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Análisis experimental de la mezcla CO2/R1270 como alternativa al CO2 en una instalación frigorífica de CO2 transcrítica.
Experimental analysis of the CO2/R1270 mixture as a CO2 alternative in a transcritical CO2 refrigeration plant.
IIR document
Evaluation of flammability characteristics of mixed refrigerants R134a/R1270, R134a/R170, and R170/R1270.
Análisis experimental de las mezclas de refrigerantes naturales CO2/R290 y CO2/R1270 en una instalación de CO2 transcrítica empleando diferentes configuraciones.
Experimental analysis of natural refrigerant blends CO2/R290 and CO2/R1270 in a transcritical CO2 plant using different configurations.
Optimización energética de los refrigerantes R152a, R1234yf, R290, R1270, R600a y R744, como alternativa al R134a en un armario de refrigeración vertical.
Energy optimisation of R152a, R1234yf, R290, R1270, R600a and R744 refrigerants as alternatives to R134a in a vertical refrigeration cabinet.
Insight into the flammability limit and combustion reactions behaviors of R1233zd(E)/R1270 mixtures refrigerants.
Prototype of eutectic refrigeration system working with R1270 refrigerant.
Experimental study on the solubility of Propylene (R1270) in PAG, POE and AB lubricants.
Experimental evaluation of the novel R744/R1270 blend in a transcritical refrigeration plant.
Experimental investigation of the performance of an R1270/CO2 cascade refrigerant system.
Experimental comparison of CO2 and alternative CO2/R1270 mixtures in a transcritical refrigerating plant. Energy evaluation in an MT application.
Experimental evaluation of a cascade refrigeration system with the natural refrigerants R290/R744, R1270/R744 and R600a/R744.
Condensation heat transfer and pressure drop of azeotropic mixture refrigerant R32/R1270 inside horizontal small-diameter tubes.
Thermodynamic performance evaluation of a cascade refrigeration system with mixed refrigerants: R744/R1270, R744/R717 and R744/RE170.
Convective condensation of R600a, R290, R1270 and their zeotropic binary mixtures in horizontal tubes.
Energy improvements in a stand-alone transcritical refrigeration system using a low-GWP mixture of CO2/R1270.
Refrigeration sector monitoring
9 results
A new non-flammable mixture to boost the performance of CO2 systems
In a recent IJR article, researchers propose combining R744 with Dimethyl-ether (DME) to boost system performance while ensuring safety and low environmental impact, in a recent IJR...
Air conditioning: towards a relaxation of the rules for the use of flammable refrigerants
While the European Commission is paving the way for the use of flammable refrigerants as an alternative for split systems, the current revision of the international standard IEC 60335-2-40 should allow higher...
UK: Waitrose installs HFO chillers in store
Waitrose, the English supermarket chain, is testing chillers using HFO-1234ze refrigerant at its supermarket in Bromley, near London, UK.
The global natural refrigerants market on the rise
The natural refrigerants market is projected to register a CAGR of 11.5% between 2015 and 2020, to reach USD 1,419.19 million in 2020 from USD 821.74 million in 2015.
Solar cooling: Plans for air-conditioned stadiums in Qatar
When Qatar won the bid to host the 2022 football World Cup in December 2010, it came as a surprise. One of the major causes of scepticism was the average summer temperatures of over 40°C with recent peaks at 50°C. But central to Qatar's bid was a...
US EPA proposes acceptance of hydrocarbons and R32 in 6 applications
The US EPA has proposed a range of acceptable uses for hydrocarbon refrigerants – R600a, R290, R170 and R441A along with R32 under the EPA’s Significant New Alternatives Policy (SNAP)
US: EPA expands the use of 4 hydrocarbons and R32
The US Environmental Protection Agency (EPA) recently authorised the use of four hydrocarbon refrigerants and R32 in various applications.
Trends and Figures: World AC heat pump market
The use of heat pumps (HPs) is increasing in the European Union (EU), Japan, and China. According to JARN's figures, the global market for room air conditioners (RACs) and packaged air conditioners (PACs) was about 78.7 million units in 2007, 72%...
German survey on retailers’ energy policies
A German survey on retailers’ energy policies spans the entire retail industry, representing a total worth of €165 billion in sales, i.e. about 35% of German, Austrian and Swiss retail sales. 37% of the surveyed companies were from food retailing,...
IIR news
1 result
International events: GL2008
The 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008) was held in Copenhagen on September 7-10, 2008. The event attracted 397 participants from 32 countries. The initial conferences in the series tended to attract participants...
Encyclopedia of Refrigeration
Hydrocarbon refrigerants
Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...
