the incoming outdoor air. Most energy recovery devices transfer heat (sensible) energy only. An Enthalpy Wheel allows both heat (sensible) energy and moisture (latent) energy to be exchanged. The Enthalpy Wheels are usually made of porous materials to increase surface area which aids in energy transfer. In most cases a matrix core material is coated with a desiccant such as Silica Gel or other molecular sieves to increase latent transfer. The Enthalpy Wheel, coated with a desiccant material, is rotated between the incoming fresh air and the exhaust air. Heat and moisture are given up to the wheel. When the space is in the heating mode, the heat and desirable humidity is used to pre-condition the incoming, cold, dry air. In the cooling mode, the incoming air is pre-cooled and dehumidified. Because the cost to remove moisture can represent 30 to 50% of the cost to condition air, substantial additional savings are available with enthalpy wheels over conventional air-to-air exchangers. Summer & Winter Energy Recovery Wheels

[@akshayjambagi9734]

it is also use in winter days? To convert cold air into hot air???

[@sergejpanov5543]

The desiccant material stays damp all the time, as 2nd compartment gets humid air from outside. I don't see any fans recirculating air from the 'hot water' pipes, unless the air is isolated there to blow into the desiccant, it will be humid as well. You have to have dry, not humid air to start with to dry the desiccant.

[@nihalrevankar5658]

they cant show everything in the video!

[@M-Cycle]

This 3 in 1 system could be dramatically improved by new recent technology breakthrough of Valeriy Maisotsenko and our R&D team. Look at M-Cycle providing 100 deg. F Cooling Demonstration - 60 deg. Celsius air cooling. M-Cycle is well-known in Australia. Using M-Cycle your solar-powered system could be Siberia-cold and Sahara-hot @7hvA

[@hakanb.7405]

where do the blue points come from ? :) where is the cooling section?

[@Lastindependentthinker]

Long overdue concept. I don't mind so much that it's hot in summer. what makes it harder is that it gets so hot at night that you can't get a decent nights sleep. only 2 hours if you are lucky. one of the drawbacks of evaporative cooling is the celdek pads need replacing. what would the maintenance be like on this system. would you need to replace the desiccant wheel every couple of years. also keeping the spiders out...

[@PhotonHerald]

There's one area I worry about with this. Air quality. The desiccant wheel is cycling between both chambers, and it's picking up particulates from the air in both. Which is then being recirculated through the house.

[@mandarkokate5613]

Can you give calculations of this

[@nephilimborn]

How often does the desiccant disk need to be replaced?

[@karrarsiddique5386]

Hi, is it already available as a commercial product for domestic application? Thanks.

[@catcat7835]

The thermo acoustic cooling is a way more effective and better. BTW, there even better, simplier and cheaper solution, use ground with always constant temperture for cooling and heating.

[@smokeweedaily]

Is there a limit for the amount of humidity in the outside air that would drop the efficiency of this system?

[@nobel7960]

And what about the maintenance cost of material that is certainly in heating and cooling conditions? Certainly it will detoriate fast.

[@desking8065]

no water pump required as the hot water system is equipped with a circulation pump. Hot air or cold air to house depending on time of year minus the humidity.

[@farmerjohn7756]

This is effectively a two stage evaporative cooler. The first stage is described in this video where the incoming air in chamber two is desiccated and cooled slightly by the desiccation (the act of removing water from the air medium cools the air slightly). This desiccated slightly cooler air then comes across a typical evoprative cooler (stage 2) where it absorbs more water than normal, thus cooling the air more than a single stage evaporative cooler. The real question is, does this provide better cooling per litre of water?

[@farmerjohn7756]

The answer per litre should be negligible, since I don't think the heat transfer changes much given the temperature of water during evaporation. The next question is does this offer a better cooling per watt of solar energy? You would have to do comparison to solar panels versus this system.

[@nc3826]

FYI, radiant cooling which is very efficient but still needs a separate dehumidifier to dry the air. So an effective solar power desiccant wheel dehumidifier would be useful for many applications. So when will it come to market?

[@javwildman]

Only works with the Metric system.

[@nc3826]

Relevance???

[@theecoinitiative7788]

The CSIRO produced printed thin film photovoltaic cells about 5 years ago too, still not on the market as far as i can tell... There is and has always been a major disconnect between researchers and manufacturers. They might well just make these videos and hope for a company to make them a sizeable offer, where as most companies would prefer to spend the money on their own research that they can patent.

