Refrigerant Types, Issues and Future

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In this video we will be learning the basic types of refrigerants, their history and future as well what impact they’ve had on our environment. Covering CFC, HCFC, HFC, HFO, Carbon dioxide, ammonia, CH, ozone layer depletion and greenhouse gases.


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Danfoss is your go-to source for information and resources that can help you through the cooling industry’s transition to natural and climate-friendly refrigerants. They have a deep understanding of all new regulations and their effects, and they’re ready to share their knowledge and solutions with you. They’ve also made helpful tools like their refrigerant retrofit guide, Low GWP tool and Coolselector 2 app available for free on their website.

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The Engineering Mindset says:

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Sand Hung says:

I always think the greenhouse gas effect, the warm gas is manufactured directly in earth. Now I understand that the heat comes from the Sun, reserved at earth

tonytor53 says:

Why not use liquid Nitrogen?

Heron Air Conditioning says:

What are the suspected long term effects on living organism as opposed to artificial

Richard Blakely says:

"Global warming potential" is a faulty theory. Surface temperature is set by convection in the troposphere, and not by infrared effects. Equations are simple and work to predict temperature on other planets also. They are accurate. Doctor Robert Ian Holmes has YouTube videos on the topic.
Therefore, the GWP of refrigerants is a total myth. Lawsuits need to be used to correct the laws that are making refrigeration systems expensive and dangerous.

Solexx X says:

R32, R290 and R744 are the only refrigerants that should be used. They cover low medium and high temperature refrigeration and heat pumps and are as or more efficient than any of the high GWP refrigerants like R410. They are also much less expensive. R32 can be phased out next. The use of monoblock heat pumps that are outside the home/business eliminate the sad old "flammable" BS that these companies always go to. Most of us in North America already have a gas or propane line entering our homes and this is never mentioned. Refrigerants including R290 are in hermetically sealed systems that pose far less threat than the gas line that is not a hermetically sealed system that runs into our homes.

Lucas Newlove says:

What if we mixed alcohol and water to lower the boiling rates and decrease the freezing rates so it's more suitable as a refrigerant

D Rodriguez says:

Would you be able to explain how refrigerant is heavier than air.. but also climbs to the ozone? Seems like a contradiction to me.

Khaiyachara DAE-Agri-news says:


Jim Pettinato says:

What everyone is overlooking is, the flamible refrigeranrs are mixed with oil, the combination is like napalm if there's a fire under the compressor

nota newbie says:

Does not lightening create ozone every time it discharges?

Big Tooka says:

Thank you man this really helped me with my thermodynamics class

Syed Faiyaz says:

Extra ordinary explanation

Aaron Crucillo says:

sir pasa brought me here

St. M. says:

i dont understand why this video has so few views

SciDOC says:

UV radiation is in no way deflected by ozone, even in this case the UV photon destroys the O3 molecule, but this is by no means as bad as it is with chlorine, in the natural process, it is sufficient that newly formed ozone can rise from the lower atmosphere back into the high atmosphere and fill the gaps

josem-cq says:

Do the refrigerant 136 exist?
My teacher told me to investigate its properties but I do not find it anywhere

Meleeman says:

I'm trying to build a cooling suit for van lifers so they can save on cooling costs to cool their bodies, and I was looking to use a liquid that could evaporate quickly at a low pressure and at body temperature, which would be cooled via a peltier device and condenser coil.

peter Francis says:

Thanx alot 👍

Joshua Styles says:

Glad that I finally know what an HFC is.

Dave Stenhouse says:

If the buildup of dense green house gases allows more infra-red energy to be reflected back to earth, why doesn't it also reflect more IR energy before it reaches the troposphere?

FuzzyPickLE530 says:

Just so you know…regulations don't drive increases in safety. Knowledge does. The reason why scientists years ago used dangerous substances was because they didn't know that it was dangerous. You think someone is going to just handle toxic substances and kill themselves knowingly? Come on dude.

FuzzyPickLE530 says:

Who should be retrofitting systems? In what region? Are you talking about specific countries or what?

Luciano Rosel says:

Just found your videos, and im pleased to be learning things i was on the fence on before, thank you!

Josh P. says:

This was hands down the best explanation of GHG and ozone and their effects I have come accross yet.

Gabriel Tremblay says:

Great videos, but do you know if there are any issues with health? Thanks.

B Sanchez says:

Somewhere i remember seeing the last letter in refrigerant types standing for Alternative aka a meaning akternative at the end of ie r134a. meaning Alternative

George Parsons says:

Uk laws are a lot different to America. If your UK check out this webinar

AitWelloul Tripolitania says:

Do they take into account their efficiency when calculating their footprint or just the refrigerant in itself

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