Different fluids are characterized from the thermal stability perspective on the contrary, a systematic investigation of pure/binary mixtures of linear siloxanes (MM, MDM, MD2M, MD3M) is still missing in open literature. ![]() In this perspective the use of mixtures can possibly increase the thermal stability limit with respect to the pure counterparts (this aspect has to be investigated). Each fluid exhibits a thermal stability limit whose evaluation is crucial to realize cycles with the highest possible maximum temperature (thus with high efficiency) with no significant decomposition. Their use is limited at high temperature by the molecule cracking and the consequent formation of decomposition products featuring thermodynamic properties different from the original ones. ![]() ![]() These fluids are largely employed in energy applications, since they can be favorably exploited in ORCs indeed, their use leads to high efficiency cycles, they are non-toxic, environmentally friendly (zero ODP, almost zero GWP), relatively low-cost. The work aims at evaluating the thermal stability limit (decomposition temperature) of organic fluids (siloxanes) for ORC applications, the fluids are pure and/or in binary mixtures.
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