[@michaelbrebrich7124]

I doubt it would ever come to market. Modern A/C units based on compressed refrigerants are highly efficient, relatively inexpensive and easy to install.

[@eujeeves]

Just like Beyond 2000. Sounds exciting but wait 50 more years before you can actually have it.

[@chopinxjf]

how about this timelife?10 or 20years?every 20 years to replace a new system?

[@definitelyjulia]

What about mold collecting in the fan? Would it not be prudent to have some type of UV light to treat the air before it's being sent throughout the house?

[@shwnshts9469]

That's what HEPA filters are for. BUT the application of silica desiccant which ADSORBS not ABSORBS MOISTURE is specific to it's own antifungal properties. True it's not fungicidal. But it's the toxin not the mold that kills ya. So it could be ANYWHERE in the duct or house and do damage. Unrelated danger avoidable or not. It is known to pull nitrogen from the air "scrubbing" it so a higher concentration of Household O2 is possible. That can be dangerous. But not REALLY. Iirc 😉

[@sylviafuller9341]

you should add links to your products.

[@truongluuhoang1736]

Thanks

[@mohimadvani6425]

main questions are not answered. price, whether it can be incorporated in a flat,or only useful in independent bungalows, how much space does it require. how much does it cool,what is the maintenance cost. dessicant wheel will have to be changed after a certain amount of time,I think. how much power does it draw? so many unanswered questions.

[@ajayshrotri2610]

and how much area cover in one unit ?

[@The16june76]

Can be only be little efficient as it's use dessicant to dry for cooling only little effective mostly on coastal areas as coastal areas real feel is more hotter than the actual temperatures

[@jaanusify]

nice idea

[@AB-ov1zm]

I would like some more information please

[@lmlmd2714]

I understand a full scale version of this was installed in a mall in Ballarat. Is CSIRO partnering with any company to actually bring this to market? Given sky high electricity prices, there is surely demand for this?

[@ClissaT]

Well the first sentence in this video was very presumptive! Firstly, although I am in SEQld, I have no heating or cooling in my house and my hot water is on the lowest usage tariff and I use very little anyway. I would not produce 5ton of GHG per decade let alone per year! This is why I am looking at alternatives for a/c. To keep my GHG to the lowest level! As I am now in my twilight years and the summers seem to be getting hotter, I have been advised to get AC. But the extreme power usage weighs heavily on me, so some research is required before summer takes hold again.

[@robertweekley5926]

ClissaT - On KZbin there is a Video, "Citrus in Nebraska" and on the Net, 'Citrus In The Snow", where they describe very simple, effective, base Cooling systems, that the person involved, has spent 20 years on Tweaking it, for reasons Different than yours, in part, but getting the Benefits you want! Also, in his case, it's used to warm his House, and Greenhouse, in the Winter!

[@mehranrasheed172]

does it capable for commercial building ?

[@dadesign6617]

Where can we get this?

[@awishhamza6368]

How it will cool the house. Descant wheel will raise temperature minorly. How air tempered will drop, its not explained

[@bicanoo_magic3452]

That actually made me overly emotional it is that good of an idea..(sniff sniff)

[@cesartabasa3204]

Is it sold in the Philippines?

[@gilesrobinson4725]

come on CSIRO WHEN IS THIS COMING TO MARKET??????

[@normamuller1512]

Yes, I would like to know that as well, WHEN?

[@pat34lee]

Never. It will always be too expensive for a swamp cooler.

[@mdjabedmiah1128]

@@unclephil4112 🤣🤣

[@dhenbhoy]

Has this product been manufactured yet?

[@elias9027]

deseo saber cual es el costo del equipo listo para instalarlo en una casa en barrancabermeja santander colombia temperaturas de 33 hasta 40 grados centígrados

[@higreentj]

This would be far more effective if it was installed in a passive house (highly insulated, with triple glazing, drawing in air from underground pipes).

[@robvoyles]

Geothermal.

[@paulmaxwell8851]

My wife and I do live in a passive solar home, with triple glazing and earth pipes supplying fresh air. The walls are 12 inches or 30 cm thick, insulated with blown-in cellulose. R48 or so. We have R68 overhead, and R36 underfoot. We have no need for air conditioning at all, as all that insulation keeps the heat out in summer. Our summers here in British Columbia are around 30-35C. The house is always comfortable. Now, I'm not saying our home would be able to withstand the 45C heat of Australia. That's a big challenge for any home designer.

[@AutoNomades]

@Salvatore Guidone It depends.. Strawbale houses can be cheap, comfortable and well insulated..

