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Testing and Thermodynamic Analysis of Low-Grade Heat Power Generation System Using Organic Rankine Cycle

机译:有机朗肯循环的低品位发电系统的测试和热力学分析

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Low grade heat power generation system using Organic Rankine Cycle (ORC) was introduced in this work. This system behaved better in thermodynamic efficiency than stream-Rankine cycle. Numerical thermodynamic model of Organic Rankine Cycle system was given in this work. Water, R142b, R123, R245fa and some other organic fluids were used as working fluid. The results will show that thermodynamic properties of working fluid and working conditions of the system can affect thermal efficiency greatly. The computation result will also show that system behavior in superheat is quite different for different working fluid. That is, when using water as working fluid, the efficiency will increase when the superheat increases; but when it is R123 or some other organic working fluids, the result may be just the opposite. The reason will be given in the paper. Experimental data of ORC using R142b is also showed.
机译:在这项工作中介绍了使用有机朗肯循环(ORC)的低品位热发电系统。该系统的热力学效率优于流朗肯循环。给出了有机朗肯循环系统的数值热力学模型。使用水,R142b,R123,R245fa和一些其他有机流体作为工作流体。结果表明,工作流体的热力学性质和系统的工作条件会极大地影响热效率。计算结果还将表明,对于不同的工作流体,过热状态下的系统行为是完全不同的。也就是说,当使用水作为工作流体时,过热度会提高效率;但是当是R123或其他有机工作流体时,结果可能恰好相反。原因将在本文中给出。还显示了使用R142b进行ORC的实验数据。

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