微型有机兰金循环发电机MEMS涡轮旋转实验

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI:10.1109/PowerMEMS54003.2021.9658385

Kobayashi Yuya, Niki Yuya, Takeda Kenji, Aibara Megumi, Kaneko Minami, Uchikoba Fumio

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引用次数: 0

摘要

本研究旨在实现微型有机朗肯循环发电机，并采用MEMS工艺来减小涡轮结构的尺寸。所开发的MEMS涡轮具有毫米级结构，并以低沸点介质作为工作流体进行旋转运动，可以收集低温余热。在开式和闭式测量系统中对汽轮机转速进行了测量和比较。因此，在封闭系统中，加热温度为80.2℃，进口压力为0.26 MPa时，最大转速为113,207 rpm。由于低沸点介质在开放系统中转变为气液两相，开放系统的转速低于封闭系统。然而，在液相中从涡轮释放的工作流体对于缩小尺寸是可取的，因为它消除了对冷凝器的需要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Rotational Experiment of MEMS Turbine for Miniature Organic Rankin Cycle Generator

This research aims to realize a miniature ORC (organic Rankine cycle) generator, and a MEMS process is used to reduce the size of the turbine structure. The developed MEMS turbine had millimeter scale structure, and it demonstrated the rotational motion by a low-boiling-point medium as a working fluid that can be harvested a low temperature waste heat. The rotation speed of the turbine was measured and compared in open and closed measurement systems. As a result, in the closed system, the maximum rotation speed was 113,207 rpm at heating temperature of 80.2 °C and the inlet pressure of 0.26 MPa. The rotation speed of the open system was lower than that of the closed system because the low-boiling-point medium changed to gas-liquid two-phase in the open system. However, the working fluid released from the turbine in the liquid-phase is preferable for downsizing because it eliminates the need for a condenser.

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来源期刊

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)

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