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R1234yf as a working fluid in Organic Rankine Cycle systems

A recent review article presented the use of HFO R1234yf and its mixtures in Organic Rankine Cycle (ORC) systems, namely in applications for waste heat recovery from internal combustion engines.

R1234yf is a low-GWP HFO with similar toxicity and thermodynamic properties to R134a, along with a minimal lifetime in the atmosphere. R1234yf has a lower flammability index which allows for safer operating conditions. R1234yf also has a lower critical temperature (36...

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