[@GlobalParamedic]

Come to the UAE please?! 😀

[@michaelmcquaid693]

How effective is this system in a very humid environment? Does it reduce the humidity of the air as well as cool it?

[@Digital111]

2:05

[@AB.Motivation1]

I,m interested to know more. Very much desired for Afghanistan. We have Sun throughout the year !

[@sarathr3543]

how the rapid cooler in the 2nd compartmetn works??? does it works with electricity???????

[@csiro]

The indirect evaporative cooler works by using a second evaporatively cooled air-stream to cool the main air-stream. The system uses a small amount of electricity to run a fan that distributes the air and to run a water circulation pump.

[@agn855]

@@csiro - So, bc you already using solar thermal heating, that small amount of electricity could come from a solar panel, right?!

[@charlestaylor3195]

@@csiro a second evaporatively cooled air-stream to cool the main air-stream? If you are going to make stuff up, can't you do better than that. Try to make one, then, get some real scientists working there.

[@screaminlordbyron7767]

Scaled down it could be good for an rv.

[@TommieleRoux]

What a simple and elegant solution - well done - make it a compact single unit for easy installation, then it should be installed in every house worldwide by governments and everyone WIN

[@robertblankson9400]

Tommie le Roux YES I WOULD LIKE TO INSTALL ONE IN MY HOUSE IN THE PHILIPPINES.BRAVO BRILLIANT IDEA CSIRO AUSTRALIA. SEND ME MORE DETAILS.THANKS

[@jamblack3247]

Dis you find any more information did you build one love to see

[@harrisondodge6956]

Okay, but what if you need to sweat? There's nothing that's actually cooling the air except for evaporation, which significantly raises the humidity and reduces your body's ability to cool effectively. And for reference, when you remove water from the air, you also heat it up. that's just a part of the condensation process. So this does nothing. I was thinking this would involve something similar to an einstein refrigerator, which uses the heat of a flame, combined with liquids that have different rates of expansion and density, to cool the air going into the house. My family had an old motorhome with one of those, but unfortunately I don't think that would have a high enough efficiency to overcome heating by sunlight. maybe if the house was super well-insulated.

[@finnegan40]

great idea... When will this system be available to install in our homes?

[@nephilimborn]

Make your own super simple

[@charmanttheodore5493]

Questions: 1. Does the humdity escape somehow before or after the dessicant material? 2.Is the dessicant a disposable feature, and if so, 3. what is the replacement cost? 4. what is the replacement interval? 5. Is there a chance of mold accumulation over time?

[@mokhtargheasaryan5250]

Great!, how can I find more information about this solar air conditioner?

[@nephilimborn]

There are already plans online for a smaller 1 room design that could easily be made larger for a whole house using pc power supply 4 inch pvc and a rotating desiccant disk on youtube works wonders

[@gladysrodriguez5350]

Just wondering... is this only available in Australia? Or can this system be adapted in other countries and in larger projects?

[@jobseeker1612]

Gladys Rodriguez This could easily be adapted to any area that it is designed to work in. The only changes would be motors and voltages etc. I think. This could also be scaled very well for large office buildings.I can see this replacing cooling towers somhow in the future. Possibly much more efficient and possibly less maintenance.

[@paulinevaneeden4099]

Where can I get one?

[@wasimsajzad9908]

How did you sell in 2020?

[@ahadfaisal8466]

can i bring this in my tegnologie in my country

[@AhmedAbdullahDashi]

Are there any way to contact you .. I have a senior project and would like to know more about this innovation ..

[@MrAhmed1451992]

we will make a graduation project on this idea and we need a help from csiro how can we contact with u ?????

[@JohnCunninghamTeam]

Will this system work well in an arid/dry climate like Phoenix Arizona United States? Or, is conventional air conditioning the only real solution? Temperatures average 107°F or 42°C and do reach temperatures north of 115°F or 46°C. Is your system available in the US?

[@nc3826]

Since in you are area you don't need the solar heated desiccant wheel to dry your air it would be very little use to you. So a simple low cost evaporative cooler could be effective but if don't like higher humidity. Look into radiant cooling with geothermal direct or heat pump cooling source. And consider storing the waste heat into a Hot Water Tank. There are solar heat exchange tanks that can used. Why waste it? Except for evaporative coolers most of this will cost more than an air to air A/C unit but should save money in the long run. Good luck... Radiant cooling - Wikipedia en.wikipedia.org/wiki/Radiant_cooling Geothermal heat pump - Wikipedia en.wikipedia.org/wiki/Geothermal_heat_pump

[@JohnCunninghamTeam]

Thank you for the details.

