CO2 Transcritical Refrigeration
The new face of refrigeration
Over the last ten years, supermarket chains across Europe have been preparing for the F-Gas legislation and heavily investing in natural refrigerant alternatives. An enormous amount of money and technical development have been channelled into the refrigeration industry to find a suitable alternative. A clear leading technology emerged out of this process: a cooling system operating with Carbon Dioxide as the refrigerant.
Transcritical CO2 is now a mature and mainstream solution and is a technology you can rely upon over and above HFC refrigerants. There are so many good reasons to choose CO2 over HFC refrigerants, with future proofing investments, energy efficiency and sustainability heading the list.
isentra is proud to be a pioneer in the delivery of transcritical CO2 refrigeration technology to industrial and commercial markets.
Why use carbon dioxide
as an refrigerant?
F-GAS Regulations Don't Apply
First Class Refrigerant
Safe Non Toxic
Wide Temperature Range
Safe Non Flammable
CO2 - A low cost gas
Exceptional heat recovery
Main Stream Technology
CO2 – the refrigerant of choice for the future…
CO2 is a natural inert gas
Carbon Dioxide is a naturally occurring gas. It’s in the air we breathe and our fizzy drinks, and it’s set to replace highly polluting HFC synthetic refrigerants in mainstream cooling systems.
CO2 is low cost
CO2 is widely used in many different industries and in a vast number of applications. Its price has been low and stable for many years and it will remain highly cost-effective refrigerant.
CO2 is a mainstream solution
The food retail industry effectively funded the development of the CO2 cooling technology to mitigate the impact of the F-Gas Regulation, and CO2 cooling systems are now tried and trusted by most UK and European supermarket chains. Now, CO2 is a mature and frequently used, large-scale refrigeration solution.
CO2 is safe
Unlike any other natural refrigerant, Carbon Dioxide is both non toxic and non flammable, making it a very safe refrigerant to operate and handle. CO2 has an 'A1' Saftey rating and is not subject to the many onerous operator obligations that are in force with Ammonia refrigeration systems.
CO2 is a fantastic refrigerant
CO2 has excellent refrigeration properties and can provide cooling down to -50C and up to +15C: an impressive temperature range that can be delivered in high capacity and with great energy efficiency.
CO2 is freely available
CO2 is highly unlikely to be regulated against and is set to remain a mainstream refrigerant which is available for straightforward unrestricted purchase.
CO2 is future proof
CO2 is not subject to any part of the F-Gas Regulation. As a refrigerant that is safe, effective and with low climate impact, it will navigate refrigeration pollution well and will be the refrigerant of choice for the foreseeable future.
CO2 has impressive Heat Recovery capabilities
As we shift towards a more sustainable and efficient world, CO2 transcritical refrigeration cycles have the potential to exploit wasted heat and create significant energy savings.
Interested in CO2 refrigeration solutions for your business?
F-Gas regulations & CO2 cooling
FAQ - what you need to know
- What is the F-Gas regulation?
- What is Phase Down?
- How has the cost of HFC been affected?
- What is the future for HFC Refrigerants ?
- How harmful is HFC R404A to the environment compared to CO2?
- How safe is CO2 in refrigeration?
The original F-Gas Regulation was adopted in 2006 to manage and track the use of highly polluting synthetic fluorinated HFC gases. Further changes to the F-Gas legislation were made in 2014, these amendments centre heavily around the aggressive phase down in the supply and use of HFC Refrigerants.
The quantity of HFCs that can be placed on the EU market will be cut in a series of steps. By 2030, only 20 per cent of the quantity of HFCs that were sold in 2015 will be available.
The remaining 20% supply will be for specialist applications and not for mainstream refrigeration use.
HFC refrigerants have suffered a cost rise in excess of 400% between 2016 and 2020 with these looking set to continue to rise as further quotas are imminent.
As one of the world’s largest polluters, synthetic HFC refrigerants are now subject to aggressive phase down legislation, limited availability and higher costs which are forcing end users to choose alternative cooling solutions with a much lower Global Warming Potential (GWP) than HFC gases can provide.
Continued capital investment in HFC refrigeration systems is not advisable.
Traditional refrigerant R404A is 3800 times more harmful than CO2.
Even the new interim HFC refrigerants are 1700 times more harmful than CO2. These interim HFC's are not a legal long term solution either.
CO2 falls into safety group A1 which means it is non-toxic and non-flammable. CO2 is the only natural refrigerant with an A1 safety rating. Ammonia is B2, i.e. toxic and low flammability, whist Hydrocarbons are A3, i.e. none toxic but highly flammable.
The pressures inside a CO2 systems are higher that HFC systems, but after years of component development, these pressure are now the 'new normal' and perfectly safe.