Economics and availability

The phase-out of some categories of substances by the International Protocols has stimulated the research on more environmentally friendly fluids. Before considering a fluid as a potential candidate for ORC systems, a market investigation should be done to know if the fluid is market available and cheap. To give an idea of the prices of some fluids, the information in the Table 4 below was taken from a supplier in Athens, Greece.

Fluids

Price (Euro/kg)

FREON 22 DU PONT

3,33

SUVA 134A DU PONT

6,34

SUVA 401B DU PONT

10,85

SUVA 407C DU PONT

6,63

SUVA 123 DU PONT

11,76