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Session: Poster session & Sponsor Exhibition
Session starts: Monday 07 October, 14:00

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Xiaoye Dai (Tsinghua University,China)
Qingsong An ()
Lin Shi (Tsinghua University,China)

Abstract:
Organic Rankine Cycle(ORC) was a suitable promising technology for the mid-and high-grade(180~350℃) heat energy, especially industrial waste heat. And high-temperature ORC gain more interest presently. In recent study, Alkanes were considered as suitable working fluids for high-temperature ORC by analysis of thermodynamic property. In fact, there were more aspects for the choice of working fluids and thermal stability is the important one. The thermal stability of some alkanes were studied by experiments. So the basic data about the thermal stability could be got in different temperatures. But thermal decomposition was not unacceptable certainly. There were different mechanisms of the harm of thermal decomposition, including noncondensable gas, carbon deposits and others. The effect of thermal decomposition of some alkanes was analysed concretely in the base of data about the thermal stability of them. So the suggested use temperature was given finally.