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首页> 外文会议>International Conference on Advances in Energy, Environment and Chemical Engineering >Study of Organic Rankine Cycles with Zeotropic Mixture Working Fluids Applied on the Waste Heat Recovery System
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Study of Organic Rankine Cycles with Zeotropic Mixture Working Fluids Applied on the Waste Heat Recovery System

机译：跨ropic混合物工作流体施加在废热回收系统上的有机朗朗循环的研究

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Taking good advantage of the diesel-exhaust with the Organic Rankine Cycle (ORC) System contributes to raising the thermal efficiency, saving fuel consumption and reducing the cost, since there is much energy carried by the diesel-exhaust. There come some problems on the match for the temperature of heat source when the ORC system uses pure fluids as working fluids, so we considered adopting zeotropic mixture working fluids to solve the problems and improving the comprehensive properties of thermodynamics. The zeotropic mixture performs better than the pure fluid at the thermal efficiency, exergy efficiency, net work and the expansion ratio in the regenerative cycle, while it has no superiority than the pure fluid in the basic process. The study of zeotropic mixture suggest that the higher the temperature of the heat source and the lower the temperature of the cold source is, the higher cycle thermal efficiency and net work are. When taking cycle net work as target function, there is the optimal evaporation temperature and superheat degree. We should choose the suitable evaporation temperature first because its priority is higher than the superheat degree by comparing different influence factors on the cycle.
机译：利用有机朗肯循环（ORC）系统的柴油排气效力有助于提高热效率，节省燃料消耗并降低成本，因为柴油排气有很多能量。当ORC系统使用纯净流体作为工作流体时，热源温度的匹配存在一些问题，因此我们考虑采用跨ropic混合物工作流体来解决问题并提高热力学的综合性质。延长混合物比再生循环中的热效率，高度效率，净工作和膨胀比更好地表现优于纯净流体，而在基本过程中，它没有比纯净流体的优势。 ZeoTropic混合物的研究表明，热源温度越高，冷源的温度越高，循环热效率越高，净工作是。在将循环净值作为目标功能时，存在最佳蒸发温度和过热程度。我们应该首先选择合适的蒸发温度，因为它优先于通过比较循环上的不同影响因素来高于过热程度。

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