[@nc3826]

NP, feel free if you have any other questions or updates on what you decide to do...

[@wafi0123]

Yes

[@ehabtuffaha4083]

The big question is where is the heat sink ???? You hide something which is at the end its cooled but how ???

[@refusoagaino6824]

It went over my head. How do you heat water with the sun, bring that heat into the house and make the house cooler? I've used excess heat vented out the roof to bring cool air into the envelope from under the slab. I don't get this.

[@DarkBeastization]

You should atleast read a little about adsorption/absorption refrigeration/air conditioning before making such stupid statements

[@prasannamondal301]

Where does the hot dry air go during summer?I mean,in summer,the cool air is being circulated,but where does the hot air go,which passes through the 1st compartment?

[@charlestaylor3195]

Are you kidding hot air travels through the house during summer because it doesn't work.

[@canusakommando9692]

Install earth exchangers at about 18 to 22 feet in the ground. A constant temp of 54 to 56 degrees Fahrenheit with unlimited amounts of energy can be obtained. Always cool in the summer and a base amount of heat in the winter. The deeper you go the warmer it is.

[@robvoyles]

Geothermal.

[@nc3826]

Moron that just trolls repeating Geothermal gets likes lol

[@nc3826]

FYI, radiant cooling which is very efficient but still needs a separate dehumidifier to dry the air. So an effective solar power desiccant wheel dehumidifier would be useful for many applications.

[@javwildman]

WTF Feet ? Fahrenheit ? Get with the program. If you want to convey your message to the other 95% of the world please use the Metric system and Celsius.

[@nc3826]

Dear, Metric NAZI, the is program no matter what you have been told. Your not the leader of 95% of the world so your opinion on this matter is meaningless. And people will keep using the measurement system they are most with comfortable using like it or not. Kinda like you are just comfortable making worthless troll comments. So enjoy having your "Feet" in your mouth. Have a good day, Sir.

[@Marc9889]

The dry air that flows through the desiccant wheel passes through an evaporative cooler, creating a temperature differential of how much? So there are two fans that move air and presumably some device that sprays water on the heat exchanger in the cooling circuit. Not to be Negative Nancy, but it sounds like two fans and a pump are consuming electricity for maybe / optimistically -2 degrees of differential. Can you share some test results?

[@nc3826]

FYI, radiant cooling which is very efficient but still needs a separate dehumidifier to dry the air. So an effective solar power desiccant wheel dehumidifier would be useful for many applications. Evaporative cooler have been used in dry climates for long time so that is not the major issue. What has been missing is an efficient longer lasting, reliable way to dry the air. So the real issue is with the desiccant wheel and the associated systems. Desiccant style dehumidifier have been largely replaced with less efficient heat pump dehumidifier since the desiccant loss their ability to dehumidifier. So the key an effective desiccating system. And the fact is CSIRO is just a think tank and the idea is decades old, even I thought of a variation of how this concept could work. But the devil in the detail. Good luck to someone make it really work....

[@JohnAK72]

How does it work in real life? does it provide air sufficiently ?

[@alexandrevaliquette1941]

Not at all.. but hey, keep the secret ok?

[@rayiqiraq]

How much the cost of this system please ?

[@Xyleryx]

Please bring this to the U.S.! free us from these greedy and corrupt electric companies!

[@SONUAGGARWAL]

Why don't you mention price ?

[@AJTarnas]

I live in a desert, cold in winter, hot in summer. Humidity generally under 20% in summer. How would this work with 20% humidity, 35C outdoor air temperature?

[@PlasmaNode]

Dry air is easier to cool then humid air. In very dry and hot locations you can use an evaporative cooler to cool the air and also add humidity. Basically, a swamp cooler. But you can't use a swamp cooler in very humid environments so you need to dry the air first. That's what this system does. It dries the air and then adds a bit of humidity back to the air both to cool it and keep it at a good humidity level.

[@AJTarnas]

@@PlasmaNode I understand the general principal. I use a swamp cooler almost daily. It is not particularly efficient -- certainly wastes a lot of water, in a water-scarce region. I could not find any research papers associated with the video above. My best guess is that it works as you suggest -- in a humid region above 50-60% ambient humidity, it uses solar heat to dry out the dessivant, yielding pre-evap air of 10% humidity, then raises it again to more than 50% humidity. It probably relies on having a fairly well-sealed and insulated house with return ducts, whereas low-cost American evap coolers rely on direct venting to the dry outdoors once the humidified air passes through the conditioned space (evap on one end, open window on the other). From what I can tell, this CSIRO invention is not directly useful for my situation because of how large and expensive it is. It is related to a recent Tech Ingredients video which addresses someone in my situation -- trying to cool a relatively small space (under 50 m^2) on a small budget ($500 or less) with limited electricity (solar off-grid) and limited water (hauled and rain-caught, no well or grid supply).

[@poppys3728]

So, what supplies the evaporative cooler?

[@AutoNomades]

Do you mean mechanical power ? Many ways can be used as photovoltaic, low temps stirling engines, mandolino..

[@harijana3428]

Sir I want official journal on this project. How can I get it (please provide it)

[@nephilimborn]

This isn't a new idea been around forever you can make one yourself with just a modicum of ability

[@nephilimborn]

As a matter of fact there is already an avaliable design online now using PVC 4 inch pipe a homemade desiccant disk ,that rotates for longer lasting, and uses PC power supply super simple design works amazing

[@paikamalpai2001]

It's still not clear how it works at night, as major time AC works at night.

[@MrBie]

Kamalaksh Pai the hot water tank will store the energy which can be used at any time.

[@AJTarnas]

There was a time when government research institutions would release their findings into the public domain and specifically tailor instructions for building their inventions for capable laypeople and mechanics in the general population, specifically farmers, ranchers, and shop enthusiasts. That era ended some time in the 1970s or 1980s. CSIRO -- if you can't find an industry partner within a year or two of inventing something useful, then you should publish your results, and publish plans for citizens to build your devices on their own. You are holding back the progress of civilization by withholding your discoveries.

[@michaelbrebrich7124]

100% right on. I want to know how they build the 'head' of the unit. The plumbing, Water tank and solar collector anyone can do.

[@denkok6667]

im not sure how you can get chilled air from hot water...Without the need for freon, to chill the air

[@lukebradley3193]

I didn’t know about it either until recently, but it’s the desiccation process. It’s basically the same way sweating works: heat energy is carried off as water evaporates leaving you cool, so basically they are making the air “sweat” by drying it out.

[@craigsealy4294]

Good idea i would like to get one, i will just get solar panels at the moment.

[@brandonlamontcooper8141]

I would test it first on a small scale in the beginning.. maybe marijuana grow room anthropomorphism 🌱

[@ytprabhu10]

I don't understand how the INDIRECT EVAPORATIVE COOLER'S work.... How it works ?

[@watchthe1369]

They spray water over a car radiator the water evaporates out the other side, air is pumped thru the radiator.......

[@gurudattapanda]

Dave Miller then the air become humid again, right?

[@AbdulRehman-hi3pu]

yes

[@nc3826]

The post clearly states "cool dry" not humid air since it would use a less efficient "indirect" not direct evaporative cooler that is not a mister but is a "heat exchange/radiator unit"... Just like the condenser part of a heat pump functions, just in terms of cooling the air...

[@benjahmon]

This technology is long overdue. Sign me up please.

[@acts9531]

It's basically just an overly complicated, low output swamp cooler (the "air conditioning" side of it) with multiple single points of failure. The heating aspect might work but the cooling is going to be weak to non-existent. Because among other things you have a very hot "desiccant wheel" constantly moving through the cooling side of the system. Gotta love those Aussies though, they're the kings of over-complication. That's why they do things like use three syllable words to describe something the rest of English language speakers use a single syllable for. "Billabong" vs. "Pond" for example.

[@donaldbadeaux5455]

Australia's climate is a lot dryer than SW Louisiana, or Florida, but would work great in Arizona...

[@acts9531]

I don't know about SW Louisiana, never lived there though having been through Alabama and Mississippi in the summer time I can imagine. Australia has a varied climate, from tropical jungle to alpine forest to desert. I HAVE lived there and it's not necessarily a dry climate unless you're in the desert. Funny thing about the climate there, in say someplace like Queensland -- It varies. There are very dry years and there are very wet years. You never know for sure which it's going to be. It could be droughts or floods or neither. So even more reason not to invest in this hokum because among the many things Aussies are good at, conning people is right up there at the top of the list.

[@csiro]

Hi Darren. The technology is currently being trialled in select residences. We're hoping that within a few years you’ll be able to have one in your own house.

[@wolfieaust4295]

CSIRO Hi there, is this technology available to buy in Australia yet?

[@gotytgotyt6566]

These are great ideas, hope you get partnerships with housebuikders, since it seems like an extensive installation for a house not designed to be integrated with these efficiency ideas